Curbstone BR 100.30.15 (two-layer)

The side stone is used for the improvement of roadways and footpaths. With its help, you can clearly delineate the zones, while simultaneously creating a solid foundation that will protect the road from destruction by water.

It is thanks to the use of side stones that it is possible to maintain a certain shape of the roadway or footpath, giving the area an aesthetic and attractive appearance.

Our company is engaged in the production of concrete curb stones of several varieties:

• road;
• trunk;
• garden.

Depending on the purpose, the concrete curbstone may have different shape, sizes and even color. Several shades of products allow you to create an exceptional site design at a low cost. After all, we have presented products at the most reasonable price.

The main stone is thicker, which makes the road strong and resistant to any mechanical factors. Rain, snow, mudflows and much more - all these are the direct reasons for the deterioration of product quality during operation.

Garden stone is thinner and is used for the improvement of walking paths, flower beds and recreation areas.

Our production

Thanks to new technology vibrocompression of a semi-dry mixture, the side stone is strong and durable. This method is most widely used due to the high performance of the final product.

The second method for the production of boards is vibrocasting into a mold, but due to the increased moisture content in it, the performance characteristics of the concrete product deteriorate with each new freezing cycle.

Pressing the same mixture eliminates the possibility of moisture formation, thereby preventing the likelihood of its freezing, and, consequently, destruction every year. Concrete side stones made by vibrocompression have a long service life and always have an attractive appearance.

Frost resistance of our products is at least 200 cycles, which is about 12 years. High performance of concrete products is achieved through the use of a high-performance German line UF-051. The capacity of one such installation is up to 7 thousand units. per day.

Our assortment

Our side stone complies with GOST 6665-91. However, the board is not our only product. We also manufacture other types of materials. This and, and storm drains, and pedestals, and bricks and much more. In total, we have more than 35,000 types of products with a productivity per shift of more than 2,000 pieces.

You can always buy a curbstone in any quantity from us, besides, in our warehouse we always have a "stock" of finished products from 15 thousand units of each type. And the presence of our own large fleet of vehicles allows us to carry out prompt delivery in Moscow and the whole Moscow region. We can carry out loading, delivery and unloading of building materials in short time thus saving you time and money.

BR 100.30.18	size LxHxW	1000 x 300 x 180 mm	weight 120 kg	Price 280 rubles.
BR 100.30.15	size LxHxW	1000 x 300 x 150 mm	weight 96 kg	Price 220 rubles.
BR 100.20.8	size LxHxW	1000 x 200 x 80 mm		Price 120 rubles.
BR 50.20.8	size LxHxW	500 x 200 x 80 mm		Price RUB 75

Curved side stone ( BK 100.30.21.5 ) - a heavy concrete stone designed to separate the carriageway inside urban areas, protect lawns and green spaces in rounded areas. The use of such curbs effectively prevents the erosion of the roadway, shoulders, and slopes. Often curvilinear borders BK 100-30.21.5 frame city flower beds and park landscape elements, as well as sidewalks made of concrete tiles. In order to better fit into the infrastructure of a metropolis, curb stones can be produced painted. Pigments are added to the concrete, which allow you to create a road fence of any color. Curved stone is used in combination with ordinary (BR) to create a full-fledged enclosing covering of any shape. Curb stones are distinguished by their strength and fracture density, since they must withstand significant loads. The norms and standards for the manufacture of curved curbstone are contained in GOST 6665-91. Production methods - vibratory casting and vibropress.

The curved curbstone has a rounded shape with bevels at the top, which allows it to fit perfectly into the curves of the roadway. As a rule, a curved stone BK 100-30-21.5 is not reinforced.

The curb is durable and frost-resistant - the most important characteristics for road elements. In order for the side stone to be frost-resistant, sand is specially added to the concrete, which gives the material both weight and strength at the same time. The frost resistance concrete grade for curbs BK 100-30-21-5 depends on the area of ​​their application and varies from F100 to F300. The low water absorption of concrete guarantees that the curb does not wash out during a long service life.

Another important characteristic the border is a uniform color. So that the stones do not differ in shades and do not spoil the color composition of the entire border, they are evenly colored throughout the entire depth during the manufacturing process.

Product marking

The symbol of a stone consists of alphanumeric groups separated by a dash. Indicate the type of stone, length, height and width of the BK stone in centimeters

As an example of marking a side stone, consider (1000x 300x 210 mm), where:

• БК - type of stone - side curved;
• length and height in mm;
• radius - 5000 mm.

The markings of the curb stones are applied to the end face of at least 10% of the stones from the batch.

Product quality control

There should be no cracks in the curved curbstone, except small amount barely noticeable surface cracks no more than one tenth of a millimeter wide.

Deviations in the geometric parameters of the curb stone in length can be no more than ± 6, in width ± 4, in height ± 5 mm. Straightness deviations BK 100.30.21.5 are possible no more than 6 mm.

On the acceptance tests are tested indicators:

• compressive strength class of concrete;
• transfer and tempering strength of concrete;
• strength of welded joints;
• accuracy of geometric parameters;
• the presence and width of possible cracks;
• concrete surface categories.

Party curved curb stones must accompany a document from the manufacturer (technical passport), which certifies the quality of the curb stones БК 100-30.21.5. V data sheet indicate:

• batch number of curved stones, conventional designation, total quantity in pieces;
• test results;
• concrete grade in terms of strength and tempering strength of concrete;
• concrete grade for frost resistance;
• designation of GOST.

Transport and storage

The delivery of the road curb is most often carried out by open on-board vehicles with a carrying capacity of 1.5 to 30 tons, while the curb, tied with a stretch tape, must be stacked on pallets in advance to avoid damage. For the same reason, it is worth making sure that the unloading does not go in bulk or dumping.

The curbstone may not be packed in pallets, but simply tied with curb tape and placed in the body on wooden spacers. Unloading the curb is carried out both manually and by a loader or crane with a significant mass of reinforced concrete products.

The side stones BK 100-30-21.5 are stored in stacks no higher than 2 meters, on wooden pads, sorted by brands and sizes.

To achieve the goal - that is, the reliable separation of roadways from sidewalks and lawns with the help of a curbstone, it must be placed on a specially prepared base - crushed stone, concrete or sand. In this case, with correct installation, the road entrance curb will perform its direct function and will serve for a long time.

GOST 6665-91 acts on side reinforced concrete and concrete stones, made of heavy and light fine-grained concrete, which are used to separate roads and roadways from lawns, sidewalks, etc. The standard regulates the brand, shape, and class of concrete stones in terms of compressive strength (control is carried out in accordance with GOST 18105). GOST 6665-91 is valid from 01.01.92.

GOST 6665-91

Group W18

STATE STANDARD OF THE UNION OF SSR

STONES CONCRETE AND REINFORCED CONCRETE SIDES

Technical conditions

Concrete and reinforced concrete curbs.

OKP 57 4612; 58 4621

Date of introduction 1992-01-01

INFORMATION DATA

1. DEVELOPED by the Moscow Construction Committee and the Glavmosarkhitektura at the Moscow City Executive Committee

Ministry of Housing and Communal Services of the RSFSR

DEVELOPERS

V. G. Maidel (head of the topic), Cand. tech. sciences; E.M. Goldin, Cand. tech. sciences; L.V. Gorodetsky, Cand. tech. sciences; G.M. Khutortsov, Cand. tech. sciences; G.I. Korotkikh; N.K. Kozeeva; L.P. Shchepin; R.M. Koltovskaya; I. N. Nagornyak

2. SUBMITTED by the Moscow Construction Committee under the Moscow City Executive Committee

3. APPROVED AND PUT INTO EFFECT by the Decree of the State Construction Committee of the USSR dated 03.04.91 N 13

4. REPLACE GOST 6665-82

5. REFERENCE REGULATORY AND TECHNICAL DOCUMENTS

	Item number, application
GOST 3282-74
GOST 3344-83
GOST 3560-73
GOST 5781-82	1.3.18; 1.3.19; Appendices 2, 3
GOST 6727-80	1.3.18; 4.1; Appendix 2
GOST 7473-85
GOST 8267-82
GOST 8736-85
GOST 8829-85
GOST 9238-83
GOST 10060-87
GOST 10178-85
GOST 10180-90
GOST 10181.0-81
GOST 10181.1-81
GOST 10181.3-81
GOST 10260-82
GOST 10834-76	Appendix 4
GOST 10884-81
GOST 10922-90
GOST 12730.3-78
GOST 13015.0-83
GOST 13015.1-81
GOST 13015.2-81
GOST 13015.3-81
GOST 13015.4-84
GOST 13302-77	Appendix 4
GOST 14098-85
GOST 15150-69	Introductory part
GOST 17624-87
GOST 17625-83
GOST 18105-86
GOST 18343-74
GOST 20259-80
GOST 22362-77
GOST 22690-88
GOST 22904-78
GOST 23009-78
GOST 23279-85
GOST 23732-79
GOST 23858-79
GOST 24211-80
GOST 25592-91
GOST 25818-91
GOST 26134-84
GOST 26433.0-85
GOST 26433.1-89
GOST 26633-85	Introductory part, 1.3.10, 1.3.11, 1.3.14,
GOST 27006-86
GOST 28570-90
OST 13-287-85	Appendix 4
OST 18-126-73	Appendix 4
TU 6-02-696-76
TU 6-03-7-04-74
TU 6-36-0204229-625-90	Appendix 4
TU 13-0281036-05-89
TU 81-05-75-74
SNiP 2.01.01-82

This standard applies to concrete and reinforced concrete side stones (hereinafter referred to as stones) made of fine-grained (sandy) and heavy concrete in accordance with GOST 26633 in a climatic version of UHL in accordance with GOST 15150, designed to separate the carriageway of streets and roads from sidewalks, lawns, platforms and etc.

1. TECHNICAL REQUIREMENTS

1.1. Stones should be made in accordance with the requirements of this standard and technological documentation approved in the prescribed manner.

1.2. Basic parameters and dimensions

1.2.1. Stones are divided into types:

BR - straight privates;

BU - straight lines with broadening;

BUP - straight lines with intermittent broadening;

BL - straight lines with a tray;

BV - entrance;

BC - curvilinear.

1.2.2. The grades, shape and class of concrete in terms of compressive strength of stones must correspond to those indicated in Table 1, and the dimensions and indicators of the material consumption of stones must correspond to Appendix 1.

Stamps and shapes of stones

Table 1

		Compressive strength class of concrete	Background	Appointment of stones
BR600.30.15-A-IV
				To separate the carriageway of streets and roads from sidewalks, lawns, areas - public transport stops and a separate tramway track
BR600.30.18-A-IV
				For separating the carriageway from sidewalks at exits, with embankments less than 2 m high and dividing strips
BR600.45.18-A-IV (A-V)
				For separating the carriageway from sidewalks in tunnels, ramp parts of tunnels and at ramps with embankments more than 2 m high
BR600.60.20-A-IV (A-V)
				For separating walkways and sidewalks from lawns
				To separate the carriageway of intra-block thoroughfares from sidewalks and lawns
				For separating the carriageway of streets, roads from sidewalks and lawns
BUP600.30.32-А-IV
				For separating the carriageway of streets, roads from sidewalks and lawns and arranging safety lanes
				For separating the carriageway of intra-block thoroughfares when arranging entrances to sidewalks in combination with stones of brands BR100.30.15 and BR300.30.15
				For separating the carriageway of streets and roads when arranging entrances to sidewalks in combination with stones of brands BR100.300.18 and BR300.30.18
BK100.30.18.12 BK100.30.18.15				For separating the carriageway of intra-block thoroughfares from sidewalks and lawns on curves in combination with stones of brands BR100.30.15 and BR300.20.15
BK100.30.21.12				For separating the carriageway of streets and roads from sidewalks and lawns on curves in combination with stones of brands BR100.30.18 and BR300.30.18
Stone ramp				To interface the surfaces of bicycle paths and sidewalks with heavy traffic for children and wheelchair and others with a covering of carriageways of streets and roads at intersections

Note. The length of the ramp () for pavement coverings made of prefabricated slabs is taken as a multiple of the size of the slabs, and other sizes - depending on the grade of the stone.

Allowed by agreement with the institute "Mosinzhproekt" of the Glavmosarkhitektura of the Moscow City Executive Committee and the consumer, other shapes and sizes of stones, as well as changes in the reinforcement of stones without increasing the consumption of reinforcing steel.

1.2.3. The upper, lower and vertical edges of the stones must be mutually perpendicular.

It is allowed to manufacture stones with a technological slope of non-front vertical edges up to 5%, rounding of front edges with a radius of up to 5 mm and non-front ones - up to 15 mm or chamfers up to 10 mm wide.

1.2.4. Reinforcement of stones is given in Appendix 2, with a feasibility study, the reinforcement option given in Appendix 3 is allowed.

1.2.5. Stones with a length of 1.0 m from fine-grained concrete should be made using vibrocompression technology or other technology that provides physical and mechanical characteristics in accordance with this standard.

Stones with a length of 3.0 and 6.0 m should be made of heavy concrete, reinforced.

Note. Stones with a length of 1.0 m from heavy concrete are allowed to be made until 01.01.96.

1.2.6. Stones are marked with grades in accordance with GOST 23009.

A stone mark consists of alphanumeric groups separated by a dash.

The first group contains the designation of the type of stone, the length, height and width of the stone in centimeters, the radius of curvature in meters for curved stones; the second is the class of prestressing reinforcement.

An example of the symbolic designation of a stone of the BR type with a length of 1000 mm, a height of 300 mm and a width of 180 mm:

The same, type BK 1000 mm long, 300 mm high and 180 mm wide with a radius of curvature of 8 m:

The same, type BR 6000 mm long, 300 mm high and 180 mm wide with tension-free reinforcement class A-I V:

BR600.30.18-AIV

1.3. Specifications

1.3.1. The stones must be strong and crack-resistant.

Reinforced stones when tested for strength and crack resistance by loading must withstand the control loads given in Table 2.

table 2

Stone mark
	for strength testing	crack resistance testing
BR600.30.15-А-IV
BR600.30.18-А-IV
BR600.45.18-А-IV
BR600.45.18-A-V
BR600.60.20-А-IV
BR600.60.20-А-V
BUP600.30.32-А-IV

1.3.2. Concrete of stones of BR100.20.8 grade must correspond to the compressive strength class of concrete not less than B22.5, and concrete of other grades of stones - not less than B30.

The class of concrete for tensile strength in bending is assumed to be not less than 3.2 for stones of the BR100.20.8 grade and not less than 4.0 for other grades.

1.3.3. The value of the normalized tempering strength of fine-grained concrete should be 90% of the concrete's compressive strength class and the concrete's tensile flexural strength class at any time of the year.

The value of the normalized tempering strength of heavy concrete should be 90% of the class of concrete for compressive strength and of the class of concrete for tensile bending strength in the cold season and 70% in the warm season.

Note. The periods of the year are taken, starting and ending with the months characterized by the average monthly temperature of the outside air in accordance with SNiP 2.01.01 and GOST 13015.0.

The transfer of the compression forces to the concrete (release of the tension of the reinforcement) should be carried out after the concrete reaches the normalized transfer strength.

The actual strength of concrete must correspond to that required by GOST 18105, depending on the rated strength and indicators of the actual uniformity of concrete strength.

1.3.4. The frost resistance grade of concrete is taken according to the construction project, but not lower than that indicated in Table 3, depending on the design temperature of the outside air of the coldest five-day period of the construction area and is indicated in the order for the manufacture of stones.

Table 3

1.3.5. Water absorption of concrete stones should not exceed by weight,%:

6 - for stones made of fine-grained concrete;

5 "heavy"

1.3.6. The selection of the concrete composition is carried out in accordance with the requirements of GOST 27006 and recommendations, manuals and methods of research institutes, approved in the prescribed manner.

The water-cement ratio (W / C) should be no more than 0.40.

1.3.7. Concrete mixtures are prepared in accordance with GOST 7473 using air-entraining additives.

Concrete mixtures for heavy concrete with a workability grade P2 or P3 with a mobility of not more than 12 cm should be prepared with the obligatory use of plasticizing additives.

1.3.8. The volume of entrained air in concrete mixtures with the use of air entraining additives should be from 4 to 5%.

1.3.9. To prepare the concrete mixture, use no additive Portland cement, Portland cement with mineral additives up to 5% or Portland cement for concrete of road and airfield pavements of grade no lower than 400, containing no more than 5% MgO (magnesium oxide) in the cement clinker and no more than 8% CA (tricalcium aluminate), corresponding to GOST 10178.

1.3.10. The following should be used as aggregates for concrete:

natural enriched and fractionated, as well as crushed enriched sands in accordance with GOST 8736, meeting the requirements of GOST 26633;

rubble from natural stone, gravel and blast-furnace slag in accordance with GOST 8267, GOST 10260, GOST 3344, meeting the requirements of GOST 26633.

For the optimal composition of fine-grained concrete, sands with a fineness modulus of at least 2.2 are used, and for heavy concrete - at least 2.0. Largest size coarse aggregate grains - 20 mm.

1.3.11. In order to save cement for concrete, other materials should also be used - fly ash, slags and ash-and-slag mixtures of TPPs in accordance with GOST 25592 and GOST 25818, which meet the requirements of GOST 26633.

1.3.12. The compressive strength grade of crushed stone must be at least 1000.

1.3.13. The frost resistance grade of crushed stone must be at least F200 and ensure the production of the design grade concrete for frost resistance.

1.3.14. The additives used for the manufacture of concrete mix must meet the requirements of GOST 24211, GOST 26633 and ensure the production of concrete that meets the requirements for frost resistance.

The types and volume (mass) of the added additives are determined empirically, depending on the type and quality of the materials used for the preparation of the concrete mixture, the modes of steaming (hardening) of the concrete.

1.3.15. As a hardening accelerator for concrete mixtures of unreinforced stones made of fine-grained concrete, calcium chloride according to GOST 450 or nitrite-nitrate-calcium chloride according to TU 6-03-7-04 should be used in a volume of up to 3% of the cement mass.

1.3.16. Water for concrete preparation - in accordance with GOST 23732.

1.3.17. During the heat and moisture treatment of concrete, soft hardening conditions (temperature not higher than 70 ° C) should be observed with the maximum rate of rise and decrease in the processing temperature not exceeding 25 ° C / h.

1.3.18. Reinforcing steel should be used to reinforce stones:

as non-tensioned reinforcement - bar hot-rolled periodic section steel of classes А-IV and А-V according to GOST 5781;

as non-tensioned reinforcement, it is allowed to use rod thermomechanically and thermally hardened periodic profile steel of classes At-IV and At-V in accordance with GOST 10884;

as non-tensioned reinforcement - hot-rolled bar steel of classes A-III and A-I in accordance with GOST 5781 and ordinary reinforcing wire of periodic profile of class Вр-I in accordance with GOST 6727;

for mounting hinges, hot-rolled smooth bars made of steel of class A-I stamps VSt3sp2 and VSt3ps2 with a diameter of 6-12 mm in accordance with GOST 5781.

1.3.19. When the design winter temperature is below minus 40 ° C, it is prohibited to use steel grade ВSt3ps2 for mounting hinges in accordance with GOST 5781.

1.3.20. The values ​​of stresses in prestressing reinforcement, controlled after the end of tension on the stops, should be:

695.8 MPa (7100 kgf / cm) - for fittings of class A-V;

499.8 MPa (5100 kgf / cm) - "" "A-IV.

The deviations of the stress values ​​should not exceed when tensioning the reinforcement:

± 88.2 MPa (± 900 kgf / cm) - by electrothermal method;

5, + 10% - mechanically.

1.3.21. Welded reinforcement products must comply with GOST 10922 and GOST 23279.

1.3.22. Types, designs and dimensions of welded joints of reinforcement - according to GOST 14098.

1.3.23. The values ​​of the actual deviations of the geometrical parameters of the stones should not exceed the limit values ​​indicated in Table 4.

Table 4

Geometric parameter deviation name	The name of the geometric parameter	Prev off
Deviation from linear dimension	Length of stones:
	cv. 200 to 500
	along the top edge
	by reason
Deviation from the straightness of the profile of the upper surface along the entire length	Stone length:
Deviation from the perpendicularity of the end and adjacent faces at the height of the stone:

1.3.24. For reinforced stones, the deviation from the concrete cover thickness should not exceed ± 5 mm.

1.3.25. The deviation of the profile of the front surface of curved stones from the nominal curvature should not exceed 5 mm.

1.3.27. Cracks on the surface of stones are not allowed, except for surface cracks no more than 0.1 mm wide and up to 50 mm long, in an amount of no more than 5 pcs. per 1 m of the surface of reinforced heavy concrete stones.

1.4. Marking

Marking should be applied with indelible paint on the end face of at least 10% of stones from the batch in accordance with GOST 13015.2.

In the grade of stones with a length of 3.0 and 6.0 m, their mass should be additionally indicated.

2. ACCEPTANCE

2.1. Stones are accepted in batches in accordance with GOST 13015.1 and this standard.

2.2. Stones are accepted:

according to the results of periodic tests - in terms of strength, crack resistance, frost resistance, water absorption;

according to the results of acceptance tests - in terms of strength (class of concrete in terms of compressive strength, transfer and tempering strength), compliance of reinforcement products with this standard, strength of welded joints, accuracy of geometric parameters, thickness of the concrete cover to reinforcement, crack opening width, concrete category surfaces, marks for workability of concrete mix, volume of entrained air of concrete mixes with air-entraining additives.

2.3. Periodic loading tests of prestressed stones to control their strength and crack resistance, as well as to determine the tensile strength of concrete in bending, are carried out before the start of mass production of stones and later - when structural changes are made to them, the manufacturing technology and the quality of materials are changed in accordance with the requirements of GOST 13015.1.

In the process of mass production of stones, tests for crack resistance by loading, as well as tensile strength in bending, are carried out at least once every 6 months.

2.4. Stone concrete for frost resistance and water absorption is tested during the development of production, changing the nominal composition of concrete, technology, type and quality of materials, but at least once every 6 months.

2.5. The workability of the concrete mixture is checked at least once a shift.

2.6. The volume of entrained air in concrete mixtures with air entraining additives is checked at least once per shift.

2.7. Stones in terms of the accuracy of geometric parameters, the thickness of the concrete cover to the reinforcement, the location of the reinforcement, the presence of mounting loops, the category of the concrete surface and the width of the opening of technological cracks should be taken based on the results of random inspection in accordance with Table 5 for stones made of heavy concrete and in accordance with Table 6 - for stones made of fine-grained concrete, made by the vibrocompression method.

Table 5

Lot size	first sample	second sample	Rejection number
			for the first sample	for two samples
91 to 150

Table 6

Lot size	Sample size	Rejection

The lot of stones not accepted according to the results of sampling must be accepted by the piece. In this case, the acceptance of stones should be carried out according to indicators for which the party was not accepted.

The possibility of using stones that do not correspond in terms of strength and frost resistance is determined by the design organization.

2.8. The control of the concrete strength of the stones is carried out in accordance with GOST 18105.

2.9. The consumer has the right to carry out a control check of the compliance of the stones specified in the order with the requirements of this standard.

2.10. The quality document is in accordance with GOST 13015.3. In the quality document, it is necessary to enter the concrete grade in terms of frost resistance and the indicators of water absorption of concrete.

At the request of the consumer, the results of control tests of stones for strength and crack resistance in accordance with GOST 8829 are entered into the quality document.

3. CONTROL METHODS

3.1. Testing of stones by loading to control their strength and crack resistance is carried out in accordance with GOST 8829.

The layout and position of the stone during testing are shown in Fig. 1 and in Table 7.

Table 7

Stone mark	Stone position when tested
BR600.30.15-А-IV
BR600.30.18-А-IV
BR600.45.18-A-IV (A-V)
BR600.60.20-A-IV (A-V)

The maximum crack opening width when tested for strength and crack resistance should not exceed 0.2 mm.

The loading test of the stones is carried out after the stones have reached their compressive strength at 28 days of age.

3.2. The compressive and tensile strength of concrete in bending should be determined in accordance with GOST 10180 or GOST 17624, or GOST 22690.

In the manufacture of stones by the method of vibrocompression, leading to a change in the composition of concrete, a correction factor for the strength of concrete of control samples is taken, which is established experimentally in accordance with the requirements of GOST 10180. In this case, the correction factor should be taken at least 1.

3.3. Frost resistance of concrete is determined according to GOST 10060 or GOST 26134 by saturating concrete samples of stones before testing with a 5% aqueous solution of sodium chloride.

At the same time, it is allowed to reduce the compressive strength of concrete samples by no more than 5% and loss of their mass by no more than 3%.

3.4. The water absorption of concrete stones is determined in accordance with GOST 12730.3.

3.5. The workability of the concrete mixture is determined in accordance with GOST 10181.0 and GOST 10181.1.

3.6. The volume of entrained air in the concrete mixture with water-entraining additives is controlled in accordance with GOST 10181.0 and GOST 10181.3.

3.7. Inspection of welded reinforcement products should be carried out in accordance with GOST 10922 and GOST 23858.

3.8. The tensile force of the reinforcement, controlled at the end of the tension, is measured in accordance with GOST 22362.

3.9. The dimensions and position of reinforcing products in the stone, the thickness of the concrete cover to the reinforcement should be determined in accordance with GOST 17625 or GOST 22904.

In the absence of the necessary instruments, it is allowed to determine the specified parameters by cutting the grooves and exposing the stone reinforcement, followed by filling the grooves and places of reinforcement outcrops with fine-grained concrete or concrete from which the stone is made.

3.10. The dimensions, deviations from the straightness and perpendicularity of stones, the width of the opening of technological cracks, the dimensions of shells, sagging and near concrete should be checked by the methods established by GOST 26433.0 and GOST 26433.1.

The length of the curved stones is measured along the upper edge of the convex side, and the deviation of the profile of the front surface from the nominal curvature is checked with a template.

4. TRANSPORTATION AND STORAGE

4.1. Stones are transported by any type of transport in accordance with the requirements of GOST 9238 and "Technical conditions for loading and securing cargo."

Stones in open wagons and on trucks should be transported in packs of containers in accordance with GOST 20259 or on pallets in accordance with GOST 18343 with bandaging with a steel tape in accordance with GOST 3560 or wire in accordance with GOST 3282, ensuring the rigid fixation and safety of the stones.

4.3. Stones should be stored in the finished product warehouse sorted by brand in stacks or bags up to 2 m high.

4.4. Stones in stacks must be placed on wooden pads with a thickness of at least 30 mm according to TU 400-1-225 or pads made of other materials that ensure the safety of stones, located vertically one below the other at a distance of 0.2 of the length of the stone from the end. The bottom row of stones should be placed on cross-pads with a minimum width of 80 mm.

ANNEX 1

Mandatory

DIMENSIONS AND INDICATORS OF MATERIAL CAPACITY OF STONES

1. The sizes of stones are given:

	type BR100

	BR100.20.8 brand
	type BU300
	brand BUP600.30.32-AIV
	type BL300

Notes:

1. On the non-front vertical surface of stones, it is allowed to make a caisson-type recess with a depth of not more than 50 mm, while the thickness of the stone must be at least 80 mm.

2. It is allowed, upon the order of the consumer, to make stones of the BR100.20.8 brand in lengths of 0.6 and 0.8 m.

3. In the course of a feasibility study, it is allowed to manufacture stones of types BR100 and BV100 face down with the installation of mounting loops in accordance with Appendix 3.

4. It is allowed to manufacture stones of types BR300 and BR600 with end faces having vertical ridges on one side and grooves on the opposite side.

5. It is allowed to manufacture stones of the BV100 and BK100 types with rounding of the front part with a radius of up to 30 mm.

6. By agreement of the consumer with the developer of this standard, it is allowed to manufacture stones of the types BR100, BR300 and BK100 with intermittent broadening.

7. Indicators of material consumption are given in table.8.

Note. It is allowed to make stones with curvature of the front part with a radius of 30 mm.

Material consumption indicators

Table 8

	Consumption of materials
Stone mark		Steel, kg
		on a stone	for 1 m of concrete
BR600.30.15-А-IV
BR600.30.18-А-IV
BR600.45.18-А-IV
BR600.45.18-A-V
BR600.60.20-А-IV
BR600.60.20-А-V
BUP600.30.32-А-IV
BK100.30.18.12
BK100.30.18.15
BK100.30.21.12

APPENDIX 2

Mandatory

Reinforcement of stones

1. Reinforcement of stones with a length of 3 m is shown in Fig. 12, 14, 15, 17, and stones with a length of 6 m - in Fig. 13 and 16; rationing details are shown in Fig. 18.

2. Reinforcement products are shown in Fig. 19-24 and in table 9.

3. Specification of reinforcing products, steel consumption per stone and per one reinforcing product are given in Tables 10 and 12.

Reinforcement of stones of grades BR300.30.15, BR300.30.18, BR300.45.18

and BR300.60.20

Note. It is allowed not to install the spirals Sp1 with a guaranteed absence of cracks in the concrete at the ends of the slabs.

Note. It is allowed not to install the spirals Sp1 with a guaranteed absence of cracks in the concrete at the ends of the stones.

Note to Figure 19-21. It is allowed to change the pitch of the transverse bars, provided that the equivalent section strength is ensured.

Table 9

Product brand

Table 10

Stone mark

Selected

BR600.30.15-А-IV BR600.30.18-А-IV

BR600.45.18-А-IV

BR600.45.18-A-V

BR600.60.20-А-IV

BR600.60.20-А-V

BUP600.30.32AIV

Table 11

Product brand		Diameter, mm	Length, mm		Overall length, m	Sampling steel
						Diameter, mm		Product weight,
Selected

Table 12

Steel consumption per stone, kg

Reinforcing steel according to GOST 5781

Reinforcing steel according to GOST 6727

Stone mark

Class A-IV

Class A-III

Diameter, mm

Diameter, mm

Diameter, mm

Diameter, mm

Diameter, mm

BR600.30.15-А-IV BR600.30.18-А-IV

BR600.45.18-А-IV

BR600.45.18-A-V

BR600.60.20-А-IV

BR600.60.20-А-V

BUP600.30.32-А-IV

Note. Replacement in stones of brands BR300.30.15, BR300.30 is allowed. 18, BU300.30.29, BU300.30.32, BUP300.30.29, BUP300.30.32 hot-rolled bar rebars class A-III with a diameter of 6 mm on a reinforcing wire of a periodic profile Вр-I with a working section area equivalent in strength to class A-III.

APPENDIX 3

STONE REINFORCEMENT OPTION

1. Installation of mounting loops for stones of types BR100 and BV100 is shown in Fig. 25.

Table 14

Specification of reinforcement products per stone

Stone mark			Selected

Table 15

Steel consumption per one reinforcing product

Product brand		Diameter, mm	Length, mm		Total length,	Weight, kg	Sampling steel
								Weight pos., Kg	Product weight, kg
Individual rods

Table 16

Steel consumption per stone

Stone mark	Reinforcing steel of class A-1 in accordance with GOST 5781, kg
	Diameter, mm

APPENDIX 4

TYPES AND VOLUME OF ADDITIVES USED FOR PREPARING CONCRETE MIXES

Plasticizing (technical lignosulfonates LST according to TU 13-0281036-05 and modified lignosulfonates LSTI - according to OST 13-287, etc.) in a volume of up to 0.2 and 0.25-0.3%, respectively, of the weight of cement in terms of dry matter ; molasses one stripped off post-yeast stillage UPB according to OST 18-126 in the amount of 0.2-0.4% of the mass of cement in terms of dry matter.

Air-entraining (neutralized air-entraining resin (SNV) according to TU 81-05-75, etc.) in the amount of 0.01-0.02% by weight of cement in terms of dry matter.

Plasticizing air-entraining (soap and asidol according to GOST 13302 in a volume of at least 0.02% of the mass of cement, organosilicon fluids GKZh-10 and GKZh-11 according to TU 6-02-696, etc.) in a volume of up to 0.2% of weight of cement in terms of dry matter.

Gas-forming (hydrophobizing liquid 136-41 (b.GKZH-94 according to GOST 10834, etc.) in a volume of up to 0.1% by weight of cement.

Thinner (C-3 - according to TU 6-36-0204229-625) in the amount of 0.3-0.7% by weight of cement in terms of dry matter.

The text of the document is verified by:

official publication

Moscow: Standards Publishing House, 1991

New technologies and materials appear in road construction every year. Achievement recent years became semi-dry vibrocompression. Curbs made by semi-dry vibrocompression have high quality characteristics. Concrete grade, compressive strength, frost resistance are the main quality indicators of curb stones.

The main types of vibropressed curb are main curb, road curb and garden curb. They all have different sizes, characteristics and places of use. Their main functions:

• separate the pedestrian zone from the non-pedestrian zone;
• to separate the carriageway from the rest of the territory;
• to strengthen the structure of paving slabs;
• protect the roadbed and paving slabs from erosion by running water;
• to give a complete architectural look to flower beds and garden areas.

Trunk Curb

The main curbstone, GOST 6665-91, is the largest curbstone from the entire line. The main curb can be of several sizes and, accordingly, different weights:

BR 100.30.18	size LxHxW	1000 x 300 x 180 mm	weight 120 kg
BR 100.45.15	size LxHxW	1000 x 450 x 150 mm	weight 140 kg
BR 100.45.18	size LxHxW	1000 x 450 x 180 mm	weight 190 kg

The main curb is installed on highways between cities, on highways, on bridges and road junctions. Due to the increased strength characteristics, the main curb is more resistant to external factors and tends to resist wear under certain conditions. Prices for the main curb range from 250 rubles per item to 700 rubles per item.

Specifications

Road curb

Vibro-pressed road curb, GOST 6665-91. 90% of all city roads and courtyards are landscaped with this very curb. The lifespan of such a curb is approximately 15-20 years, depending on the location. Today it is an irreplaceable material for road construction in the ratio price- quality. Road curb dimensions:

BR 100.30.15

size LxHxW

1000 x 300 x 150 mm

weight 96 kg

A road curb is installed on city roads, in courtyards, parking areas. The lifespan of a road curb is approximately 15-20 years. Although the technology calculates a different figure, about 40 years. With the frost resistance of the curb stone in 200 cycles, the period should be exactly that, but this does not take into account external factors, for example, such as hitting the curb. You can buy a road curb in Moscow and the Moscow region at prices ranging from 190 rubles to 300 rubles apiece.

Specifications

Garden curb

Garden curbstone GOST 6665-91. Unlike other curbs, it is in demand in private construction. Visually, a vibropressed garden curb can be easily distinguished from a vibrated one, the first one is 3 cm thicker and rougher in structure. Vibro-compressed curb is many times stronger and more stable, as well as a service life of about 15-20 years, in contrast to the same name of the vibrocast method 3-5 years.

BR 100.20.8	size LxHxW	1000 x 200 x 80 mm	weight 36 kg
BR 500.20.8	size LxHxW	500 x 200 x 80 mm	weight 18 kg

The garden curb, due to its size, is ideal for private landscaping. A half-meter curb is convenient to use in cases where you need to install a curb not along straight lines, for example, flower beds that go in a circle or winding alleys, sidewalk paths. Garden curb, also has a decorative function, using a variety of flowers. Prices for a 0.5 m garden curb during the construction season vary in the range of 50-75 rubles apiece, for a meter-long garden curb in the range of 100-130 rubles apiece.

Side stone

Road side stone, garden border GOST 6665-91.

Curb stone - for the construction and improvement of roads, parking lots, lawns, pedestrian zones, park areas, private household farms, etc.

The side stone is a multifunctional element of landscaping. The curbstone strengthens the roadway, separates the roadway from the pedestrian zone (lawns), is used for drainage, directing storm water from the roadway to special spillways, performs a decorative function, plays a huge role in organizing security road traffic... Depending on the field of application and on the functional load, curb stones are divided into two main types: for road construction (road, mainline) and for landscaping (garden curb, sidewalk, lawn curb). In road construction, high-strength side stones are used with a length of 1 to 3 meters, a height of 30 to 45 cm, a thickness of 15-18 cm. (BR 100.30.15, BR 100.30.18, BR 100.45. eighteen). When landscaping areas, a garden curb stone of various colors and sizes is used, it is thinner than a road one, since it is not designed to withstand serious loads and, mainly, has a decorative function. The use of curb stones of various colors can significantly reduce operating costs, completely eliminates the costs associated with the systematic coloring of curbs to give them an aesthetic appearance.

Due to the high demand, the production of curb stones has been mastered at many enterprises of concrete goods. In production, the most widespread method is the method of semi-dry vibrocompression (based on sand-cement concrete), which makes it possible to produce curb stones of various colors, in a large number, with ideal geometry, with high strength and frost resistance. Curb stones are mass-produced, for ease of transportation and prevention of damage, products are packed and stacked on wooden pallets.

The cost of the curbstone is very low due to the low cost of raw materials, high production technology (German equipment - vibropress) and huge competition between manufacturers.

The products are produced by vibrocompression and shipped on returnable pallets.
Delivery is carried out by road transport with a carrying capacity of 18-20 tons.