Regulatory service life of the asphalt coating GOST. The road work will establish a warranty period. Canopy over the site

Preface

Objectives and principles of standardization in the Russian Federation are established by the Federal Law of December 27, 2002 No. 184-FZ. "On Technical Regulation", but the rules for the application of national standards of the Russian Federation - GOST R 1.0-2004 "Standardization in the Russian Federation. Basic provisions "

Information about standard

1 developed by the Autonomous Non-Profit Organization "Research Institute of the Transport and Construction Complex" (ANO "NII TSK") and an open joint-stock company "Asphalt concrete plant No. 1", St. Petersburg (OJSC "Abz-1", St. Petersburg Petersburg)

2 Submitted by the Technical Committee on Standardization of TC 418 "Road Economy"

3 approved and commissioned by the Order of the Federal Agency for Technical Regulation and Metrology of September 14, 2011 No. 297-st

4 This standard has been developed taking into account the main regulations of the European Regional Standard EN 13108-6: 2006 "Bituminous mixtures. Technical conditions on the material. Part 6. cast asphalt "(EN 13108-6: 2006" Bituminous Mixtures - Material Specifications - Part 6: Mastic Asphalt ", NEQ)

5 introduced for the first time

Information about the changes to this standard is published in the "National Standards" informational indicator annually, and the text of the changes and amendments - monthly published information indicators "National Standards". In case of revision (replacement) or the cancellation of this standard, the appropriate notification will be published in the National Standards issued information indicator monthly. Relevant information, notification and texts are also posted in the public information system- on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet

GOST R 54401-2011

National Standard of the Russian Federation

Road roads

Asphalt road casting hot

Technical requirements

Automobile Roads of General Use. Hot Road Mastic Asphalt. Technical Requirements.

Date of administration - 2012-05-01

1 area of \u200b\u200buse

This standard applies to the asphalt pavement pavement hot and on the mixture of asphalt concrete road cast hot (hereinafter referred to as the mixtures of alloy), used for the coating device on public roads, bridge structures, tunnels, as well as for the production of patch repair, and establishes specifications for them. .

2 Regulatory references

This standard uses regulatory references to the following standards:

Purpose

A type

Maximum size

mineral grains

parts, mm.

30-51

From 40 to 50

New construction, capital and meal repair

15-30

From 30 to 45

New construction, capital and meal repair, sidewalks

0-15

From 20 to 35

Sidewalks, Bicycle Tracks

5 Technical requirements

5.1 Mixtures cast must be prepared in accordance with the requirements of this Standard for the Technological Regulations, approved by the Independent Manufacturer.

5.2 Cereals of the mineral part of the mixtures of cast and asphalt concrete on their basis, when using round sieves, must match the values \u200b\u200bspecified in the table

Table 2

The grain compositions of the mineral part of the mixtures of cast and asphalt concrete on their basis, when using square sieves, are shown in the application.

The graphs of the allowed particle size compositions of the mineral part of the mixture of the cast are given in the application.

The physicomechanical properties of mixtures of cast and asphalt concrete on them are determined in accordance with GOST R 54400..

Table 3.

5.5 The maximum temperature indicated in the table is valid for any location in the mixing mechanism and storage and transportation tank.

5.6 The values \u200b\u200bof the depth of the depth of the stamp depending on the purpose and location of the mixtures of cast and asphalt concrete on them are indicated in the table.

Table 4.

The depth of the depth of the stamp at a temperature of 40 ° C for the first 30 minutes of the test and (if necessary) increase the indicator of the depth of the stamp for the next 30 min, the tests are determined in accordance with GOST R.

5.7 Mixtures cast must be homogeneous. The homogeneity of litter mixtures is estimated in accordance with GOST R 54400. By the coefficient of variation of values \u200b\u200bof the indicator of the depth of the dummy of the stamp at a temperature of 40 ° C for the first 30 minutes of the test. The coefficient of variation for mixtures of cast types I and II should be no more than 0.20. This indicator for a mixture of cast type III is not normalized. The indicator of the homogeneity of the mixture of the cast is determined with the frequency at least than monthly. The indicator of the homogeneity of the mixture of the cast is recommended for each manufactured composition.

5.8 Requirements for materials

5.8.1 For the preparation of litter mixtures, crushed stone obtained by crushing of dense rocks is used. Crushed stone from dense rocks, which is part of the mixtures of cast, must comply with the requirements. GOST 8267..

For the preparation of mixtures of cast, crushed stone fractions from 5 to 10 mm are used; Over 10 to 15 mm; Over 10 to 20 mm; Over 15 to 20 mm, as well as mixtures of these fractions. There should be no extraneous clogging impurities in the crushed.

Physical and mechanical indicators of rubble must comply with the requirements specified in the table.

Table 5.

5.8.2 For the preparation of mixtures of cast apply sand from sefs of crushing, natural sand, as well as their mixture. Sand must comply with the requirements GOST 8736. . During the production of mixtures of cast for the upper layers of coatings of roads and bridge structures, sand from sefs of crushing or a mixture with natural sand, containing no more than 50% of natural sand. The grain composition of natural sand in size should correspond to the sand not lower than the shallow group.

Physico-mechanical sand indicators must comply with the requirements specified in the table.

Table 6.

5.8.3 For the preparation of mixtures of cast, mineral powder is used non-activated and activated, corresponding to the requirements GOST R 52129..

The permissible powder content of sedimentary (carbonate) rocks from the total mass of the mineral powder should be at least 60%.

It is allowed to use technical dust of the main and medium rocks from the dust collecting system of mixing plants in an amount of up to 40% of the total mass of the mineral powder. The use of hydroxide dust of acidic rocks is allowed under the condition of its content in the total mass of the mineral powder in an amount of no more than 20%. The values \u200b\u200bof dust indicators should meet the requirements GOST R 52129. For MP-2 brand powder.

5.8.4 For the preparation of mixtures of cast as a binder use bitumens of oil road viscous brands BND 40/60, BND 60/90 GOST 22245. As well as modified and other bitumen binders with improved properties on regulatory and technical documentation, coordinated and approved by the Customer in the prescribed manner, subject to the quality of the quality of the asphalt concrete cast from these mixtures at a level not lower than those established by this standard.

5.8.5 When using asphalt concrete, cast on bridge structures, in the upper and lower layers of road coatings with high intensity intensity and calculated loads on the axis should be used by polymers of bitumen. In these cases, preference should be given by polymer-bitumen binders based on styrene-styrene-styrene-styrene-styrene-styrene type 40 and PBW 60 GOST R 52056..

5.8.6 When designing mixtures of cast type of binder should be appointed taking into account the climatic features of the construction area, the appointment and place of use of the structural layer required (projected) deformative properties of the mixtures of cast and asphalt concrete properties based on them. The suitability of the binder to achieve the required functional characteristics of museums of cast and asphalt concrete on them is confirmed in the process of mandatory and optional tests specified in GOST R 54400..

5.8.7 In the production of laying mixtures, it is permissible to use binders modified by introducing deflectors into their composition, allowing to reduce production temperatures, storage and laying of laying mixtures by a value from 10 ° C to 30 ° C without deteriorating fluid-belands. The introduction of deflements is produced in bitumen (polymer-bitumen astringent) or in a mixture of litter in the process of its production on the asphalt mixing unit.

5.8.8 The specified composition of the mixture of cast should be provided in the process of its production on the asphalt mixing unit. It is forbidden to change the composition of the mixture by cast after the completion of the process of its production by administering to the mobile crossover of binder, petroleum products, plasticizers, resins, mineral materials and other substances in order to change the viscosity of the mixture of cast and physicomechanical characteristics of cast asphalt concrete.

5.8.9 The use of recycled asphalt concrete (asphalt translucent) is allowed as a placeholder in a mixture of cast. At the same time, its content should not exceed a 10% mass fraction of the composition of the mixture by cast for the device of the lower or upper layers of the road surface and the patch repair and a 20% mass fraction of the composition of the mixture by cast for the device of the leveling layer. At the request of the consumer, the permissible percentage of asphalt production content in the mixture of the cast may be reduced. The maximum grain size of rubble contained in the asphalt storage should not exceed the maximum grain size of rubble in the mixture of cast. When designing mixtures of laying with the use of asphalt production, the mass proportion of the content and the properties of the binder in this aggregate should be taken into account.

6 Safety and Environmental Requirements

6.1 When preparation and laying of mixtures of cast must be followed by general security requirements for GOST 12.3.002. and fire safety requirements GOST 12.1.004.

6.2 Materials for the preparation of mixtures of cast (crushed stone, sand, mineral powder and bitumen) must comply with the hazard class not higher than IV GOST 12.1.007 , belonging to the nature of the harmfulness and degree of impact on the human body to low hazardous substances.

6.3 The norms of extremely permissible emissions of pollutants into the atmosphere during the work of the work should not exceed the values \u200b\u200bestablished by GOST 17.2.3.02.

6.4 The air in the working area when cooking and laying mixtures of cast must meet the requirements GOST 12.1.005.

6.5 The specific effective activity of natural radionuclides in mixtures of cast and cast asphalt concrete should not exceed the values \u200b\u200bestablished by GOST 30108..

7 Rules acceptance

7.1 Acceptance of wall mixtures produced by parties.

7.2 Party consider any amount of a mixture of cast one type and composition produced at an enterprise on a single mixing unit for one shift, using a variety of single delivery.

7.3 To assess the compliance of mixtures of licensed requirements of this standard, acceptance and operational quality control are carried out.

7.4 Acceptance-completed control of the mixture of cast is carried out on each batch. When receiving testing tests, water saturation is determined, the depth of indulgence of the stamp and the composition of the mixture of cast. The indicators of the porosity of the mineral island and residual porosity and the indicator of the specific effective activity of natural radionuclides are determined by selecting the compositions of the mixture by cast, as well as with the change in the composition and properties of the source materials.

7.5 With the operational control of the quality of the mixtures of cast in production, the temperature of the mixture is determined by the mixture in each shipped car, which should not be lower than 190 ° C.

7.6 On each batch of the mixture shipped by a cast consumer issues a quality document containing the following product information:

The name of the manufacturer and its address;

Number and date of issuance of the document;

Name and address of the consumer;

Order number (batch) and the amount (mass) of the mixture of the cast;

Type of mixture cast (number of the manufacturer's nomenclature);

Temperature of the mixture by cast when shipping;

The brand of the binder used and the designation of the standard on which it was produced;

Designation of this standard;

Information about the added additives and asphalt production.

At the request of the consumer, the manufacturer must provide the consumer with complete information about the released batch of products, which includes the receiving and trial and testing data produced during the selection of the composition, in the following indicators:

Water saturation;

Depth of indulgence of the stamp (including an increase in the indicator after 30 minutes);

Porosity of the mineral part;

Residual porosity;

Homogeneity of the mixture of cast (according to the results of the tests of the preceding period);

Specific effective activity of natural radionuclides;

Granulometric composition of the mineral part.

7.7 Consumer has the right to conduct a control check for the compliance of the mixture supplied by casting the requirements of this standard, observing the sampling methods, preparation of samples and tests specified in GOST R 54400..

8 Test Methods

8.1 Porosity of the mineral island, residual porosity, water saturation, depth of indentation of the stamp, composition of the mixture of cast, tensile strength when split cast asphalt concrete GOST R 54400..

In the case of use in the selection of grain compositions of square sieves to determine the grain composition of the mixture, the mold must be used a set of sieve in accordance with the application.

8.2 Preparation of samples from mixtures of cast and asphalt concrete on their basis for tests produced by GOST R 54400..

8.3 The temperature of the mixture of the cast is determined by a thermometer with a measurement limit of 300 ° C and an error of ± 1 ° C.

8.4 The specific effective activity of natural radionuclides is taken by its maximum value in the mineral materials used. This data indicates a document on the quality of the enterprise-supplier.

In the absence of data on the content of natural radionuclides, the enterprise - the manufacturer of the mixture of the cast carries out the input control of the materials according to GOST 30108..

9 Transportation and storage

9.1 The prepared mixtures of the cast must be transported to the place of laying in Kohchers. It is not allowed to transport the mixture by cast in car dump trucks or other vehicles in the absence of stirring and temperature maintenance installed on them and the functioning systems.

9.2 The maximum temperature of the mixture by cast during the storage must comply with the values \u200b\u200bspecified in the table, or the requirements of technological regulations for this type of work.

9.3 Mandatory conditions for transportation of mixtures of laying to the place of installation:

Forced mixing;

Elimination of segregation (bundle) of the mixture of cast;

Cooling protection, atmospheric precipitation.

9.4 In the case of long-term transportation or storage of a mixture by cast in stationary flocks on asphalt mixing plants, its temperature should be reduced during the period of the intended storage time. When storing a mixture of a resulting from 5 to 12 hours, their temperature should be reduced to 200 ° C (when using polymer-bitumen binders) or up to 215 ° C (when using viscous oil bitumen). After the end of the storage period, immediately before the production of styling work, the temperature of the mixture is increased to the permissible values \u200b\u200bspecified in the table or in the technological regulations on this type of work.

9.5 Time that has passed from the production of a mixture by cast on an asphalt mixing unit to a complete unloading of it from a mobile crossbox when laying into a coating should not exceed 12 hours.

9.6 Called mixture is subject to disposal as construction waste in the following conditions:

Exceeding the maximum allowable storage time of the cast mixture;

The unsatisfactory prefabitability of the mixture, the loss of the ability to be a molded mixture and the ability to spread along the base, crumpledness (incompleteness), the presence of brown smoke emanating from the cast mixture.

9.7 Measuring instruments tracking the temperature of the cast mixture on the asphalt mixing installation and in Kochra (stationary and mobile) should be calibrated (calibration) with periodicity at least once every three months.

10 instructions for use

10.1 The device of coating from the mixture of the mold is carried out in accordance with the technological regulations approved in the prescribed manner.

10.2 The mixture of cast should be placed exclusively in a liquid or visco-fluid state that does not require seal.

10.3 Laying mixtures of cast should be made at ambient air temperature and underlying structural layer not lower than 5 ° C. It is allowed to use mixtures of cast at ambient temperature to minus 10 ° C for the production of work on the removal of an emergency on the carriageway of roads with asphalt concrete coatings. In these cases, measures should be provided for ensuring sufficient quality of the adhesion of the asphalt concrete cast with the underlying structural layer.

10.4 Mixtures cast for the device of road coatings, sidewalks and patching should be unloaded directly to the surface of the underlying structural layer or waterproofing layer. The surface of the underlying layer should be dry, clean, deemed and must meet the requirements for asphalt concrete and monolithic cement concrete grounds and coatings.

When laying a mixture of cast on a concrete base or asphalt concrete coating prepared by the method of cold milling, the pretreatment of such surfaces of the bitumen emulsion for GOST R 52128. With a flow rate of 0.2 - 0.4 l / m 2 in order to ensure proper clutch of the layers. The accumulation of the emulsion in the reduced places of the surface of the base is not allowed. Mandatory is the requirement of the complete decay of the emulsion and evaporation of the moisture formed during the start of laying the mixture by cast. Use to process the surfaces of bitumen instead of a bitumen emulsion is not allowed.

Processing the emulsion of the underlying layer made of cast asphalt concrete is not produced when the lower and upper coating layers are arranged from the cast asphalt concrete.

The processing of the emulsion of the underlying layer of cast asphalt concrete is allowed not to produce when the upper layer is made of a rubberous-mastic asphalt concrete mixture by GOST 31015. At the time interval between the layer device, no more than 10 days, as well as in the absence of traffic in the current period by the underlying layer.

10.5 The value of the maximum permissible longitudinal and transverse slopes of the road construction, when using a cast mixture, ranges from 4% to 6%, depending on the characteristics of the specified composition of the mold mixture and its viscosity.

10.6 The mixtures of all types of all types are allowed to be laid as a mechanized manner using a special device for moving the mixture of cast (finisher) and manually. The required workability of the litter mixtures is achieved by the manufacturer by adjusting the specified composition and selection of bitumen binders, the introduction of deflements during the production of the mixture by casting, provided that the asphalt concrete is maintained by the cast strength characteristics specified in. Adjustability control can be done by changing the temperature mode of the mixture by cast during its laying, taking into account the fulfillment of the requirements for the minimum and maximum permissible temperatures of the mixture by cast. The mixture intended for mechanized laying may have an increased viscosity and a lower spreading rate over the surface during unloading.

10.7 The final stage of the road coating device with a molded asphalt concrete layer is a rough surface device, carried out by inserting "hot" in accordance with the technological regulations approved in the prescribed manner.

10.8 Physical and mechanical indicators of rubble used for the device of the rough surface of the top layer of coating from the asphalt concrete casting by the insertion method "hot" must comply with the requirements provided in the application.

For the device of the rough surface of the upper layers of the coating of the asphalt concrete of the road cast hot method, a fractionated crushed stone of erupted rocks of fractions from 5 to 10 mm is used, over 10 to 15 mm and a mixture of fractions from 5 to 20 mm by GOST 8267. With a flow rate of 10 - 15 kg / m 2.

When the bottom layers of the coatings from the mixtures of cast, in order to further provide adhesion with the upper layers of coatings from all types of compacted asphalt concrete, the rubble is the distribution of the erupted rocks of fractions from 5 to 10 mm "hot" with a flow rate of 2 - 4 kg / m 2. It is allowed not to make the sprinkling of the lower layer of rubble when the device of two-layer coatings from the asphalt concrete, subject to the absence of motion along the bottom layer of the coating.

To ensure proper clums of surface treatment with asphalt concrete, it is recommended to use crushed stone treated with bitumen (black crushed stone). The content of bitumen should be selected so as to eliminate its drainage, flipping of rubble or uneven coating of the bitumen of the surface of rubble.

Physical and mechanical indicators of rubble used for the device of the rough surface of the upper layers of the coating from the asphalt concrete, the insertion method must comply with the requirements presented in the table.

Table A.1.

The recommended temperature range of the mixture by cast at the beginning of the distribution process over its surface of grain mineral materials range from 140 ° C to 180 ° C and should be clarified during the work of the work.

For the device of a rough surface of pedestrian tracks, sidewalks and cycling paths, natural fractionated sand with a flow rate of 2 - 3 kg / m 2 is used.

Table A.2.

There is a legislative document that regulates the warranty period for asphalt coverage of access roads and platforms (parking, not a highway). In 2014, it seems to be issued some decree on this matter. The client is a customer and to him in the contract you need to make an item on the warranty period.

Answer

It is always convenient to go to the car on a flat and smooth freeway, developing more speed. By no means rare the quality of the track does not allow it to do, since the coating has a deviation from the norm and is unsuitable for high-quality ride. Over time, under the pressure of the wheels of machines, especially large trucks, the influence of adverse natural conditions in the form of rain, hail, sharp change of temperature, asphalt concrete flooring loses its primordial appearance. Covered with small cracks, holes, potholes, which shortens the time of high-quality operation of the highway. Riding for such worn roads leads to damage to cars and can even lead to an accident.

Causes of destruction

As a result of the use of coatings from asphalt concrete, they are subjected to various deformations. Wear houses are formed due to external and internal influences on. Defects on covering from the influence of external factors include:

• power loads from automotive wheels;
• atmospheric precipitation (rain, temperature changes, thawing, snow, freezing).

Internal factors associated with the destruction of asphalt concrete coating arise as a result of incorrect preparation of the project for roads, their construction and repair:

1. The destruction of the road surface leads incorrect design of the asphalt concrete road highway. Inaccurately conducted studies, calculations and mistakes in determining the intensity of the vehicle flow can contribute to the formation of defects on the road from asphalt concrete and lead to the destruction of the road structure, namely: the integrity of the asphalt layer on the road surfaces will violate; The base ground will see; reduced the strength of the ground pillow; The wear of the asphalt concrete flooring follows.
2. Old techniques are applied and low-quality materials are selected when working with an asphalt coating. Most recently, for installation, styling of the asphalt mortar and repair, the hot, which included poor-quality bitumen were used. It caused damage to the root flooring and worsened the strength characteristics of the finished mixture for the asphalting of the road surface. However, construction does not stand still, and today the latest polymer-bitumen materials are being developed and introduced, capable of significantly improving the properties of the material and the future route. Various additives in the mixture were gained great popularity to: improving the clutch, increase the resistance to water and the formation of cracks. Thanks to these additives, the durability of the road canvase to minus temperatures is provided. To avoid defects and wear of the roadbed, it is necessary not only to apply new mixtures for laying asphalt, but also to choose new technologies that will allow stabilize and strengthen the weakening of the reasons for the base. To prevent the destruction of coatings, use the reinforcing grid that will strengthen the road construction and increase the duration of the operation of the asphalt web.
3. Defects and wear on the asphalt concrete coating occur due to the incorrect technological process when the road construction is erected. Destruction is formed due to the mistakes made when laying asphalt and the repair of the track. Contribute to the emergence of defects of violation of the rules for transporting asphalt concrete solution, as a result of which the mixture is supplied to the wrong temperature. When the laid mixture is sealing, air bubbles were not removed or, on the contrary, the solution was too sealed, then the asphalt can be caught to crack and decrease. The destruction of the route may arise as a result of poor-quality preparation of land fabric and work on the installation of road facilities.
4. Defects on the road surface are most often formed as a result of weather conditions when the moisture penetrates the asphalt fabric during the rain, and the hot rays of the sun spoil the upper layer of the track - the adhesion of the asphalt concrete strength is carried out, which leads to the formation of chosel. In the period of minus temperatures, the gathered moisture in the layers of asphalt concrete is capable of increased in the amount and thereby destroy the structure and sealing of asphalt.
5. As a result of large loads from vehicles, road linen is destroyed. High loads on the surface of the track are due to an intense flow of vehicles, as a result of which the capacity of the bandwidth in 24 hours is exceeded and as a consequence - the resource of the track of the track is reduced. The increase in the axial load due to the operation of the road coating by vehicles with heavy lifting capacity leads to the destruction of the asphalt concrete canvase, the formation of a gauge and cracks.

Damage to the pavement from asphalt concrete may occur as a result of the complex effect of external and internal factors.

Main types Defects

Asphalt damage are the following types:

• Break. It is a slot on the asphalt plot where the flow of vehicles is passed. If it does not pate cracks in time, they can increase in size and turn into a large diameter break.
• Expiration of service. The destruction associated with the long-term operation of the canvas, on which the repair was not carried out, affect the thickness of the asphalt layer.
• Reducing the strength of asphalt concrete. As a result of large loads from heavy trucks, the canvas drawdown is formed and the destruction of the upper coating layer in the form of irregularities, chipping and gauge.
• Potholes. Destroying in the form of chosel - this is a recess with a sharp break of the edges that occur due to improper masonry of asphalt concrete using low-quality materials.
• Peeling. The formation of peeling on the road surface due to separation from the top layer of the coating particles. It is formed due to constant variable effects on the road surface of the frost and thaw.
• Climatic influences. During the period of melting of the snowmates, a large amount of fluid is formed, which is capable of destroying the track of the track, which entails a decrease in the strength characteristics of the asphalt concrete.
• Darking. This type of damage occurs due to the violation of the laying or repair of the roadway, namely, work at atmospheric precipitation or minus temperatures.
• Cracks. The slots are formed on the road surface as a result of a sharp change of temperature regimen.
• Drawdown There is a drawdown due to the selected low-quality materials for laying the web, as well as as a result of insufficient compaction of the asphalt mixture or soil.

GOST R 54401-2011

National Standard of the Russian Federation

Road roads

Asphalt road casting hot

Technical requirements

Automobile Roads of General Use. Hot Road Mastic Asphalt. Technical Requirements.

OX 93.080.20

Date of introduction 2012-05-01

Preface

Preface

1 Developed by an autonomous non-profit organization "Research Institute of the Transport and Construction Complex" (ANO "NII TSK") and an open joint-stock company "Asphalt concrete plant N 1", St. Petersburg (OJSC "Abz-1", Sankt Petersburg)

2 Submitted by the Technical Committee on Standardization of TC 418 "Road Economy"

3 approved and commissioned by the Order of the Federal Agency for Technical Regulation and Metrology of September 14, 2011 N 297-st

4 This standard is developed taking into account the main regulations of the European standard EN 13108-6: 2006 * "Bituminous mixtures. Specifications on the material. Part 6. Cast Asphalt" (EN 13108-6: 2006 "Bituminous Mixtures - Material Specifications - Part 6: Mastic Asphalt ", NEQ)
________________
* Access to international and foreign documents mentioned in the text can be obtained by contacting user support. - Note database manufacturer.

5 introduced for the first time

6 reprint. October 2019


The rules for applying this standard are established inarticle 26 of the Federal Law of June 29, 2015 N 162-FZ "On Standardization in the Russian Federation" . Information on the changes to this standard is published in the annual (as of January 1 of the current year) the information indicator "National Standards", and the official text of the amendments and amendments - in the monthly information indicator "National Standards". In case of revision (replacement) or the cancellation of this standard, the appropriate notification will be published in the nearest issue of the monthly information indicator "National Standards". Relevant information, notification and texts are also posted in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet (www.gost.ru)

1 area of \u200b\u200buse

This standard applies to the asphalt pavement pavement hot and on the mixture of asphalt concrete road cast hot (hereinafter referred to as the mixtures of alloy), used for the coating device on public roads, bridge structures, tunnels, as well as for the production of patch repair, and establishes specifications for them. .

2 Regulatory references

This standard uses regulatory references to the following standards. For dated references, only the specified publication of the reference standard is used, for undated - the last edition (including all changes):

GOST 12.1.004 Labor safety standards. Fire safety. General requirements

GOST 12.1.005 System of labor safety standards. General sanitary and hygienic requirements for the air of the working area

GOST 12.1.007 System of labor safety standards. Harmful substances. Classification and general safety requirements

GOST 12.3.002 Labor safety standards system. Production processes. General safety requirements

GOST 17.2.3.02 Rules for establishing permissible emissions of harmful substances by industrial enterprises

GOST 8267 Crushed stone and gravel from dense rocks for construction work. Technical conditions

GOST 8269.0 Crushed stone and gravel from dense rocks and waste industrial production for construction work. Methods of physical and mechanical testing

GOST 8735 Sand for construction work. Test methods

GOST 8736 Sand for construction work. Technical conditions

GOST 22245 Bitumes Petroleum road viscous. Technical conditions

GOST 30108 Building materials and products. Definition of specific effective activity of natural radionuclides

GOST 31015 Mixtures asphalt concrete and asphalt concrete-tank-mastic. Technical conditions

GOST R 52056 Binding polymer-bitumen roads based on styrene-butadiene-styrene type block copolymers. Technical conditions

GOST R 52128 Emulsion Bituminous road. Technical conditions

GOST R 52129 Mineral powder for asphalt concrete and organoineral mixtures. Technical conditions

GOST R 54400 roads for general use. A pavement asphalt road is hot. Test methods

Note - When using this standard, it is advisable to check the action of reference standards in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet or on the National Standards Annual Information Signal, which is published as of January 1 of the current year, and on issues of the monthly information pointer "National Standards" for the current year. If the reference standard is replaced, to which the undated link is given, it is recommended to use the current version of this standard, taking into account all changes made to this version. If the reference standard is replaced by a dated reference, it is recommended to use the version of this standard with the above-mentioned approval (adoption). If, after approval of this standard in the reference standard, to which the dated reference is given, the change has been made affecting the provider to which the link is given, this provision is recommended to be applied without taking into account this change. If the reference standard is canceled without replacement, the position in which the reference is given to it is recommended to be applied in a portion that does not affect this link.

3 Terms and Definitions

This standard applies the following terms with appropriate definitions.

3.1 asphalt travel cast hot: Frozen in the process of cooling and formed in the coating mixture asphalt concrete road cast hot.

3.2 asphalt edge: The material obtained as a result of the milling of an existing asphalt concrete coating (recycled asphalt concrete).

3.3 leveling layer: The layer of the thickness variable, which is applied to the existing layer or surface in order to create the desired surface profile for the device of the next structural layer of uniform thickness.

3.4 binding substance (binder): Organic compound (viscous road bitumen, modified bitumen), intended for connecting the grains of the mineral part of the molded mixture.

3.5 deflegmator: Special additives based on natural waxes and synthetic paraffins with a melting point from 70 ° C to 140 ° C, used to modify oil binders in order to reduce their viscosity.

3.6 additive: A component that is allowed to add to the mixture in certain quantities to effect on the properties or color of the mixture.

3.7 road covering: The design consisting of one or more layers, which perceives the load from transport and providing its unhindered movement.

3.8 the specified composition of the mixture (composition of the mixture): The optimally selected composition of a certain asphalt concrete mixture, indicating the granulometric composition curve of the mineral part of the mixture and the percentage of components.

3.9 sour rocks: Magmatic rocks containing more than 65% silicon oxide ().

3.10 kohler (Mobile Kohler): Special mobile thermos boiler for transporting a mixture of cast, equipped with heating, mixing system (with autonomous or without or without it) and instruments to ensure the temperature control of the mixture by cast.

3.11 the insertion method "hot": The technological process of creating a rough surface of the top layer of the road coating by applying a mixture of a mineral mixture (fractionated sand or rubble) or a black crushed stone after laying after styling.

3.12 modified bitumen: A binding, made on the basis of viscous road bitumen by introducing polymers (with or without plasticizers) or other substances to give bitumen of certain properties.

3.13 bridge structure: Road Engineering Construction (Bridge, overpass, Viaduct, Estakada, Aqueduct, etc.), consisting of one or more spans and supports, launching a transport or pedestrian way over obstacles in the form of watercourses, water bodies, canals, mountain gorges, urban streets , iron and highways, pipelines and communications of various purposes.

3.14 main rocks: Magmatic rocks containing from 44% to 52% silicon oxide ().

3.15 coating surface: The top layer of the road coating, which contacts transport.

3.16 polymer-bitumen binder (PBV): The viscous road bitumers modified by polymers.

3.17 full Pass of Mineral Material: The amount of material, the size of the grains of which is less than the size of the holes of this sieve (the amount of material passing during sifting through this sieve).

3.18 full residue of mineral material: The amount of material, the grain size of which is greater than the size of the holes of this sieve (the amount of material that has not passed during sifting through this sieve).

3.19 row (styling band): Road surface element laid in one work shift or working day.

3.20 segregation (bundle): Local change in the particle size composition of mineral materials of the mixture of cast and the content of the binder in the original homogeneous mixture, due to the individual movements of the particles of large and fine fractions of the mineral part, during the storage process of the mixture or its transportation.

3.21 layer (constructive layer): Construction element of the road surface consisting of a material of one composition. The layer can be laid in one or more rows.

3.22 mixture asphalt concrete casting hot: The injection molding mixture, with a minimum residual porosity consisting of a grain mineral part (rubble, sand and mineral powder) and a viscous oil bitumen (with polymer or other additives, or without them) as a binder, the laying of which is made on casting technology, without sealing , at a mixture temperature of at least 190 ° C.

3.23 mid-medium rocks: Magmatic rocks containing from 52% to 65% silicon oxide ().

3.24 stationary Kohler: A special stationary bunker-drive for homogenization and storage of the mixture by cast after the end of its production process, equipped with heating, a mixing system, a shipping device and temperature control devices of the mixture of the mixture.

3.25 convertibility: The qualitative characteristic of a mixture of cast, determined by the efforts that provide its homogenization with stirring, its suitability for transportation and laying. Includes such properties of the mixture of cast, as fluidity, suitability to laying on casting technology, the spreading rate over the surface.

3.26 black crushed stone: Fractionated crushed stone treated with bitumen, located in unrelated state and intended for creating a surface rough layer.

4 Classification

4.1 Mixtures cast and asphalt concrete on their basis, depending on the greatest grain size of the mineral part, the contents of rubble and destination in them are divided into three types (see Table 1).

Table 1

5 Technical requirements

5.1 Mixtures cast must be prepared in accordance with the requirements of this Standard for the Technological Regulations, approved by the Independent Manufacturer.

5.2 The grain compositions of the mineral part of the mixtures of cast and asphalt concrete on their basis, when using round sieves, must correspond to the values \u200b\u200bspecified in Table 2.

table 2

The grain compositions of the mineral part of the mixtures of cast and asphalt concrete on them, when using square sieves, are shown in Appendix B.

Graphs of the allowed granulometric compositions of the mineral part of the mixture of cast are given in Appendix B.

5.4 Indicators of the physico-mechanical properties of mixtures of cast and asphalt concrete concrete on their basis, the temperature of production, storage and laying must be complied with the specified in Table 3.

The physico-mechanical properties of mixtures of cast and asphalt concrete on their basis are determined in accordance with GOST R 54400.

Table 3.

5.5 The maximum temperature indicated in Table 3 is valid for any location in the mixing mechanism and storage and transportation containers.

5.6 The values \u200b\u200bof the depth of the depth of the stamp depending on the purpose and place of use of mixtures of cast and asphalt concrete on them are indicated in Table 4.

Table 4.

The depth depth of the stamp at a temperature of 40 ° C for the first 30 minutes of the test and (if necessary) increase the indicator of the depth of the stamp over the next 30 minutes, the tests are determined in accordance with GOST R 54400.

5.7 Mixtures cast must be homogeneous. The homogeneity of the mixtures of the cast is estimated in accordance with GOST R 54400 by the coefficient of variation of values \u200b\u200bof the indicator of the depth of the dummy of the stamp at a temperature of 40 ° C for the first 30 minutes of the test. The coefficient of variation for mixtures of cast types I and II should be no more than 0.20. This indicator for a mixture of cast type III is not normalized. The indicator of the homogeneity of the mixture of the cast is determined with the frequency at least than monthly. The indicator of the homogeneity of the mixture of the cast is recommended for each manufactured composition.

5.8 Requirements for materials

5.8.1 For the preparation of litter mixtures, crushed stone obtained by crushing of dense rocks is used. Crushed stone from dense rocks, which is part of the mixtures of cast, must comply with the requirements of GOST 8267.

For the preparation of mixtures of cast, crushed stone fractions from 5 to 10 mm are used; Over 10 to 15 mm; Over 10 to 20 mm; Over 15 to 20 mm, as well as mixtures of these fractions. There should be no extraneous clogging impurities in the crushed.

Physical and mechanical indicators of rubble must comply with the requirements specified in Table 5.

Table 5.

5.8.2 For the preparation of mixtures of cast apply sand from sefs of crushing, natural sand, as well as their mixture. Sand must comply with the requirements of GOST 8736. During the production of mixtures of cast for the upper layers of coatings of roads and bridge structures, sand from sefs of crushing or a mixture with natural sand, containing no more than 50% of natural sand. The grain composition of natural sand in size should correspond to the sand not lower than the shallow group.

Physico-mechanical sand indicators must comply with the requirements specified in Table 6.

Table 6.

5.8.3 The mineral powder is used to prepare the mixtures of cast and activated, corresponding to the requirements of GOST R 52129.

The permissible powder content of sedimentary (carbonate) rocks from the total mass of the mineral powder should be at least 60%.

It is allowed to use technical dust of the main and medium rocks from the dust collecting system of mixing plants in an amount of up to 40% of the total mass of the mineral powder. The use of hydroxide dust of acidic rocks is allowed under the condition of its content in the total mass of the mineral powder in an amount of no more than 20%. The values \u200b\u200bof dust indicators of the UROS should comply with the requirements of GOST R 52129 for MP-2 powder.

5.8.4 For the preparation of mixtures of litter as a binder, bitumens oil road viscous brands BND 40/60, BND 60/90 according to GOST 22245, as well as modified and other bitumen binders with improved properties on regulatory and technical documentation, coordinated and approved by the Customer in The established manner, subject to ensuring the quality indicators of the asphalt concrete cast from these mixtures at no lower than those set by this standard.

5.8.5 When using asphalt concrete, cast on bridge structures, in the upper and lower layers of road coatings with high intensity intensity and calculated loads on the axis should be used by polymers of bitumen. In these cases, preference should be given to polymer-bitumen binders based on styrene-styrene-styrene-styrene-styrene-styrene-styrene styrene styrene and PBW 60 according to GOST R 52056.

5.8.6 When designing mixtures of cast type of binder should be appointed taking into account the climatic features of the construction area, the appointment and place of use of the structural layer required (projected) deformative properties of the mixtures of cast and asphalt concrete properties based on them. The suitability of the binder to achieve the required functional characteristics of museums of cast and asphalt concrete on them is confirmed in the process of mandatory and optional tests specified in GOST R 54400.

5.8.7 In the production of laying mixtures, it is permissible to use binders modified by administering to their composition of deflements that allow reduced production temperatures, storage and laying of laying mixtures by a value from 10 ° C to 30 ° C without deteriorating their convenientness. The introduction of deflements is produced in bitumen (polymer-bitumen astringent) or in a mixture of litter in the process of its production on the asphalt mixing unit.

5.8.8 The specified composition of the mixture of cast should be provided in the process of its production on the asphalt mixing unit. It is forbidden to change the composition of the mixture by cast after the completion of the process of its production by administering to the mobile crossover of binder, petroleum products, plasticizers, resins, mineral materials and other substances in order to change the viscosity of the mixture of cast and physicomechanical characteristics of cast asphalt concrete.

5.8.9 The use of recycled asphalt concrete (asphalt translucent) is allowed as a placeholder in a mixture of cast. At the same time, its content should not exceed a 10% mass fraction of the composition of the mixture by cast for the device of the lower or upper layers of the road surface and the patch repair and a 20% mass fraction of the composition of the mixture by cast for the device of the leveling layer. At the request of the consumer, the permissible percentage of asphalt production content in the mixture of the cast may be reduced. The maximum grain size of rubble contained in the asphalt storage should not exceed the maximum grain size of rubble in the mixture of cast. When designing mixtures of laying with the use of asphalt production, the mass proportion of the content and the properties of the binder in this aggregate should be taken into account.

6 Safety and Environmental Requirements

6.1 When preparing and laying, the mixtures of cast must comply with the general security requirements for GOST 12.3.002 and the requirements of fire safety according to GOST 12.1.004.

6.2 Materials for the preparation of mixtures of cast (crushed stone, sand, mineral powder and bitumen) must comply with the hazard class not higher than IV according to GOST 12.1.007, referring to the nature of the harmfulness and degree of impact on the human body to low-wave substances.

6.3 The norms of extremely permissible emissions of pollutants into the atmosphere during the work of the work should not exceed the values \u200b\u200bestablished by GOST 17.2.3.02.

6.4 The air in the working area in the preparation and laying of mixtures of cast must satisfy the requirements of GOST 12.1.005.

6.5 The specific effective activity of natural radionuclides in the mixtures of cast and cast asphalt concrete should not exceed the values \u200b\u200bset by GOST 30108.

7 Rules acceptance

7.1 Acceptance of wall mixtures produced by parties.

7.2 Party consider any amount of a mixture of cast one type and composition produced at an enterprise on a single mixing unit for one shift, using a variety of single delivery.

7.3 To assess the compliance of mixtures of cast requirements of this standard, acceptance and operational quality control are carried out.

7.4 Acceptance-completed control of the mixture of cast is carried out on each batch. When receiving testing tests, water saturation is determined, the depth of indulgence of the stamp and the composition of the mixture of cast. The indicators of the porosity of the mineral island and residual porosity and the indicator of the specific effective activity of natural radionuclides are determined by selecting the compositions of the mixture by cast, as well as with the change in the composition and properties of the source materials.

7.5 With the operational control of the quality of the mixtures of cast in production, the temperature of the mixture is determined by the mixture in each shipped car, which should not be lower than 190 ° C.

7.6 On each batch of the mixture shipped by a cast consumer issues a quality document containing the following product information:

- the name of the manufacturer and its address;

- the number and date of issuing a document;

- the name and address of the consumer;

- Order number (batch) and the amount (mass) of the mixture of the cast;

- type of mixture by cast (composition number according to the manufacturer's nomenclature);

- temperature of the mixture by cast when shipping;

- the brand of the binder used and the designation of the standard on which it was produced;

- the designation of this Standard;

- Information about the added additives and asphalt frame.

At the request of the consumer, the manufacturer must provide the consumer with complete information about the released batch of products, which includes the receiving and trial and testing data produced during the selection of the composition, in the following indicators:

- water saturation;

- depth of indulgence of the stamp (including an increase in the indicator after 30 minutes);

- porosity of the mineral part;

- residual porosity;

- the homogeneity of the mixture of the cast (according to the results of the tests of the preceding period);

- specific activity of natural radionuclides;

- Granulometric composition of the mineral part.

7.7 The consumer has the right to conduct a control check for the compliance of the mixture supplied by casting the requirements of this standard, observing the sampling methods, the preparation of samples and tests specified in GOST R 54400.

8 Test Methods

8.1 Porosity of the mineral island, residual porosity, water saturation, depth of indulgence of the stamp, composition of the mixture of cast, tensile strength when split cast asphalt concrete is determined according to GOST R 54400.

In the case of use in the selection of grain compositions of square sieves, a set of sieves must be used to determine the grain composition of the mixture;

8.2 Preparation of samples made of mixtures of cast and asphalt concrete on their basis for tests are made according to GOST R 54400.

8.3 The temperature of the mixture of the cast is determined by a thermometer with a measurement limit of 300 ° C and an error of ± 1 ° C.

8.4 The specific effective activity of natural radionuclides is taken by its maximum value in the mineral materials used. This data indicates a document on the quality of the enterprise-supplier.

In the absence of data on the content of natural radionuclides, the enterprise - the manufacturer of the mixture of the module carries out the input control of the materials in accordance with GOST 30108.

9 Transportation and storage

9.1 The prepared mixtures of the cast must be transported to the place of laying in Kohchers. It is not allowed to transport the mixture by cast in car dump trucks or other vehicles in the absence of stirring and temperature maintenance installed on them and the functioning systems.

9.2 Maximum temperature of the mixture by cast during the storage process must comply with the values \u200b\u200bspecified in Table 3, or the requirements of technological regulations for this type of work.

9.3 Mandatory conditions for transportation of mixtures of laying to the place of installation:

- forced mixing;

- elimination of segregation (bundle) mixtures by cast;

- protection against cooling, atmospheric precipitation.

9.4 In the case of long-term transportation or storage of a mixture by cast in stationary flocks on asphalt mixing plants, its temperature should be reduced during the period of the intended storage time. When storing a mixture of a resulting from 5 to 12 hours, their temperature should be reduced to 200 ° C (when using polymer-bitumen binders) or up to 215 ° C (when using viscous oil bitumen). After the end of the storage period, immediately before the production of work on laying, the temperature of the mixture is increased to the permissible values \u200b\u200bindicated in Table 3 or in the technological regulations on this type of work.

9.5 Time that has passed from the production of a mixture by cast on an asphalt mixing unit to a complete unloading of it from a mobile crossbox when laying into a coating should not exceed 12 hours.

9.6 Called mixture is subject to disposal as construction waste in the following conditions:

- exemption of the maximum allowable storage time of the cast mixture;

- unsatisfactory convenientness of the mixture, the loss of the ability to be a molded mixture and the ability to spread on the basis, the crushing (incompleteness), the presence of brown smoke emanating from the cast mixture.

9.7 Measuring instruments tracking the temperature of the cast mixture on the asphalt mixing installation and in Kochra (stationary and mobile) should be calibrated (calibration) with periodicity at least once every three months.

10 instructions for use

10.1 The device of coating from the mixture of the mold is carried out in accordance with the technological regulations approved in the prescribed manner.

10.2 The mixture of cast should be placed exclusively in a liquid or viscous state that does not require seal.

10.3 Laying mixtures of cast should be made at ambient air temperature and underlying structural layer not lower than 5 ° C. It is allowed to use mixtures of cast at ambient temperature to minus 10 ° C for the production of work on the removal of an emergency on the carriageway of roads with asphalt concrete coatings. In these cases, measures should be provided for ensuring sufficient quality of the adhesion of the asphalt concrete cast with the underlying structural layer.

10.4 Mixtures cast for the device of road coatings, sidewalks and patching should be unloaded directly to the surface of the underlying structural layer or waterproofing layer. The surface of the underlying layer should be dry, clean, deemed and must meet the requirements for asphalt concrete and monolithic cement concrete grounds and coatings.

When laying a mixture of cast on a concrete base or asphalt concrete coating prepared by the method of cold milling, it is necessary to pre-process such surfaces with a bitumen emulsion according to GOST R 52128 with a flow rate of 0.2-0.4 l / m in order to ensure proper clutch of the layers. The accumulation of the emulsion in the reduced places of the surface of the base is not allowed. Mandatory is the requirement of the complete decay of the emulsion and evaporation of the moisture formed during the start of laying the mixture by cast. Use to process the surfaces of bitumen instead of a bitumen emulsion is not allowed.

Processing the emulsion of the underlying layer made of cast asphalt concrete is not produced when the lower and upper coating layers are arranged from the cast asphalt concrete.

The processing of the emulsion of the underlying layer of cast asphalt concrete is allowed not to be made at the device of the upper layer from the rubble-mastic asphalt concrete mixture according to GOST 31015 at the time interval between the device layers no more than 10 days, as well as in the absence of traffic in this period by the underlying layer.

10.5 The value of the maximum permissible longitudinal and transverse slopes of the road construction, when using a cast mixture, ranges from 4% to 6%, depending on the characteristics of the specified composition of the mold mixture and its viscosity.

10.6 The mixtures of all types of all types are allowed to be laid as a mechanized manner using a special device for moving the mixture of cast (finisher) and manually. The required disappointment of litter mixtures is achieved by the manufacturer by adjusting the specified composition and the selection of bitumen binders, the introduction of deflements during the production of the mixture by casting, provided that the asphalt concrete is preserved by the cast strength characteristics specified in 5.4. Adjustability control can be made by changing the temperature mode of the mixture by cast during its laying, taking into account the fulfillment of the requirements for the minimum and maximum permissible temperatures of the mixture of cast. The mixture intended for mechanized laying may have an increased viscosity and a lower spreading rate over the surface during unloading.

10.7 The final stage of the road coating device with a casting asphalt concrete layer is a rough surface device, carried out by the insertion method "hot" in accordance with the technological regulations approved in the prescribed manner.

10.8 Physical and mechanical indicators of rubble used for the device of the rough surface of the top layer of the coating of the asphalt concrete casting method "hot" must comply with the requirements given in Appendix A.

Appendix A (recommended). Physical and mechanical indicators of rubble used for the device of the rough surface of the upper layers of the coating of the asphalt concrete of the road cast hot method "hot"

For the device of the rough surface of the upper layers of the coating of the asphalt concrete of the road cast hot method of inserting "hot" using a fractional crushed stone of the erupted rock rocks from 5 to 10 mm, over 10 to 15 mm and a mixture of fractions from 5 to 20 mm according to GOST 8267 with consumption 10 -15 kg / m.

When the low layers of the coatings of the mixtures of cast, in order to further provide adhesion with the upper layers of coatings from all types of sealing asphalt concrete, produced the distribution of the erupted rocks of fractions from 5 to 10 mm "hot" with a flow rate of 2-4 kg / m. It is allowed not to make the sprinkling of the lower layer of rubble when the device of two-layer coatings from the asphalt concrete, subject to the absence of motion along the bottom layer of the coating.

To ensure proper clums of surface treatment with asphalt concrete, it is recommended to use crushed stone treated with bitumen (black crushed stone). The content of bitumen should be selected so as to eliminate its drainage, flipping of rubble or uneven coating of the bitumen of the surface of rubble.

Physical-mechanical indicators of rubble used for the device of the rough surface of the upper layers of the coating from the asphalt concrete molding method must comply with the requirements presented in Table A.1.

Table A.1.

The recommended temperature range of the mixture by cast at the beginning of the distribution process over its surface of grain mineral materials range from 140 ° C to 180 ° C and should be clarified during the work of the work.

For the device of a rough surface of pedestrian walkways, sidewalks and cycling paths use natural fractionated sand with a flow rate of 2-3 kg / m.

The recommended grain composition of natural sand is determined by full residues on the control sines shown in Table A.2.

Table A.2.

It is permissible to use crushed fractionated sand with grain size from 2.5 to 5.0 mm and a flow rate of 4-8 kg / m.

Appendix B (recommended). Full aisles of mineral material when using square sieves

B.1 Full aisles of mineral material when using square sieves in percentage by weight, are shown in Table B.1.

Table B.1.

Table B.2.

Appendix B (recommended). Requirements for the granulometric composition of the mineral part of all types of mixtures

The permitted values \u200b\u200bof the composition of the mineral part for all types of the mixture are located in the zone between the two broken lines depicted on the graphs of the drawings of B.1-V6.

Figure B.1 - Grain composition of type I (round sieve)

Figure B.2 - Grain composition of type I (square sieve)

Figure B.3 - Grain composition of type II mixture (round sieve)

Figure V.4 - grain composition of type II mixture (square sieve)

Figure V.5 - Grain Composition of the Mixture of Type III (Round Sita)

Contractors will make focus on specific time intervals from 9 months to 10 years and above. Dates are determined for road surface, bridges, signal columns, markup, etc.

We are talking about the adjustments in the law on roads and road activities, as well as in certain articles of the Civil Code. The law introduces a new concept - warranty period:

The period of time, during which the contractor, who fulfilled work on the construction, reconstruction, overhaul, repairing the section of the road or artificial structures, provides the customer with their compliance with the requirements for the quality of such works.

The term is calculated from the date of delivery of the vehicles, the means of their arrangement and approaches to artificial structures. People's elected proposes to register in the law warranty period for road surface, bridges, signal columns, markup, etc. So, for residents of highways, the timing:

• for the earth canvas - from 10 years;
• for the founding of road clothing - from 7 years;
• for the lower coating layer - from 5 years;
• for upper coating layer:
  • capital and lightweight improved type - from 4 years;
  • transitional and lowest types - from 3 years.

For bridges, overpasses, tunnels and an overpary, the minimum time will be 8 years old, for road signs - 3 years. Road marking depending on the species should hold at least 9-15 months.

When detecting defects, the warranty period for the element or part of the structure is set again from the moment the shortcomings are eliminated. At the same time, the time spent on the alteration is not taken into account.

As we recently reported, from January 1, the country had to earn a system to accommodate fares on federal general-use tracks. The state would have forced to fulfill the owners and users of trucks with a maximum mass of more than 12 tons. However, the country was not ready for a new collection. The norm will take effect only on November 1, 2014.

Previously, experts from the Ministry of Regional Development announced when there are normal roads in Russia. The head of the department Igor Slyunyev called the Round Fig: 1000 years. It is so much time will be required to create a public road network at the existing pace of construction.

Recall that in 2001 the Government of the Russian Federation approved its decree a federal target program "Development of the Transport System of Russia". It was originally covered by the period until 2010. Subsequently, changes were repeatedly introduced into the document. Now the program is designed until 2015. Among its goals is the development of modern and efficient transport infrastructure, increasing the availability of the transport complex services for the population, improving the integrated safety and stability of the transport system.

Add, relationships arising from the use of roads and road activities regulates the Federal Law of 08.11.2007 N 257-FZ.

In order for the bill of deputy Vasilyeva to become a law, it should approve a federal assembly and sign - the President of the Russian Federation, after which the document must be officially published. Federal laws enter into force on the expiration of ten days after official publication, if another order is not established by the laws themselves.