Forms / 28.11.2019

Snip 2.03 12 88 floors. Appointment of types of floor coverings in residential, public, administrative and residential buildings

BUILDING REGULATIONS

FLOORS

SNiP 2.03.13-88

STATE CONSTRUCTION COMMITTEE of the USSR

MOSCOW 1988

DEVELOPED by the Central Scientific Research Institute of Industrial Buildings of the USSR State Construction Committee (Candidate of Technical Sciences I. P. Kim- topic leader, E. V. Grigoriev) with the participation of TsNIIEP dwellings of the State Committee for Architecture ( D. K. Baulin- topic leader, Cand. tech. sciences M. A. Khromov).

INTRODUCED by TsNIIpromzdanii Gosstroy of the USSR.

PREPARED FOR APPROVAL by the Department of Standardization and Technical Norms in Construction of the USSR State Construction Committee ( V. M. Skubko).

With the introduction of SNiP 2.03.13-88 "Floors" from January 1, 1989, the chapter of SNiP II-V.8-71 "Floors. Design standards ".

When using regulatory document should take into account the approved changes in building codes and regulations and state standards published vmagazine "Bulletin construction equipment "," Collection changes To building codes and rules "Gosstroy of the USSR and information index "State standards of the USSR" Gosstandart of the USSR.

These standards apply to the design of floors for industrial, residential, public, office and household buildings.

Floors with a standardized index of heat assimilation of the floor surface should be designed taking into account the requirements of SNiP II-3-79.

The design of the floors of livestock, poultry and fur farming buildings and premises should be carried out taking into account the requirements of SNiP 2.10.03-84.

Building polymer materials and products for floors should be used in accordance with the List of polymer materials and structures permitted for use in construction, approved by the USSR Ministry of Health in agreement with the USSR State Construction Committee.

When designing floors, it is necessary to comply with additional requirements established by the design standards for specific buildings and structures, fire and sanitary standards, as well as the norms of technological design.

These standards do not apply to the design of removable floors; floors located on permafrost and heated floors.

Accepted names of floor elements are given in reference annex 3.

1. GENERAL PROVISIONS

1.1. Choice constructive solution floors should be carried out on the basis of technical and economic feasibility the decision in the specific conditions of construction, taking into account the provision of:

reliability and durability of the adopted design;

economical use of cement, metal, wood and other building materials;

most full use physical and mechanical properties of the materials used;

minimum labor costs for the device and operation;

maximum mechanization of the device process;

extensive use of local building materials and industrial waste;

lack of influence of harmful factors used in the construction of flooring materials;

optimal hygienic conditions for people;

fire and explosion safety.

1.2. The design of floors should be carried out depending on the specified impacts on the floors and special requirements for them, taking into account the climatic conditions of construction.

1.3. The intensity of mechanical influences on the floors should be taken according to the table. one.

1.4. The intensity of exposure to liquids on the floor should be considered:

small- slight effect of liquids on the floor; the floor surface is dry or slightly damp; the floor covering is not saturated with liquids; cleaning of premises with water spilling from hoses is not performed;

middle- periodic moistening of the floor, causing the coating to be impregnated with liquids; the floor surface is usually damp or wet; liquids flow down the floor surface periodically;

big- persistent or frequent escaping of liquids over the floor surface.

The zone of exposure to liquids due to their transfer on the soles of shoes and transport tires extends in all directions (including adjacent rooms) from the place where the floor is wetted: with water and aqueous solutions for 20 m, with mineral oils and emulsions - for 100 m.

Washing the floor (without spilling water) and occasional occasional splashes, drops, etc. are not considered exposure of the floor to liquids.

1.5. In rooms with medium and high intensity of exposure to the floor of liquids, floor slopes should be provided. The value of the slopes of the floors should be taken:

0.5-1% - for seamless coatings and slab coatings (except for all types of concrete coatings);

1-2% - for coatings made of paving stones, bricks and concrete of all types.

The slopes of the trays and channels, depending on the materials used, must be correspondingly not less than indicated. The direction of the slopes should be such that wastewater flows into trays, canals and ladders without crossing driveways and aisles.

1.6. The slope of floors on ceilings should be created using a screed of variable thickness, and floors on the ground - with an appropriate layout of the subgrade.

1.7. In premises for storage and processing of foodstuffs it is necessary to use floors without voids (air space under the covering).

Table 1

Mechanical impact	Intensity of mechanical stress
Mechanical impact	very significant	significant	moderate
Pedestrian traffic per 1 m of passage width, number of people per day			500 and more
Tracked vehicles on one lane, units / day	10 and more		Not allowed	Not allowed
The movement of vehicles on a rubber track for one lane, units / day				Handcart movement only
The movement of carts on metal tires, rolling of round, metal objects in one lane, units / day				Not allowed
Impacts when falling from a height of 1 m of solid objects with a mass, kg, no more
Drawing hard objects with sharp corners and edges	Allowed	Allowed	Not allowed	Not allowed
Working with a sharp tool on the floor (shovels, etc.)

1.8. Materials for chemically resistant floor coverings in rooms with aggressive environments should be taken in accordance with the requirements of SNiP 2.03.11-85.

1.9. Plinths should be installed in places where floors adjoin walls, partitions, columns, foundations for equipment, pipelines and other structures protruding above the floor.

1.10. For cladding trays, channels and ladders in chemically resistant floors, it is necessary to use materials intended for covering these floors.

2. FLOOR COVERINGS

2.1. The type of floor covering of industrial premises should be assigned depending on the type and intensity of mechanical, liquid and thermal influences, taking into account special requirements for floors in accordance with mandatory Appendix 1.

The type of floor covering in residential, public, administrative and residential buildings should be assigned depending on the type of premises in accordance with the recommended Appendix 2.

2.2. The thickness and strength of the material of continuous coatings and floor slabs should be assigned according to table. 2.

2.3. The thickness of the floors: earthen, slag, gravel, crushed stone, adobe, concrete, from heat-resistant concrete should be assigned according to the calculation depending on the loads on the floor, the materials used and the properties of the base soil and take at least, mm:

earthen 60

slag, gravel, crushed stone and adobe 80

concrete and heat-resistant concrete 120

2.4. The thickness and reinforcement of refractory concrete slabs should be taken according to the calculation of structures lying on elastic foundation, under the action of the most unfavorable loads on the floor.

2.5. The thickness of the boards, parquet boards, parquet boards, superhard fibreboard and slatted coverings should be taken in accordance with the current product standards in accordance with the instructions in the albums of typical floor details of residential and public buildings.

2.6. In sports halls, the thickness of the covering boards should be taken according to the calculation, taking into account dynamic loads on the floors and the need to ensure reliable fastening to the floor of sports equipment and apparatus.

2.7. The air space under the floor covering made of boards, slats, parquet boards and shields should not communicate with ventilation and smoke ducts, and in rooms with an area of more than 25 m 2, it should additionally be divided by partitions made of boards into closed compartments of size (4-5) ´ (5- 6) m.

2.8. The height and strength of the stone for paving stones should be assigned according to table. 3.

table 2

Floor covering material	The intensity of mechanical stress on the floor
	very significant	significant		moderate
	coating thickness, mm	coating thickness, mm	class of concrete in terms of compressive strength or strength of the coating material, MPa (kgf / cm 2)	coating thickness, mm	class of concrete in terms of compressive strength or strength of the coating material, MPa (kgf / cm 2)	coating thickness, mm	class of concrete in terms of compressive strength or strength of the coating material, MPa (kgf / cm 2)

cement
mosaic	Does not apply
Polyvinyl acetate and latex cement
acid resistant
Asphalt concrete
Cement-sand mortar		Does not apply
Metal cement mortar				Does not apply		Does not apply
Polyvinyl acetate-cement-sawdust composition	Does not apply	Does not apply
Bulk compound based on synthetic resins and aqueous dispersions of polymers				Does not apply
Xylolite

cement-concrete
mosaic-concrete
asphalt concrete
ceramic acid resistant
slag-ceramic		Does not apply
stone casting				Does not apply		Does not apply
diabase	Does not apply	Does not apply
cement-sand

Table 3

Characteristics of the stone	Effects on the floor
Characteristics of the stone	Tracked vehicles, impacts when falling from a height of 1 m of solid objects weighing 30-50 kg	Impacts when falling from a height of 1 m of solid objects weighing 10-30 kg
Height, mm	125-160 100-120	125-160 100-120
Compressive strength, MPa (kgf / cm 2)

Note. Values above the line - when laying a stone on a sandy underlying layer; below the line - when laying on concrete, gravel, slag and other underlying layers.

2.9. If increased requirements for dust separation are imposed on the floors, the surface finish of the floor covering should be provided in accordance with the recommended Appendix 4.

3. INTERLAYER

3.1. The choice of the type and the purpose of the thickness of the interlayer should be made depending on the acting influences on the floors in accordance with the mandatory Appendix 5.

3.2. The compressive strength of the flooring material must be at least, MPa (kgf / cm 2):

cement-sand mortar at the intensity of mechanical stress (see table. 1):

weak 15 (150)

moderate, significant and very significant 30 (300)

solution on liquid glass 20 (200)

The compressive strength class of fine-grained concrete must be at least B30.

4. WATERPROOFING

4.1. Waterproofing from penetration Wastewater and other liquids should be provided only for medium and high intensity of their impact on the floor (see paragraph 1.4):

water and neutral solutions - in floors on the floor, on subsiding and swelling base soils, as well as in floors on heaving soils of the base of the floor in unheated rooms;

organic solvents - only in floors on floors;

acids, alkalis and their solutions, as well as - in floors on the ground and on the floor.

4.2. To protect against the penetration of water, neutral and chemically aggressive liquids, isolate, waterproofing, brizol, polyisobutylene, polyvinyl chloride film, duplicated polyethylene should be used.

4.3. With an average intensity of impact on the floor of sewage and other liquids, gluing waterproofing made of bitumen-based materials should be used in 2 layers, from polymeric materials - in 1 layer.

With a high intensity of the impact of the liquid on the floor, as well as under gutters, canals, trawls and within a radius of 1 m from them, the number of waterproofing layers made from bitumen-based materials should be increased by 2 layers, and from polymeric materials - by 1 layer.

4.4. The use of glued waterproofing made of materials based on bitumen at medium and high intensity of impact on the floor of mineral oils, emulsions from them or organic solvents, as well as waterproofing made of materials based on tar at medium and high intensity of impact on the floor of organic solvents is not allowed.

4.5. On the surface of the glued waterproofing made of materials based on bitumen and tar, before laying coatings, interlayers or screeds on it, which include cement or liquid glass, it is necessary to provide for the application of bitumen or tar mastic, respectively, with sanding with a size of 1.5-5 mm.

4.6. Waterproofing from the penetration of sewage and other liquids must be continuous in the floor structure, walls and bottoms of trays and channels, above the foundations for equipment, as well as in places where the floor transitions to these structures. In places where the floor is adjacent to walls, columns, foundations for equipment, pipelines and other structures protruding above the floor, waterproofing should be continuously continued to a height of at least 300 mm from the level of the floor covering.

4.7. When located in the zone of dangerous capillary rise groundwater the bottom of the concrete sub-layer used in rooms where there is no impact on the floor of medium and high-intensity sewage, waterproofing should be provided under the sub-layer.

When designing waterproofing, the height, m, of a dangerous capillary rise of groundwater should be taken from the groundwater horizon:

for coarse sand 0.3

»» Medium size and small 0.5

for dusty sand 1.5

»» Loam, silty loam

and sandy loam, clay 2.0

4.8. With an average and high intensity of exposure to non-floor solutions of sulfuric, hydrochloric, nitric, acetic, phosphoric, hypochlorous and chromic acids, waterproofing should be provided under the concrete underlying layer.

4.9. When the concrete underlying layer is located below the level of the blind area of the building in rooms where there is no effect on the floor of medium and high-intensity sewage, waterproofing should be used.

5. SCREED
(UNDER FLOOR BASE)

5.1. Screeds should be used in cases where it is necessary:

leveling the surface of the underlying layer;

sheltering pipelines;

distribution of loads over heat and sound insulation layers;

ensuring normalized heat assimilation of the floor;

creating a slope in floors on ceilings.

5.2. The smallest thickness of the screed for a slope at the points of abutment to gutters, channels and ladders should be: when laying it on floor slabs - 20, along a heat or sound insulating layer - 40 mm. The thickness of the screed for covering pipelines should be 10-15 mm more than the diameter of the pipelines.

5.3. Screeds should be prescribed:

for leveling the surface of the underlying layer and covering pipelines - from concrete of a compressive strength class of at least B12.5 or cement-sand mortar with a compressive strength of at least 15 MPa (150 kgf / cm 2);

to create a slope on the floor - from concrete of a compressive strength class B7.5 or cement-sand mortar with a compressive strength of at least 10 MPa (100 kgf / cm 2);

for bulk polymer coatings - from concrete of a compressive strength class of at least B15 or cement-sand mortar with a compressive strength of at least 20 MPa (200 kgf / cm 2).

5.4. Lightweight concrete screeds made to ensure normalized heat assimilation of the floor, in terms of compressive strength, must correspond to class B5.

5.5. The flexural strength of lightweight concrete for screeds laid over a layer of compressible heat or sound insulating materials must be at least 2.5 MPa (25 kgf / cm 2).

5.6. With concentrated loads on the floor of more than 2 kN (200 kgf), a concrete layer should be made along the heat or sound insulating layer, the thickness of which is set by calculation.

5.7. The strength of gypsum screeds (in a state dried to constant mass) should be, MPa (kgf / cm 2), not less than:

for bulk polymer coatings 20 (200)

»The rest» 10 (100)

5.8. Prefabricated screeds from wood-shaving, cement-bonded and gypsum-fiber boards, from rolling gypsum concrete panels based on gypsum-cement-pozzolanic binder, as well as screeds from porous cement mortars should be used in accordance with albums of standard parts and working drawings approved in the prescribed manner.

5.9. Prefabricated fiberboard screeds are allowed to be used in floor structures to ensure normalized heat assimilation of the floor surface of the first floors of residential premises.

5.10. Asphalt concrete screeds may only be used for coverings made of piece grooved parquet.

6. SUBLAYERS

6.1. Non-rigid underlying layers (gravel, crushed stone, asphalt concrete, sand, slag) are allowed to be used in industrial buildings provided they are compacted with mechanical rollers.

6.2. The earthen-concrete base layer is allowed to be used only with dry base soils.

6.3. In floors that can be exposed to corrosive liquids, animal substances and organic solvents of any intensity or water, neutral solutions, oils and emulsions of medium and high intensity during operation, a concrete base layer should be used.

6.4. The thickness of the underlying layer should be set by calculation depending on the load acting on the floor, the materials used and the properties of the base soil. The thickness of the underlying layer must be at least, mm:

sandy 60

slag, gravel and crushed stone 80

concrete:

in residential and public buildings 80

v industrial premises 100

6.5. For the concrete underlayment, concrete of a compressive strength class of at least B22.5 must be used.

In cases where, according to the calculation, the tensile stress in the underlying layer 100 mm thick from concrete of class B22.5 turns out to be less than the calculated one, concrete of a lower class (but not lower than B7.5) should be used based on the provision bearing capacity underlying layer.

6.6. With concentrated loads on a floor with a non-rigid underlying layer of less than 5 kN (500 kgf) and on a floor with a concrete underlying layer of less than 10 kN (1000 kgf), the thickness of these layers must be at least given in clause 6.4. For the concrete sub-base, in this case, concrete of class B7.5 should be used.

6.7. In the concrete underlying layers of the floors of the premises, during the operation of which sharp temperature changes are possible, it is necessary to provide for the device of expansion joints, located among themselves in mutually perpendicular directions at a distance of 8-12 m.

Expansion joints in floors must match the expansion joints of buildings, and in floors with slopes for the drainage of liquids - with the floor watershed.

7. GROUND SUB-FLOORING

7.1. The floor should be arranged on soils that exclude the possibility of deformation of the structure from soil subsidence.

Peat, chernozem and other plant soils are not allowed as substrates for floors.

7.2. Natural soils with a disturbed structure or loose ones must be compacted.

7.3. When the bottom of the underlying layer is located in the zone of dangerous capillary rise of perennial or seasonal groundwater in rooms where there is no effect on the floor of sewage and other liquids of medium and high intensity, one of the following measures should be taken:

lowering the water table;

raising the floor level;

with a concrete underlying layer, the use of waterproofing to protect against groundwater in accordance with clause 4.7.

7.4. With heaving soils at the base of the floor of the premises, where freezing of these soils is possible, one of the following measures should be provided:

lowering the groundwater level below the freezing depth of the base by at least 0.8 m;

execution on the base of a heat-insulating layer with a thickness calculated from inorganic moisture-resistant materials with an average density of not more than 1.2 t / m 3;

replacement heaving soil when backfilling pits in the freezing zone of the base with practically non-porous soil.

7.5. In the surface of the base of non-rocky soil, before laying a concrete underlying layer on it, it should be provided for the indentation of crushed stone or gravel to a depth of at least 40 mm.

ANNEX 1
Mandatory

SELECTION OF THE TYPE OF FLOOR COVERING FOR INDUSTRIAL ROOMS

Coating

Limit values

Floor covering characteristics

traffic intensity

mass of objects 1, kg, falling from a height of 1 m

specific pressure from concentrated loads, N / cm 2 (kgf / cm 2)

Floor heating to temperature, ° С

intensity of impact on the floor

pedestrians and carts on rubber tires

trolleys on metal tires and when rolling round metal objects

transport on rubber tread

mineral oils and emulsions from them

organic solvents

substances of animal origin

for dust separation

by electrical conductivity

by non-sparking

concentration 2,%, no more

intensity

concentration,%, not more

intensity

coefficient WITH

intensity

1. Cement-sand

Not limited

Moderate

Not allowed

Electrically conductive

Bloodless 4

2. Cement-concrete 3

Very significant

3. Asphalt concrete

Moderate

Not allowed

Not electrically conductive

4. Mosaic-concrete (terrazzo)

Significant

Not allowed

Small 5

Electrically conductive

5. Polyvinyl acetate-concrete

Significant

Very significant

6. Latex-cement-concrete

7. Acid-resistant concrete on liquid glass with a sealing additive

Very significant

Not allowed

Electrically conductive

Sparkling

8. Heat-resistant concrete on Portland cement with chromite and slag filler

Moderate

Not allowed

9. Concrete with a hardened top layer 6; 7

Very significant

10. Slabs of heat-resistant concrete based on Portland cement with chromite and slag filler along a sand interlayer

Not allowed

11. Metal-cement on an interlayer of cement-sand mortar with a compressive strength of 30 MPa (300 kgf / cm 2) 6

Not limited

Very significant

Not allowed

Electrically conductive

Sparkling

12. Xylolite

Moderate

Not allowed 8

Not allowed

Sparkless

13. Polyvinyl acetate-sawdust

14. Polyvinyl acetate mastic

Not allowed

Dust-free

Sparkling

15. Epoxy mastic bulk 9

Dust-free

Not electrically conductive

16. Paving stones on a layer of sand 6

Moderate

Very significant

Not allowed

Electrically conductive

17. Paving stones on a layer of cement-sand mortar 6

18. Steel slabs on a fine-grained concrete interlayer

Very significant

Not allowed

19. Perforated cast iron slabs on an interlayer of fine-grained concrete

Very significant

20. Cast iron slabs with support protrusions along a sand interlayer

Very significant

3 t per slab

Not allowed

21. Face on bitumen or tar mastic

Not allowed

Significant

Not electrically conductive

Sparkless

22. Asphalt concrete slabs on a layer of bituminous mastic

Not limited

Significant

Not allowed

Not electrically conductive

Sparkless 4

23. Cement-concrete slabs on a layer of cement-sand mortar

Not allowed

Electrically conductive

24. Mosaic-concrete slabs on a layer of cement-sand mortar

Moderate

25. Marble slabs (including chipped) on a layer of cement-sand mortar

Not allowed

Moderate

Sparkling

26. Slabs of natural stone of igneous rocks (granite, etc.) on an interlayer of cement-sand mortar

Significant

Very significant

27. Ceramic tiles 11

Not allowed

Depending on the type of interlayer according to compulsory appendix 5

28. Ceramic acid-resistant tiles

Moderate

Significant

29. Slag-glass slabs

30. Cast stone tiles

31. Acid-resistant brick flat

Very significant

32. Acid-resistant brick on the edge

10 5

33. Polyvinyl chloride compound

Not allowed

Not allowed 8

Dust-free

Sparkless

34. Plank (painted)

Not allowed

200 kg per point

Not allowed

Not electrically conductive

35. Parquet boards and boards

Not limited

Not allowed

200 kg per point

Not allowed

Not electrically conductive

Sparkless

36. Superhard fibreboard

37. Block and inlaid parquet

38. Linoleum, PVC tiles

No more than 500 people / day per 1 m of the passage width

Dust-free

39. Roll based on chemical fibers

40. Earthen concrete, adobe

Not allowed 8

Electrically conductive

Sparkless 4

41. Crushed stone impregnated with bitumen

Significant

Not allowed

42. Crushed stone, gravel

Not allowed 8

Not allowed

43. Slag, earthy

Not limited

The designation adopted in the table:

WITH- coefficient of pressure on the floor of metal tires and round metal objects, determined by the formula:

where P- the greatest pressure of a wheel or rim on the floor, N (kgf);

b- width of a tire of a wheel or rim, cm;

D- wheel or rim diameter, m.

1 Solid (metal, stone) objects falling on various places on the floor (dropping loads from cars, trolleys, throwing parts over).

When objects fall on the same place on the floor from a height of 1 m (near holes, gutters, mounting points, etc.), the mass indicated in the table must be reduced by 2 times, and when falling from a height of 0.5 m, it must be increased by 1.5 times.

The impact on the floor when dragging solid objects with sharp corners and edges can be conditionally equated to impacts acting on various places on the floor when solid objects weighing 10 kg fall from a height of 1 m, and when working with sharp metal tools (shovels, etc.) - to impacts when solid objects with a mass of 5 kg fall from a height of 1 m.

2 Above the line are indicated: nitrogen, sulfuric, hydrochloric, phosphoric, hypochlorous, chromic, acetic; under the line - butyric, lactic, formic, oxalic acids.

The highest concentration of these acids is taken equal to 100%.

3 Tracked vehicles of significant intensity are allowed.

4 Allowed only when using crushed stone, sand, excluding sparking when struck by metal or stone objects.

5 Coatings that are susceptible to exposures marked with a box should only be used in conjunction with exposures marked with an underscore.

Coatings for which there are no underscored actions in the table should only be applied where actions or requirements are indicated by a box.

6 The movement of tracked vehicles is allowed without limiting the intensity.

7 To harden a concrete pavement with a hardened top layer, dry mixtures of cement with iron powder, scale and other metal-containing waste with a particle size of not more than 5 mm should be used.

8 Except for the irregular (episodic) movement of pedestrians, as well as vehicles on rubber tread, no more than 10 units / day.

9 Allowed only in rooms where dustiness in the air leads to disruption of normal operation technological equipment and transport equipped with computer numerical control.

10 Exposure to acetic acid is excluded.

11 Allowed, as a rule, in rooms with increased sanitary and hygienic requirements.

12 For oxidizing environments, no more than 5% is allowed.

Note. The types of coatings should be used for exposures not exceeding the limits established in the table.

PURPOSE OF TYPES OF FLOOR COVERINGS FOR RESIDENTIAL, PUBLIC, ADMINISTRATIVE AND DOMESTIC BUILDINGS

Premises	Coverings
1. Living rooms in apartments, dormitories, dormitories in boarding schools, rooms in hotels, holiday homes, etc.	Linoleum Parquet
2. Corridors in apartments, hostels, boarding schools, hotels, rest homes, offices, design bureaus, auxiliary buildings, more than 20 m away from the outer doors of buildings	Linoleum PVC tiles Superhard fibreboard Parquet
3. Premises of public buildings, the operation of which is not associated with the constant stay of people in them (museums, exhibitions, lobbies, train stations, foyers of entertainment enterprises, etc.)	Epoxy self-leveling 2-4 mm thick Natural stone slabs Marble slabs, including chipped
4. Offices of doctors, procedural, dressing rooms, wards in hospitals, clinics, outpatient clinics, dispensaries, sanatoriums, rest homes, children's rooms and corridors in kindergartens	Linoleum PVC tiles Parquet
5. Children's toilets in nursery gardens and hospitals	Linoleum
6a. Work rooms, offices, staff rooms in offices, design bureaus, auxiliary buildings, etc.	Linoleum
	PVC tiles
6b. Auditoriums, classrooms, laboratories, teaching rooms, etc. educational institutions Sports halls, assembly halls, auditoriums, reading rooms, etc. Outdoor clothing storage area in dressing rooms	Superhard fibreboard (only for the premises listed in item " a"And located on the floor) Parquet
7a. Bathrooms, showers, washrooms, toilets in buildings for various purposes	Cement-concrete polished 1 Mosaic concrete grinded 1 Latex cement-concrete Ceramic slabs
b. Trading halls shops and catering establishments located at a distance of more than 20 m from the outer doors, as well as located on the second and subsequent floors	Slag slabs Polyvinyl acetate-cement-concrete 1 Plank, parquet - only for the premises listed in pos. "B"
8. Premises for the preparation of groceries in stores Kitchens, sinks and procurement rooms for catering establishments Dressing rooms, soap rooms, steam rooms in baths Washing workshops in laundries	Cement-concrete polished 1 Mosaic-concrete Ceramic slabs Slag slabs
9. Kitchens in residential buildings	Linoleum PVC tiles Superhard fibreboard

_____________

1 For coatings, concrete of class B15 or higher should be used.

Notes: 1. Coverings of linoleum and PVC tiles are allowed when the traffic intensity of pedestrians does not exceed 500 people / day per 1 m of the passage width.

2. Slag-glass slabs used for flooring baths in rooms with a wet regime must have a corrugated front surface.

3. The choice of the type of floor coverings in premises in which the effects on the floors are similar to those in industrial premises should be carried out according to table. 2.

APPENDIX 3
Reference

ACCEPTED NAMES OF FLOOR LAYERS

Coating- the top layer of the floor directly exposed to operational influences.

Interlayer- an intermediate floor layer connecting the covering with the underlying floor layer or serving to cover with an elastic bed.

Waterproofing layer (layers)- a layer that prevents the penetration of sewage and other liquids through the floor, as well as the penetration of groundwater into the floor.

Screed- (base for coating) - a floor layer used to level the surface of the underlying floor or floor layer, give the floor covering on the floor a given slope, cover various pipelines, distribute loads over the non-rigid underlying floor layers on the floor.

Underlying layer- a floor layer that distributes loads on the ground.

SURFACE FINISH FLOOR COVERINGS

1 This requirement must be satisfied in rooms where dust separation from the floor leads to a disruption of the normal operation of technological equipment and automated transport with a numerical program device.

APPENDIX 5
Mandatory

TYPE OF INTERLAYER IN FLOORS

Interlayer

Interlayer thickness, mm

The maximum permissible intensity of exposure to the floor of liquids

Floor heating to temperature, ° С

water and solutions of neutral reaction

mineral oils and emulsions from them

organic solvents

substances of animal origin

concentration 1,%, no more

intensity

concentration,%, not more

intensity

Cement-sand mortar

Not allowed

Cement-sand mortar with latex additive

On liquid glass with a sealing additive

Not allowed

Based on synthetic resins (thermosets)

15 4

Hot bitumen mastic

Not allowed

Fine-grained concrete class not lower than B30

Not allowed

Less than 200 5

Thermal insulation materials

Less than 200 5

1 See footnote 2 to the app. one.

2 When filling joints with polymer mastics%.

3 When filling joints with polymer mastics 15%.

4 For oxidizing environments not more than 5%.

5 When placing hot objects, parts, molten metal spills, etc. on the floor, heating the air at floor level.

Notes: 1. Floor temperature is conventionally considered the air temperature at floor level or the temperature of hot objects in contact with the floor.

2. The type of interlayer given in the table can be applied when the impacts do not exceed the limits specified in the table. Interlayers that allow impacts, marked with a frame, are used only when such impacts are present.

1. General Provisions

2. Floor coverings

3. Interlayer

4. Waterproofing

5. Screed (base for floor covering)

6. Underlays

7. Substrate under the floors

Appendix 1. Selection of the type of floor covering in industrial premises

Appendix 2. Assignment of types of floor coverings in residential, public, administrative and residential buildings

Appendix 3. Accepted names of floor layers

Appendix 4. Surface finishing of floor coverings

Appendix 5. Type of interlayer in floors

BUILDING REGULATIONS

FLOORS

SNiP 2.03.13-88

STATE CONSTRUCTION COMMITTEE of the USSR

MOSCOW 1988

INTRODUCED by TsNIIpromzdanii Gosstroy of the USSR.

PREPARED FOR APPROVAL by the Department of Standardization and Technical Norms in Construction of the USSR State Construction Committee ( V. M. Skubko).

With the introduction of SNiP 2.03.13-88 "Floors" from January 1, 1989, the chapter of SNiP II-V.8-71 "Floors. Design standards ".

When using a regulatory document, one should take into account the approved changes in building codes and regulations and state standards publishedvmagazine "Bulletinconstruction equipment "," Collectionchangesto building codes and regulations "Gosstroy of the USSRandinformation index "State standards of the USSR" Gosstandart of the USSR.

These standards apply to the design of floors for industrial, residential, public, office and household buildings.

Floors with a standardized index of heat assimilation of the floor surface should be designed taking into account the requirements of SNiP II-3-79.

The design of the floors of livestock, poultry and fur farming buildings and premises should be carried out taking into account the requirements of SNiP 2.10.03-84.

These standards do not apply to the design of removable floors; floors located on permafrost and heated floors.

The accepted names of floor elements are given in reference annex 3.

1. GENERAL PROVISIONS

1.1. The choice of a constructive floor solution should be carried out based on the technical and economic feasibility of the decision made in the specific construction conditions, taking into account the provision of:

reliability and durability of the adopted design;

economical use of cement, metal, wood and other building materials;

the most complete use of the physical and mechanical properties of the materials used;