Road plates GOST 21924.0.84. Reinforced concrete plates for urban coatings. Control and Test Methods

GOST 21924.0-84

Interstate standards

Reinforced concrete plates for urban coatings

IPK Publishing Standards

Interstate standard

Date of administration 01.01.85

This standard applies to reinforced concrete pre-stressed plates and plates with unwired fittings made of heavy concrete and intended for the device for assembly coatings of permanent and time urban roads under the automotive load of H-30 and H-10.

The plates are used for roads in areas with the calculated temperature of the outer air (the middle coolest five days of the construction area of \u200b\u200bSNiP 2.01.01) to minus 40 ° C included.

When using boards in the IVA climatic subarea, additional requirements SNiP 2.03.01 should be taken into account to designs intended for operation in the area.

It is allowed to use data plates for roads in areas with the calculated temperature of the outer air below minus 40 ° C under the compliance of the requirements for SNiP 2.03.01 to the designs intended for operation under these conditions.

The standard does not apply to reinforced concrete plates for internal roads of industrial enterprises, for on-farm roads on SNiP 2.05.07, as well as on reusable plates for temporary roads on construction sites.

1. Types, basic parameters and dimensions

Table 1

Dimensions, plates, mm								Mass plates (reference), t
	Plate thickness H (H1)		l1.	l2.	b1.	b2 (B3)	a6.
	pre-tense	with unwired reinforcement		l.2 / l.3

Note. The mass of the plates is given for concrete of a medium density of 2500 kg / m3.

table 2

h.	h./2	but	b.	from	R.

(Modified edition, change No. 1).

Plates for temporary roads are manufactured without mounting brackets SC1.

In these plates, niche for mounting bracket is allowed not to arrange.

In coordination with the consumer, it is allowed to manufacture plates of types of P and PTs with grooves for annexial mounting in accordance with the features. or with the screws for the collet grip instead of mounting loops and niche devices for them. At the same time, in pre-stressful plates for permanent roads, instead of the mounting loops, the SC1 bracket is required in accordance with the features. (node \u200b\u200b1). The number of holes for collet grippers and their location are determined on the basis of the technology of manufacturing plates and their installation.

The working surface of the plates (the upper surface of the road surface) must have a damage according to the devil. , and the plates made by this surface "up" should be rough (p.).

Notes:

1. It is allowed to manufacture plates with a fan size of no more than 10 mm on the front surface of the plate.

2. It is allowed to manufacture stoves with technological beams in places of installation of mounting loops and a bracket of not more than 5 mm, as well as with technological niches under the brackets of the SC1 depth of 20 mm.

3. Inventory plates for temporary roads are allowed to be manufactured with technological beams not more than 8 mm.

4. It is allowed to manufacture on the active equipment of the plates with a common view other than the specified trait. -, when preserving the overall sizes of the plate and comply with all other requirements established by this standard.

5. For damage plates (damn), changes in the shape of the slabs associated with the technology of their manufacture (the presence and size of the samples, radii of rounding, etc.) are allowed.

6. For plates with unwired reinforcement, the vertical location of the mounting loops is allowed.

7. It is allowed to displace the mounting loops within the niche from the middle of the plate along its face to the position of the mirror replaceable bindings of the loops (sizes butand b.) damn. .

Plates with unknown reinforcement - in GOST 21924.2.

1.5. The plates are made with mounting loops and holes for the collet grip (damn -) or grooves for damaged installation (damn).

The loops should not appear behind the working surface of the face of the plate.

For lifting and installing failed plates, special gripping devices or collet grips should be applied, the construction of which receives the manufacturer in coordination with the consumer and Gosgortkhnadzor.

The plate stamp consists of alphanumeric groups separated by a hyphen. The first group contains the designation type of the plate (p.) And its nominal dimensions in decimeters (with rounding values \u200b\u200bto an integer):

For rectangular plates - length and width;

For trapezoidal plates - length;

For hexagonal plates - diagonal.

In the second group, the value of the load on which the slab is calculated (p.).

For pre-stressing plates in the second group of the brand, the class of strained reinforcement steel is also given.

The brand of plates made with grooves for the damned installation or with holes for the collet grip (instead of mounting loops), complement the letter B.

An example of a conditional designation (brand) of the plate for permanent roads (type 1), a rectangular, length of 6000 and a width of 1750 mm, calculated under the car weighing 30 tons, with stranded reinforcement from reinforcement class A - V:

1 P60.18-30AV.

The same, trapezoidal, length of 5500 mm, calculated under the car weighing 30 tons, with stranded fittings from reinforcing steel class A - IV:

1 PT55-30A.V.

The same, hexagonal with a side of 1160 mm, calculated under the car weighing 30 tons, with unwired fittings:

1 PSH12-30.

The same, plates for temporary roads (type 2), rectangular, length 3000 and a width of 1,750 mm, calculated under the car weighing 10 tons, with unprinted reinforcement:

2 P30.18-10

1.5, 1.6. (Modified edition, change No. 1).

2. Technical requirements

2.2. Plates are made in forms that comply with the compliance with the requirements of the quality and accuracy of the plates established by this standard.

2.3. Plates must have a factory readiness that meets the requirements of this standard.

In terms of the actual strength of concrete (at design aged, vacation and gear);

To the quality of materials used for the preparation of concrete;

To the quality of reinforcement and mortgage products and their position in the stove;

According to the brands of reinforcement steel;

According to brands of steel for mortgage products and mounting loops;

To deviate the thickness of the protective layer of concrete to the reinforcement.

(Modified edition, change No. 1).

Concrete must meet the requirements of GOST 26633.

(Modified edition, change No. 1).

Thermomechanically and thermally hardened reinforcement steel classes AT - V, AT - IV, AT - IVC and AT - III - GOST 10884;

Variamatic wire of class BP-I - GOST 6727.

(Modified edition, change No. 1).

2.8. Requirements for the accuracy of plates

2.8.1. The values \u200b\u200bof actual deviations of geometric parameters should not exceed the limit specified in Table. .

Table 3.

3.4. Acceptance of plates for frost resistance, waterproof and water absorption of concrete should be carried out according to the results of periodic tests.

3.1 - 3.4. (Modified edition, change No. 1).

3.5. In cases where, when checking, it will be established that the vacation strength of the concrete slabs does not satisfy the requirements given in clause, the supply of plates to the consumer should not be made before the concrete cohesion cohesion corresponding to the concrete class on compression strength.

3.6. When accepting plates in terms of accuracy of geometric parameters, the thickness of the protective layer of concrete to the reinforcement and quality of surfaces controlled by measurements, selective single-stage control should be applied.

4. Monitoring and Test Methods

4.1. Testing plates for strength and crack resistance

Test scheme plates

Table 4.

	l.
P60.38, p60.35, p60.30, p60.19, p60.18, PB60.18




P18.18, p18.15


PSH13, PSD13, PSHP13
PSH12, PSD12, PSP12		4.1.5. The width of the splitting of cracks is measured in the places of its greatest disclosure using a verbal microscope of the MPB-2 type with a division of 0.05 mm and a set of probe on NTD. It is allowed to determine the actual strength of concrete slabs by the ultrasound method according to GOST 17624 or mechanical action devices according to GOST 22690, as well as other methods provided by standards for concrete test methods. 4.10. Methods of control and testing of raw materials used for the manufacture of plates must comply with the established state standards or specifications for these materials. 11. Sizes, deviations from straightness and flatness, the thickness of the protective layer, the position of the assembly and butt elements, the quality of concrete surfaces and the appearance of the plates should be checked by methods set by

GOST 21924.0-84

InterstateNYE Stand you

Reinforced concrete plates for urban coatings

IPK Publishing Standards

Moscow

InterstateSTANDARD

Date Introduction N. and I 01.01.85

This standard applies to reinforced concrete pre-stressed plates and plates with unwired fittings made of heavy concrete and intended for the device for assembly coatings of permanent and temporary urban roads for automotive loads N-30and N-10.

Plates are used for roads in areas with the calculated temperature of the outer air (the middle coldest five days of the construction region of SNiP 2.01.01) to minus 40° C in key h.

When using plates in the climatic subareaIVA. Additional requirements should be taken into accountSNiP 2.03.01 Constructions designed for operation in the area.

It is allowed to use data plates for roads in areas with the calculated temperature of the outer air below minus 40° C. Subject to the requirements for SNiP 2.03.01 to designs intended for operation in these conditions.

1. Types, basic parameters and dimensions

(Modified edition, change No. 1).

2.6 .2 . (Excluded, change No. 1).

(Modified edition, change No. 1).

2.7.5 . The shape and dimensions of reinforcement products for plates must comply with theGOST 21924.3.

2.7.6 . Reinforcement products must meet the requirementsGOST 10922.

2.7.7 . Voltage values \u200b\u200bin strained reinforcement controlled at the end of the tension of it on the stops, and the limit deviations of these stresses -GOST 21924.1.

2.8. Demand vanya To the accuracy of plates

2.8.1 . The values \u200b\u200bof actual deviations of geometric parameters should not exceed the limit specified in Table. .

Table 3

View of the list N. e N. in the geometric parameter	Geometrical cue parameter and e nominal value	E. d, Off, mm, for plates
View of the list N. e N. in the geometric parameter	Geometrical cue parameter and e nominal value	permanent roads	n. roads
Deviation n. ie from linear size	Length and width of the plate:
Deviation n. ie from linear size	Up to 2.5 m h.		± 10.
	St. 2.5 to 4.0 m.		± 12.
	St. 4.0 m	± 10.	± 15.
	Thickness plate
	Measuring dimensions (MOn. tAZH NTU NTU)
	The size determining the position of the mortgage products:
	In plane plate
	From plane plate
Deviation from straightness	Straightness profile top overn. saint plate in any section on the entire length or width:
	Up to 2.5 m on.
	St. 2.5 to 4.0 m.
	St. 4.0 m
Deviation from the planen. osti.	Facial flatnessn. saint plate (when measured from a conditional plane passing through three edgesn. points) with a plate length:
	Up to 2.5 m on.
	St. 2.5 to 4.0 m.
	St. 4.0 m
Deviation from perpendicularity	Perpendicularity of adjacent sockets of plates on a plot length:
	400 mm
	100 0 M. m.
N. e N. ie from the equality of diagopour	The difference of the lengths of the diagonals of the facial surfaces of the plates with their greatest size (length and width):
	Up to 4.0 m.
	St. 4.0 m

(Modified edition, change No. 1).

2.8.2. (Excluded from m . № 1).

2.9. Require nia to the quality of surfaces andjust type plates

2.9.1 . The surface riflation of the slab form by applying as the bottom of the pallet shape of leaf corrugated steelGOST 8568. with rhombic rifer. Reef depth - at least 1.0 mm.

The corrugated surface of the plate should have a clear drawing of the rifrance without the sets of the edges of the grooves.

The roughness of the working surface of the plates made by this surface "up" is obtained by treating the surface (after sealing the concrete mixture) by kapron brushes or a tarp ribbon.

2.9.2 . The sizes of the shells and local influx on the work surface of the plate should not exceed:

In diameter or greatest sink ........................................ 1 5 M. m.

In the depths of the shells and the height of local influx ...................................... 1 0 M. m.

Sizes of shells on the non-working surface and side edges of the slab should not exceeddiameter or greatest size of 20 mm.

OKOL. s Concrete Rib (with their total length per 1 M ribs up to 100 mm) should not exceed 10 mm in the depth measured by the work surface of the plate, and 20 mm - on the non-working surface of the plate.

2.9. 1 , 2.9.2.

2.9.3 . Cracks on the surfaces of the plates are not allowed, with the exception of surface shrinkage and technological width of no more than 0,1 mm and no more than 50 mm long in the amount of not more than five by 1.5 m 2 Surface plate.

3. Rules of acceptance

3 .1 . Acceptance of plates should be made by parties in accordance with the requirementsGOST 13015.1 and this standard.

The testing of stoves for strength and crack-resistant loading is carried out before the start of their mass production, when we are making constructive changes or changes in the manufacture of plates.

3.2 . Acceptance of plates in terms of concrete strength (class for compressive strength, vacation and transfer strength), armature armature and tension of the strength of the reinforcement, the correspondence of reinforcement products, the strength of welded compounds, the thickness of the protective layer of concrete to the reinforcement, the accuracy of geometric parameters, the quality of surfaces should be carried out Results of receiving tests and control.

The acceptance of hexagonal plates in terms of tensile concrete strength during bending is carried out according to the results of receiving tests, and rectangular and trapezoidal plates - according to the results of periodic tests at least once a month.

3.3 . Acceptance control of concrete strength should be carried out byGOST 18105.

3.4 . Acceptance of plates for frost resistance, waterproof and water absorptionyu Concrete should be carried out according to the results of periodic tests.

3 .1 - 3.4. (Modified edition, change No. 1).

3.5 . In cases where, when checking, it will be found that the vacation strength of the concrete slabs does not satisfy the requirements given in P. The supply of plates to the consumer should not be made before reaching concrete tiles of strength corresponding to the concrete class by compressive strength.

3.6 . When accepting plates in terms of accuracy of geometric parameters, the thickness of the protective layer of concrete to the reinforcement and quality of surfaces controlled by measurements, selective single-stage control should be applied.

4. Monitoring and Test Methods

4.1. IS. torture aligni stoves for strength and crackbones

4 .1.1 . Testing plates for strength and crack resistance should be carried outloading inGOST 8829. Taking into account the requirements of this standard.

4 .1.2 . The tens of boards of loading is carried out after reaching concrete stoves of the strength corresponding to the concrete class by compressive strength and grade for tensile strength during bending.

It is allowed to use for testing plates having sinks, local influx and eyes Concrete, the dimensions of which exceed those allowed by this standard (p.) Not more than twice, and other defects that do not affect the strength of the plates.

4 .1.3 . Test plates for strength and crack resistance should be carried out according to the scheme shown. , and data Table. .

Test scheme plates

Heck. nine

Table 4

mM.

Size size	l.	but	k.
P60.38, p60.35, p6 0 .30, p60.19, p60.18, PB60.18	6000		1200
PBB55.20	5920		1180
PT55	5500		1100
P35.28.	3500
P30 .18.	3000
P18 .1. 8, p18 .15	1800
PBB35.20	3920
PT35	3500
PSH 1. 3, PSD13, PSHP13	2480
PSH12, PSD12, PSP12	2320

GOST 21924.0-84

Interstate standard

Reinforced concrete plates for coatings
Urban roads

Interstate standard

Date of administration 01. 01. 85

This standard applies to reinforced concrete pre-stress plates and plates with unwired fittings made of heavy concrete and intended for the device for assembly coatings of permanent and time urban roads under the automotive load H-30 and H-10.

Plates are used for roads in areas with the calculated temperature of the outer air (the middle coldest five days of the construction area on SNiP 2.01.01) to minus 40 ° C included.

Plates for temporary roads are manufactured without mounting brackets SC1.

In these plates, niche for mounting brackets are allowed not to install.

The working surface of the plates (the upper surface of the road surface) must have a damage according to the devil. , and the plates made by this surface "up" should be rough (p.).

Notes:

Sizes of plates, mm

Plate Mass (Reference), T

Plate thickness H (H 1)

l 1.

l 2.

l 2 / L 3

b 2 (B 3)

a 6.

pre-tense

with unwired reinforcement

1p60.38

3750

1400

7,85

1p60.35

3500

1300

7,33

2p60.35

1p60.30

6000

3000

1200

3600

1100

6,28

2p60.30

1p60.19

1870

1150

3,90

1p60.18

1750

1150

3,65

2p60.18

1P35.28

3500

2750

2000

4,08

2p35.28

1p30.18

3000

2000

2,20

2p30.18

1750

1P18.18.

1,20

2p18.18

1750

1P18.15

1500

1,03

2P18.15

1PB60.18

6000

1750

1200

3600

1270

4,48

1PBB55.20

5500

2000

3630

1280

4,40

1PBB35.20

3500

2310

3,38

1pt55

5500

1045

3300/

3,35

2pt55

2000/

1155

1pt35

3500

1500

2100/

2,58

2pt35

1psh13

1,80

1pst13

2480

2150

180(196)

1240

1,90

1pshp13

180(199)

1,93

1psh12

1,58

1psd12.

2320

2010

180(195)

1600

1,65

1pshp12

180(197)

1,68

1DPSh13

2480

1070

1240

0,90

1 dsp12.

2320

1000

1160

0,78

1PPSH13

2150

1235

615(345)

1240

0,90

1PPS12.

2010

1155

575(325)

1160

0,78

Note. The mass of the plates is given for concrete of a medium density of 2500 kg / m 3.

Node number by damn.

1p60.38

1p60.35

2p60.35

1p60.30

I and II

2p60.30

1p60.19

1p60.18

2p60.18

1P35.28

2p35.28

1p30.18

2p30.18

1P18.18.

2p18.18

1P18.15

2P18.15

1PB60.18

I, II and IV

1PBB55.20

I and IV.

1PBB35.20

plates with unknown reinforcement - in GOST 21924.2.

The loops should not appear behind the working surface of the face of the plate.

The stove brand consists of their alphanumeric groups separated by a hyphen.

for rectangular plates - length and width;

for trapezoidal plates - length;

for hexagonal plates - diagonal.

In the second group, the value of the load on which the slab is calculated (p.).

For pre-stressing plates in the second group of the brand, the class of strained reinforcement steel is also given.

The brand of plates made with grooves for the damned installation or with holes for the collet grip (instead of mounting loops), complement the letter B.

Example of the conditional designation (stamps)plates for permanent roads (type 1), rectangular, 6000 long and 1,750 mm wide, calculated under the car weighing 30 tons, with stranded reinforcement from reinforcement class A-V:

in terms of the actual strength of concrete (at design aged, vacation and gear);

to the quality of materials used for the preparation of concrete;

to the quality of reinforcement and mortgage products and their position in the stove;

according to the brands of reinforcement steel;

according to brands of steel for mortgage products and mounting loops;

to deviate the thickness of the protective layer of concrete to the reinforcement.

Concrete must meet the requirements of GOST 26633.

(Modified edition, change No. 1).

thermomechanically and thermally strengthened reinforcement steel class at-V, AT-IV, AT-IVS and AT-III according to GOST 10884;

variamatic wire of class BP-I - GOST 6727.

(Modified edition, change No. 1).

Geometrical parameter and its nominal value

Previous Off, mm, for plates

permanent roads

temporary roads

Deviation OT

Length and width of the plate:

linear size

up to 2.5 m on.

± 6.

± 10.

sv. 2.5 to 4.0 m.

± 8.

± 12.

sv. 4.0 M.

± 10.

± 15.

Thickness plate

± 4.

± 6.

Measures (mounting and butt elements)

± 3.

± 5.

The size determining the position of the mortgage products:

in plane plate

from plane plate

Deviation from straightness

Straightness of the profile of the top surface of the plate in any section on the entire length or width:

up to 2.5 m on.

sv. 2.5 to 4.0 m.

sv. 4.0 M.

Deviation from flatness

The flatness of the facial surface plate (when measured from the conditional plane passing through three extremes) at the plate length:

up to 2.5 m on.

sv. 2.5 to 4.0 m.

sv. 4.0 M.

Deviation from perpendicularity

Perpendicularity of adjacent sockets of plates on a plot length:

400 mm

1000 mm

Deviation from the equality of diagonals

The difference in the lengths of the diagonals of the front surfaces of the plates with their greatest size (length and width)

up to 4.0 m.

sv. 4.0 M.

(Modified edition, change No. 1).

3.4 . Acceptance of plates for frost resistance, waterproof and water absorption of concrete should be carried out according to the results of periodic tests.

3.1 -3.4. (Modified edition, change No. 1).

3.5 . In cases where, when checking, it will be established that the vacation strength of the concrete slabs does not satisfy the requirements given in clause, the supply of plates to the consumer should not be made before the concrete cohesion cohesion corresponding to the concrete class on compression strength.

3.6 . When accepting plates in terms of accuracy of geometric parameters, the thickness of the protective layer of concrete to the reinforcement and quality of surfaces controlled by measurements, selective single-stage control should be applied.

. Control and Test Methods

4.1. Testing plates for strength and crack resistance

4.1.1 . Testing plates for strength and crack resistance should be loaded according to GOST 8829, taking into account the requirements of this standard.

The regulatory act determines the production of road plates 9 of various forms (4 of which are valuable) is designed for automotive loads H-30 and H-10 (tonnage of cars). GOST also contains the main parameters of the road plates. High-strength heavy concrete plates, with powerful reinforcement, designed for the Cathedral coating of permanent and time urban roads in any climatic conditions (up to minus 40 ° C). The standard describes in detail each size and shape of the plate, accompanying reinforced concrete slabs of roads drawings, reference information, reinforcement schemes and installation of mounting loops.

Production standards and parameters of a rectangular plate for urban roads are fixed in GOST 21924.2-84 and GOST 21924.2-84. Road plates reinforcement schemes are indicated in the drawings of GOST 21924.1-84.Forms and dimensions of reinforcement and assembly elements according to GOST 21924.3.

GOST 21924.0-84 Prescribes to produce slabs from heavy concrete with a density of 2500 kg / m 3 (class by compressive strength of B30 and B22.5). The production of the road plate is possible in 2 embodiments: the road plate up to 3 m long is manufactured with a pre-unmatched reinforcement, and a plate of more than 3 m will be pre-tense. Working (upper) The surface of the road plate must have a ripple to improve binding with an applied asphalt overlap.

Brand of concrete on frost resistance and waterproof of the rectangular road plate (for temperature up to minus 40 ° C) for permanent roads - F200 and W4, for temporary roads - F150 and W2. GOST 21924.0-84 assumes that the stove may have mounting loops, a chopping hinge or a groove for a damned mounting, while the loop do not protrude behind the working surface of the plate.

Technical requirements for the production of road plates include requirements for forms, readiness, strength, crack resistance, as well as the satisfaction of the GOST 13015.0 in the following indicators:

in terms of the actual strength of concrete (at design aged, vacation
gear);
to the quality of materials used for the preparation of concrete;
to the quality of reinforcement and mortgage products and their position in the stove;
according to the brands of reinforcement steel;
according to brands of steel for mortgage products and mounting loops;
to deviate the thickness of the protective layer of concrete to the reinforcement.

Separately, GOST 21924.0-84 contains tables of permissible geometric deviations of reinforced concrete slabs. Requirements for acceptance of products at the stage of readiness and passing the consumer are written in detail in this regulatory act. Transportation and storage of road plates should be made according to the rules of GOST 21924.0-84.

Reinforced concrete plates for city roads

Technical conditions

Reinforced Concrete Slabs for Pavements of City Roads Specifications

Date of introduction 01.01.85

Plates are used for roads in areas with the calculated temperature of the outdoor air (the middle coldest five days of the construction area on SNIP 2 01 01) to minus 40 ° C

When using boards in the IVA climatic subarea, additional requirements SNiP 2.03.01 should be taken into account to designs intended for operation in the area.

The use of data plates for roads in areas with the calculated temperature of the outer air is allowed lower than minus 40 ° C under the requirements of SNIP 2 03.01 to the designs intended for operation under these conditions.

The standard does not apply to reinforced concrete plates for the internal roads of industrial enterprises, for intra-human roads on SNiP 2.05 07, as well as on plates of reusable use for temporary roads on construction sites

1. Types, basic parameters and dimensions

1 1 plates are divided into types depending on:

From destination "

1 - for permanent roads

2 - for temporary roads

From configuration:

P - rectangular,

PB is rectangular with one combined board,

PBB is rectangular with two combined sides,

PT - trapezidal,

PSH - hexagonal,

PNGD - hexagonal axis diagonal,

PSP - hexagonal axis transverse,

DPS - diagonal half of the hexagonal plate,

PPS - transverse half of the hexagonal plate.

1 2. Form and main sizes of plates must correspond to the specified 1-6 and in Table. 12.

2 GOST 21924.0-84

GOST 21924.0-84 S.

P. 4 GOST 21924.0-84

P2; PZ, p2 "p3

3-3

GOST 21924.0-84 S.

1IP IPSH P.

GOST 21924.0-84

GOST 21924.0-84 S.

Detail of the rifle on the work surface of PT

PSH Type Pshch Plate Type Type Type Type Type Type PSH Type PSH Type Type Plate. detail

GOST 21924.0-84 S.

Table I.

			Mass plates (reference), t
Size	Plate thickness to (k t)
	pre-tense	with Nsnapry-Gasm Armature

Note. The mass of the plates is given for concrete of an average density of 2500 kg / m 1.

table 2

Plugpzmer	Node number by damn 6
1p60.38 1p60 35 2p60.35 1p60.30 2p60.30


1P18 18 2P18.18 1P18.15 2P18.15

(Modified edition, change No. 1).

Plates for temporary roads are manufactured without mounting brackets SC1.

In these plates, niche for mounting bracket is allowed not to arrange.

In coordination with the consumer, it is allowed to manufacture plates of types of P and PTs with grooves for annexial mounting in accordance with the features. 7 or, with screws for collet capture instead of mounting loops and niche devices for them. At the same time, in pre-stressful plates for permanent roads, instead of the mounting loops, the SC1 bracket is required in accordance with the features. 6 (node \u200b\u200b1). The number of holes for collet grippers and their location are determined on the basis of the technology of manufacturing plates and their installation.

The working surface of the plates (the upper surface of the road surface) must have a damage according to the devil. 8, and the plates made by this surface "up" should be rough (p. 2.9.1).

Notes:

1. It is allowed to manufacture plates with a fan size of no more than 10 mm on the front surface of the plate.

3. Inventory plates for temporary roads are allowed to be manufactured with technological beams not more than 8 mm.

4. It is allowed to manufacture on the active equipment of the plates with a common view other than the specified trait. 1-8, while maintaining the overall sizes of the plate and comply with all other requirements established by this standard.

5. For damage plates (damn 7), changes in the shape of the plates associated with the technology of their manufacture (the presence and size of the samples, radii of rounding, etc.) are allowed.

6. For plates with an unproken reinforcement, the vertical location of the mounting loops is allowed.

7. The installation of mounting loops is allowed within the niches from the middle of the plate along its face to the position of the mirror-replaced hinge bindings (sizes a and b) by damn. 6.

1.3. The plates are designed for the passage of cars weighing 30 and eat. In this case, the dynamism coefficient is adopted equal to 1.2, and the module of the deformation of the base when calculating the plates is:

For permanent roads - 50 MPa (500 kgf / cm 2);

For temporary roads - 25 MPa (250 kgf / cm 2).

1.4. Plate design is given:

Pre-stressed plates - in GOST 21924.1;

Plates with unknown reinforcement - in GOST 21924.2.

1.5. The plates are made with mounting loops and holes for the collet grip (features. 1-6) or grooves for damaged installation (damn 7).

The loops should not appear behind the working surface of the face of the plate.

1.6. Plates are marked in accordance with GOST 23009.

The stove mark consists of alphanumeric groups separated by a hyphen

The first group contains the designation of the plate type (clause 1.1) and its nominal dimensions in decimeters (with rounding values \u200b\u200bto an integer):

For rectangular plates - length and width;

For trapezoidal plates - length;

For hexagonal plates - diagonal.

In the second group, the load value is calculated on which the plate is calculated (paragraph 1.3).

For pre-stressing plates in the second group of the brand, the class of strained reinforcement steel is also given.

The brand of plates made with grooves for the damned installation or with holes for the collet grip (instead of mounting loops), complement the letter B.

PR and conditional designations (stamps) Plates for permanent roads (type 1), rectangular, length 6000 and 1,750 mm wide, calculated under the car weighing 30 tons, with stranded reinforcement from reinforcing steel class A-V:

The same, trapezoidal, length of 5500 mm, calculated under the car weighing 30 tons, with stranded fittings from reinforcement steel class A-IV:

The same, hexagonal with a side of 1160 mm, calculated under the car weighing 30 tons, with unwired fittings:

The same, plates for temporary roads (type 2), rectangular, length 3000 and a width of 1,750 mm, calculated under the car weighing 10 tons, with unprinted reinforcement:

1.5, 1.6. (Modified edition, change No. 1).

2. Technical requirements

2.1. Plates should be manufactured in accordance with the requirements of this standard and technological documentation approved in the prescribed manner, according to the drawings given in GOST 21924.1 and GOST 21924.2.

2.2. Plates are made in forms that comply with the compliance with the requirements of the quality and accuracy of the plates established by this standard.

2.3. Plates must have a factory readiness that meets the requirements of this standard.

2.4. Stoves for strength and crack resistance must withstand the control loads specified in GOST 21924.1 and GOST 21924.2.

2.5. Plates must meet the requirements of GOST 13015.0:

In terms of the actual strength of concrete (at design aged, vacation and gear);

To the quality of materials used for the preparation of concrete;

To the quality of reinforcement and mortgage products and their position in the stove;

According to the brands of reinforcement steel;

According to brands of steel for mortgage products and mounting loops;

To deviate the thickness of the protective layer of concrete to the reinforcement.

(Modified edition, change No. 1).

2.6. Requirements for concrete

2.6.1. Plates should be made of heavy-density heavy concrete more than 2,200 to 2500 kg / m 3. Classes for compressive strength and grades for tensile strength during bending, indicated in GOST 21924.1 and GOST 21924.2.

Concrete must meet the requirements of GOST 26633.

(Modified edition, change No. 1).

2.6.2. (Excluded, change No. 1).

2.6.3. The value of the normalized vacation strength of the concrete should be taken equal to 70% of the concrete class on compressive strength and concrete brand for tensile strength during bending. When delivery of plates in the cold year of the year (according to GOST 13015.0), the value of the normalized vacation strength of concrete can be increased, but not more than 90% of the class for compressive strength and stamps for tensile strength during bending, and for plates intended for temporary roads - up to 100%.

The value of the normalized vacation strength of the concrete must comply with the plates specified in the order on the design documentation of a particular structure.

(Modified edition, change No. 1).

2.6.4. The normalized transmission strength of the concrete of pre-stressful plates is 70% of the concrete class by compressive strength.

Transferring compression efforts to concrete (vacation of reinforcement tension) should be made after reaching the proper of the required transfer strength.

2.6.5. Brand of concrete on frost resistance and waterproofs are taken for plates intended for permanent roads in areas with the average monthly settlement temperature of the coldest month (according to SNiP 2.01.01), respectively:

Up to minus 5 ° C included. - F100 and W2;

Below minus 5 to minus 15 ° C included. - F150 and W4;

Below minus 15 ° C - F200 and W4.

Brand concrete on frost resistance and waterproof for plates intended for temporary roads in areas with the average monthly settlement temperature of the coldest month:

Up to minus 5 ° C included. - F75 and W2;

Down minus 5 ° C to minus 15 ° C included. - F100 and W2;

Below minus 15 ° C - F150 and W2.

The brands of concrete on frost resistance and waterproof indicate in order for the manufacture of plates, in accordance with the established design documentation of a particular structure.

(Modified edition, change No. 1).

2.6.6. Concrete slabs should not have water absorption more than 5% by weight.

2.6.7. The temperature of isothermal exposure with heat-woofer plate processing should not exceed 70 ° C.

2.6.8. For the preparation of concrete, portland cement according to GOST 10178 should be applied with additional requirements for concrete road surfaces.

It is allowed to use Portland cement for TU 21-20-51-83.

Fillers - according to GOST 26633 (the size of grains of large aggregate is not more than 20 mm).

2.6.5 - 2.6.8. (Modified edition, change No. 1).

2.6.9. Plasticizing and air-receiving (gas-forming) supplements used to prepare concrete must satisfy the requirements of regulatory and technical documentation (NTD) approved in the prescribed manner.

2.7. Requirements for fittings and reinforcement products

2.7.1. The rod thermomechanically harnessed reinforcement steel of Classes AT-V, AT-IV and AT-IVC and hot-rolled Classes A-V and AT-IV should be used as strained reinforcement plates.

Unbavilable reinforcement steel Classes AT-V and AT-IV should be used as whole rods of dimensional length without welded joints.

2.7.2. A reinforcement wire of class BP-1 and the rod reinforcement steel class at-SS, A-III and A-I should be applied as an unjust reinforcement.

2.7.1, 2.7.2. (Modified edition, change No. 1).

2.7.3. (Excluded, change No. 1).

2.7.4 reinforcement steel must meet the requirements:

Rod reinforcement steel classes A-V, A-IV, A-III and A-I - GOST 5781;

Thermomechanically and thermally strengthened reinforcement steel Classes AT-V, AT-IV, AT-IVC and AT-SC - GOST 10884;

VARTER Class BP-1 - GOST 6727.

2.7.5. The shape and dimensions of reinforcement products for plates must comply with the GOST 21924.3.

2.7.6 The reinforcement products must meet the requirements of GOST 10922.

2.7.7. The values \u200b\u200bof the voltage in the strained fittings controlled at the end of the tension of it on the stops, and the limit deviations of these stresses - according to GOST 21924.1.

2.8. Requirements for the accuracy of plates

2.8.1 The values \u200b\u200bof actual deviations of geometric parameters should not exceed the limit specified in Table. 3.

Table 3.

Type of deviation of the geometric parameter	Geometrically "parameter and its nominal value	Prev, Off, mm, for plates
Type of deviation of the geometric parameter	Geometrically "parameter and its nominal value	permanent roads	temporary
Line-sized deviation	Length and width of the plate: - up to 2.5 m on.
	St. 2.5 to 4.0 m.

	Thickness plate
	Measures (mounting and butt elements)
	The size determining the position of the mortgage products. - in the plane of the plate
	From plane plate
Deviation from straightness	Straightness of the profile of the top surface of the plate in any section on the entire length or width: Up to 2.5 m on.
	St. 2.5 to 4.0 m.

Deviation from flatness	The flatness of the facial surface plate (when measured from the conditional plane passing through three extremes) at the plate length: Up to 2.5 m on.
	St. 2.5 to 4.0 m.

Deviation from perpendicularity	Perpendicularity of adjacent sockets of plates on a plot length:

Deviation from the equality of diagonals	The difference of the lengths of the diagonals of the facial surfaces of the plates with their greatest size (length and width): Up to 4.0 m

(Modified edition, change No. 1).

2.8.2. (Excluded, change No. 1).

2.9. Requirements for the quality of surfaces and appearance of plates

2.9.1. The surface riflation of the plate is formed by applying as the bottom of the pallet shape of leaf corrugated steel according to GOST 8568 with rhombic rifrance. Reef depth - at least 1.0 mm.

The corrugated surface of the plate should have a clear drawing of the rifrance without the sets of the edges of the grooves.

The roughness of the working surface of the plates made by this surface "Up" is obtained by treating the surface (after sealing concrete mixture) by piping brushes or a tarp ribbon.

2.9.2. The sizes of the shell and local influx on the work surface of the plate should not exceed

On the diameter or the largest sink ..................... 15 mm

In the depths of the shell and the height of the local influx .................. 10 mm

The sizes of the shells on the non-working surface and side edges of the slab should not exceed the diameter or the largest size of 20 mm.

The concoctions of the concrete edge (with their total length per 1 m ribs up to 100 mm) should not exceed 10 mm in the depth measured by the work surface of the plate, and 20 mm - on the non-working surface of the slab.

2.9.1, 2.9.2. (Modified edition, change No. 1).

2.9.3. Cracks on the surfaces of the plates are not allowed, with the exception of surface shrinking and technological width of no more than 0.1 mm and no more than 50 mm long in the amount of not more than five per 1.5 m 2 surface of the plate.

3. Rules of acceptance

3.1. Accepting the plates should be made by parties in accordance with the requirements of GOST 13015.1 and this standard.

3.2. Acceptance of plates in terms of concrete strength (class for compressive strength, vacation and transfer strength), armature armature and tension of the strength of the reinforcement, the correspondence of reinforcement products, the strength of welded compounds, the thickness of the protective layer of concrete to the reinforcement, the accuracy of geometric parameters, the quality of surfaces should be carried out Results of receiving tests and control.

3.3. Acceptance control of concrete strength should be carried out according to GOST 18105.

3.4. Acceptance of plates for frost resistance, waterproof and water absorption of concrete should be carried out according to the results of periodic tests.

3.1 - 3.4. (Modified edition, change No. 1).

3.5. In cases where, when checking, it will be found that the vacation strength of the concrete slabs does not satisfy the requirements given in paragraph 2.6, the supply of plates to the consumer should not be made until concrete cohesion stoves corresponding to the concrete class on compression strength.

4. Monitoring and Test Methods

4.1. Testing plates for strength and fracture bone

4.1.1. Testing plates for strength and crack resistance should be loaded according to GOST 8829, taking into account the requirements of this standard.

4.1.2. The tens of boards of loading is carried out after reaching concrete stoves of the strength corresponding to the concrete class by compressive strength and grade for tensile strength during bending.

It is allowed to use for testing plates having sinks, local influx and concrete, the dimensions of which exceed those allowed by this standard (clause 2.9.1) no more than twice, and other defects that do not affect the strength of the stoves.

4.1.3. Test plates for strength and crack resistance should be carried out according to the scheme shown. 9, and data Table. four.

Test scheme plates

Size size
P60.38, p60.35, p60.30, p60.19, p60.18, PB60.18




GT18.18, p18.15


PSH13, PSD13, PSHP13
PSH12, PSD12, PSP12

4.1.4. The values \u200b\u200bof the check load when testing stoves for strength and crack resistance are taken according to GOST 21924.1 and GOST 21924 2.

4.1.5. The width of the splitting of cracks is measured in the places of its greatest disclosure using a verbal microscope of the MPB-2 type with a division of 0.05 mm and a set of probe on NTD.

4.2 Concrete strength on compression and stretching in bending should be determined according to GOST 10180 on a series of samples made from a concrete mix of the working composition and stored in conditions according to GOST 18105.

It is allowed to determine the actual strength of concrete slabs by the ultrasound method according to GOST 17624 or mechanical action devices according to GOST 22690, as well as other methods provided by standards for concrete test methods.

4.3. Concrete frost resistance should be determined from a series of samples made from a concrete mix of the work maker, according to GOST 10060.0. In this case, concrete samples before the test must be saturated with a 5% sodium chloride solution and in the same solution should be dishonored after each freezing cycle.

4.4. Waterproof of concrete should be determined according to GOST 12730.0 and GOST 12730.5 on a series of samples made from a concrete mix of the work maker.

4.5. 4.6. (Excluded, change No. 1).

4.7. The volume of the involved air in the concrete mixture should be determined according to GOST 10181.

4.8. Control and testing of welded reinforcement products should be carried out according to GOST 10922.

4.9. Measurement of stresses in strained fittings controlled at the end of the tension should be carried out according to GOST 22362.

4.10. Methods of control and testing of raw materials used for the manufacture of plates must comply with the established state standards or specifications for these materials.

4.11. The dimensions, deviations from straightness and flatness, the thickness of the protective layer, the position of the installation and butt elements, the quality of concrete surfaces and the appearance of the plates should be checked by methods set by GOST 13015.0.

5. Marking, Storage and Transportation

5.1. Plate marking - according to GOST 13015.2.

Marking inscriptions and signs should be applied on lateral or end faces of each plate.

5.2. The requirement for the document on the quality of the plates supplied by the consumer is according to GOST 13015.3.

In addition to the main actual quality indicators, in the document additionally should be given:

Brands of concrete on frost resistance;

Concrete brands on waterproof;

Water absorption of concrete.

(Modified edition, change No. 1).

5.3. Storage and transportation of plates should be carried out in a working (horizontal) position.

5.4. Plates should be stored in warehouses of shippers and consignees in stacks sorted by brands and parties.

The height of the stack should be no more than 2.0 m.

5.5. The lower row of plates in the stack should be laid on a dense, carefully leveling base on the podcasts located at the lifting places.

The lining thickness should be at a soil base of at least 100 mm, and with a tight base - at least 50 mm.

(Modified edition, change No. 1).

5.6. Plates when storing in a stack, and also during transportation, it is necessary to lay on transverse gaskets with a thickness of at least 25 mm, located strictly vertically one over the other at the plates of the plates.

At the same time, it is necessary to ensure the possibility of capturing each plate with a crane and free lifting it for loading for vehicles and installation.

5.7. Loading, transportation and disfiguration of plates should be carried out in compliance with measures that exclude the possibility of plates damage.

Not allowed:

Discharge plate discharge;

Capture slabs for lifting technological loops when loading, unloading and mounting.

5.8. The height of the stack of plates during transportation is established depending on the carrying capacity of vehicles and permissible dimensions.

5.9. Plates should be transported by automotive or railway transport in the operating position (front surface up) with a reliable fixing that protects the plates from the displacement.

Plates during transportation should not be subjected to shocks and shocks.

5.10. Loading, fastening and transportation of plates on an open railway rolling stock (collures and platforms) should be carried out in accordance with the requirements of the transportation rules and technical conditions of loading and fastening of goods approved by the Ministry of Communications.

5.11. When loading, transporting, unloading and storing the plates, it is necessary to comply with the requirements of SNiP III-4.

Information details

1. Designed and made by the Ministry of Housing and Communal Services of the RSFSR

2. APPROVED AND INTRODUCED RESOLUTION OF THE STATE COMMITTEE OF THE USSR for construction of 30.09.83 No. 210

3. Instead of GOST 21924-76

4. Reference regulatory and technical documents

	Point number		Point number
GOST 5781-82.		GOST 13015.3-81
GOST 6727-80		GOST 17624-87
GOST 8568-77		GOST 18105-86
GOST 8829-94		GOST 21924.1-84	1 4, 2.1, 2 4, 2 6 1, 2.7 7,
GOST 10060.0-95
GOST 10178-85		GOST 21924 2-84	1.4, 2.1, 2.4, 2 6.1, 4 1 4
GOST 10180-90.		GOST 21924.3-84
GOST 10181-2000		GOST 22362-77
GOST 10884-94		GOST 22690-88.
GOST 10922-90.		GOST 23009-78.
GOST 12730.0-78		GOST 26633-91
GOST 12730.5-84		TU 21-20-51-83
GOST 13015.0-83	2.5, 2.6 3, 4 11	Snip 2 01.01-82	Introductory part, 2.6.5
GOST 13015.1-81		SNIP 2.03.01-84	Input part
GOST 13015.2-81		SNiP 2.05.07-85 SNiP III-4-80	Introductory part 5.11

5. Edition (January 2002) with change No. 1, approved in December 1987 (IUS 5-88)