Russian Federation

"INSULATING AND FINISHING COATINGS. BUILDING STANDARDS AND RULES. SNiP 3.04.01-87" (approved by the Decree of the USSR State Construction Committee of 04.12.87 N 280)

APPROVED BY
Decree
Gosstroy of the USSR
of December 4, 1987
N 280

DEVELOPED TSNIIOMTP Gosstroy of the USSR (Candidates of Technical Sciences N.N. Zavrazhin - head of the topic, V.A. D. B. Baulin), NIIMosstroy of the Moscow City Executive Committee (Doctor of Technical Sciences Prof. E. D. Belousov, Candidate of Technical Sciences G. S. Agadzhanov), SKTB Glavtonnelmetrostroy of the USSR Ministry of Transport (Candidates of Technical Sciences V. V. Krylova , V.G. Golubov), Department of Soyuzmetrospetsstroy of the USSR Ministry of Transport (A.P. Levina, P.F.

INTRODUCED TSNIIOMTP Gosstroy USSR.

PREPARED FOR APPROVAL by the Department of Standardization and Technical Norms in Construction of the USSR State Construction Committee (DI Prokofiev).

With the introduction of SNiP 3.04.01-87 "Insulation and finishing coatings" SNiP III-20-74 *, SNiP III-21-73 *, SNiPIII209 are no longer valid; V.14-72; GOST 22753-77, GOST 22844-77, GOST 23305-78.

When using regulatory document it is necessary to take into account the approved changes in building codes and regulations and state standards published in the journal "Bulletin of Construction Technology", "Collection of changes to building codes and regulations" of the USSR State Construction Committee and the information index "USSR State Standards" of the USSR State Standard.

1.1. Real building codes and the rules apply to the production and acceptance of work on the installation of insulating, finishing, protective coatings and floors of buildings and structures, with the exception of work due to special conditions operation of buildings and structures.

1.2. Insulation, finishing, protective coatings and floor structures must be performed in accordance with the project (finishing coatings in the absence of project requirements - according to the standard). Replacement of materials, products and compositions provided for by the project is allowed only by agreement with the design organization and the customer.

1.3. Work on the production of thermal insulation works can begin only after the execution of an act (permit) signed by the customer, representatives of the installation organization and the organization performing thermal insulation work.

1.4. The device of each element of insulation (roof), floor, protective and finishing coatings should be carried out after checking the correctness of the implementation of the corresponding underlying element with the drawing up of an inspection report for hidden works.

1.5. With appropriate justification, in agreement with the customer and the design organization, it is allowed to designate methods of production of work and organizational and technological solutions, as well as establish methods, volumes and types of registration of quality control of work that differ from those provided for by these rules.

3.1. Finishing work, with the exception of facades, must be carried out at a positive temperature the environment and trimmed surfaces not lower than 10 ° С and air humidity not more than 60%. This temperature in the room must be maintained around the clock, at least 2 days before the start and 12 days after the end of work, and for upholstery work - before the facility is put into operation.

3.2. Work on the application of protective coatings should be carried out at an ambient air temperature and protected surfaces not lower than ° С:

10 - for paint and varnish protective coatings from compositions prepared on the basis of natural resins; mastic and putty coatings from silicate compounds; pasting protective coatings using bitumen roll materials, polyisobutylene plates, Butylcor-S plates, duplicated polyethylene; rubber coatings; facing and lining coatings using acid-resistant silicate putties and bituminol mastics; for acid-resistant concrete and silicate-polymer concrete;

15 - for paint and varnish reinforced and unreinforced continuous coatings from compositions prepared on the basis of synthetic resins; mastic coatings and sealants from compositions based on synthetic rubbers and nairite; coatings from sheet polymeric materials; facing and lining coatings using putties such as "Arzamit", "Furankor", as well as polyester, epoxy resins and resins with epoxy additives; for coatings made of polymer concrete and polymer cement coatings;

25 - for coatings from the "Polan" composition.

3.3. Finishing work should be carried out in accordance with the work production project (PPR) for the construction of buildings and structures. Before the beginning finishing works the following work must be performed:

the finished premises are protected from atmospheric precipitation;

waterproofing, heat and sound insulation and leveling floor screeds are arranged;

sealed seams between blocks and panels;

the joints of window, door and balcony blocks were sealed and insulated;

glazed skylights;

embedded products were installed, tests of heat and water supply and heating systems were carried out.

Plastering and cladding (according to the project) of surfaces in the places of installation of embedded products of sanitary-technical systems must be performed prior to their installation.

3.4. Before finishing the facades, the following work must additionally be performed:

External waterproofing and roofing with details and abutments; installation of all floor structures on balconies;

Installation and fixing of all metal pictures of the edging of architectural details on the facade of the building;

installation of all fixing devices for downpipes (according to the project).

3.5. Anti-corrosion work should be carried out in accordance with the requirements of SNiP 3.04.03-85 "Protection of building structures and structures from corrosion".

3.6. When preparing and preparing finishing and anti-corrosion compounds, the requirements of table must be observed. eight.

Table 8

4.1. Prior to the commencement of work on the construction of floors, measures for stabilization, prevention of heaving and artificial consolidation of soils, lowering groundwater, as well as adjoining to expansion joints, channels, pits, gutters, ladders, etc. The elements of the bordering of the coating must be completed before its installation.

4.2. The subgrade under the floors must be compacted in accordance with SNiP 3.02.01-87 " Earthworks, bases and foundations ".

Vegetable soil, silt, peat, as well as bulk soils with an admixture of construction waste under the subsoil are not allowed.

4.3. The device of floors is allowed at the air temperature in the room, measured in the cold season near door and window openings at a height of 0.5 m from the floor level, and laid floor elements and materials to be laid - not lower than, ° С:

15 - when installing coatings from polymeric materials; this temperature must be maintained for 24 hours after the end of work;

10 - when constructing floor elements from xylene and from mixtures that include liquid glass; this temperature must be maintained until the laid material acquires a strength of at least 70% of the design;

5 - when installing floor elements using bituminous mastics and their mixtures, which include cement; this temperature must be maintained until the material acquires a strength of at least 50% of the design;

0 - when installing floor elements from soil, gravel, slag, crushed stone and from piece materials without gluing to the underlying layer or on sand.

4.4. Before the installation of floors, in the construction of which products and materials based on wood or its waste, synthetic resins and fibers, xylolite coatings are incorporated, plastering and other work related to the possibility of wetting the coatings must be performed in the room. When installing these floors and in the subsequent period before putting the object into operation, the relative humidity in the room should not exceed 60%. Drafts are not allowed indoors.

4.5. Floors resistant to aggressive environments must be performed in accordance with the requirements of SNiP 3.04.03-85.

4.6. Work on the construction of asphalt concrete, slag and crushed stone floors should be carried out in accordance with SNiP 3.06.03-85 (Section 7).

4.7. Requirements for materials and mixtures for special types floors (heat-resistant, radiation-resistant, non-sparking, etc.) must be specified in the project.

4.8. Substrates, screeds, connecting layers (for ceramic, concrete, mosaic and other tiles) and monolithic coatings on a cement binder should be under a layer of permanently moist water-retaining material for 7-10 days after installation.

4.9. Standard operation of xylolite floors, made of cement or acid-resistant concrete or mortar, as well as from piece materials laid on interlayers of cement-sand or acid-resistant (on liquid glass) mortar, is allowed after the concrete or mortar has acquired the design compressive strength. Pedestrian traffic on these floors can be allowed not earlier than the acquisition by concrete of monolithic coatings of compressive strength equal to 5 MPa, and by the solution of the interlayer under piece materials - 2.5 MPa.

BUILDING REGULATIONS

INSULATING AND FINISHING COATINGS

SNiP 3.04.01-87

STATE CONSTRUCTION COMMITTEE of the USSR

Moscow 1988

DEVELOPED TSNIIOMTP Gosstroy of the USSR (Candidate of Technical Sciences N.N. Zavrazhin - the head of the topic, V.A. K. Baulin), NIIMosstroy of the Moscow City Executive Committee (Doctor of Technical Sciences Prof. E. D. Belousov, Ph.D. G. Golubov), Administration of the Soyuzmetrospetsstroy of the USSR Ministry of Transport (A.P. Levina, P.F.

INTRODUCED TSNIIOMTP Gosstroy USSR.

PREPARED FOR APPROVAL by the Department of Standardization and Technical Norms in Construction of the USSR State Construction Committee (DI Prokofiev).

With the introduction of SNiP 3.04.01-87 "Insulation and finishing coatings" SNiP III-20-74 *, SNiP III-21-73 *, SNiP III-V.14-72 are no longer valid; GOST 22753-77, GOST 22844-77, GOST 23305-78.

When using a normative document, one should take into account the approved changes to building codes and regulations and state standards published in the Bulletin of Construction Equipment, the Collection of Changes to Building Codes and Regulations of the USSR State Construction Committee and the USSR State Standards Information Index of the USSR State Standard.

1. GENERAL PROVISIONS

1.1. These building codes and regulations apply to the production and acceptance of works on the installation of insulating, finishing, protective coatings and floors of buildings and structures, with the exception of works due to the special operating conditions of buildings and structures.

1.2. Insulation, finishing, protective coatings and floor structures must be performed in accordance with the project (finishing coatings in the absence of project requirements - according to the standard). Replacement of materials, products and compositions provided for by the project is allowed only by agreement with the design organization and the customer.

1.3. Work on the production of thermal insulation works can begin only after the execution of an act (permit) signed by the customer, representatives of the installation organization and the organization performing thermal insulation work.

1.4. The device of each element of insulation (roof), floor, protective and finishing coatings should be carried out after checking the correctness of the implementation of the corresponding underlying element with the drawing up of an inspection report for hidden works.

1.5. With appropriate justification, in agreement with the customer and the design organization, it is allowed to designate methods of production of work and organizational and technological solutions, as well as establish methods, volumes and types of registration of quality control of work that differ from those provided for by these rules.

BUILDING REGULATIONS

INSULATING AND FINISHING COATINGS

SNiP 3.04.01-87

STATE BUILDING
USSR COMMITTEE

Moscow 1988

DEVELOPED TSNIIOMTP Gosstroy of the USSR (Candidates of Technical Sciences N.N. Zavrazhin - head of the topic, V.A. D. B. Baulin), NIIMosstroy of the Moscow City Executive Committee (Doctor of Technical Sciences Prof. E. D. Belousov, Candidate of Technical Sciences G. S. Agadzhanov), SKTB Glavtonnelmetrostroy of the USSR Ministry of Transport (Candidates of Technical Sciences V. V. Krylova , V.G. Golubov), Department of Soyuzmetrospetsstroy of the USSR Ministry of Transport (A.P. Levina, P.F.
INTRODUCED TSNIIOMTP Gosstroy USSR.
PREPARED FOR APPROVAL by the Department of Standardization and Technical Norms in Construction of the USSR State Construction Committee (DI Prokofiev).
With the introduction of SNiP 3.04.01-87 "Insulation and finishing coatings" SNiP III-20-74 *, SNiP III-21-73 *, SNiP III V.14-72 are no longer valid; GOST 22753-77, GOST 22844-77, GOST 23305-78.
When using the normative document, one should take into account the approved changes in building codes and regulations and state standards published in the journal "Bulletin of Construction Equipment", "Collection of changes to building codes and regulations" of the USSR State Construction Committee and the information index "USSR State Standards" of the USSR State Standard.
State Building norms and rules SNiP 3.04.01-87
construction committee of the USSR (Gosstroy USSR) Insulation and finishing coatings Replaces:
SNiP III-20-74 *;
SNiP III-21-73 *;
SNiP III-B.14-72;
GOST 22753-77;
GOST 22844-77;
GOST 23305-78
1. GENERAL PROVISIONS
l.l. These building codes and regulations apply to the production and acceptance of works on the installation of insulating, finishing, protective coatings and floors of buildings and structures, with the exception of works due to the special operating conditions of buildings and structures.
1.2. Insulating, finishing, protective coatings and floor structures must be carried out in accordance with the project (finishing coatings in the absence of project requirements - according to the standard). Replacement of materials, products and compositions provided for by the project is allowed only by agreement with the design organization and the customer.
1.3. Work on the production of thermal insulation works can begin only after the execution of an act (permit) signed by the customer, representatives of the installation organization and the organization performing thermal insulation work.
1.4. The device of each element of insulation (roofing), floor, protective and finishing coatings should be carried out after checking the correctness of the implementation of the corresponding underlying element with the drawing up of an inspection certificate for hidden works.
1.5. With appropriate justification, in agreement with the customer and the design organization, it is allowed to designate methods of production of work and organizational and technological solutions, as well as establish methods, volumes and types of registration of quality control of work that differ from those provided for by these rules.
Introduced by TsNIIOMTP Gosstroy of the USSR Approved by the Decree of the State construction committee the USSR
dated December 4, 1987 No. 280 Term
introduction
effective 1 July 1988
2. INSULATING COATINGS AND ROOFS
GENERAL REQUIREMENTS
2.1. Insulation and roofing work is allowed to be performed from 60 to minus 30 ° C of the environment (work with the use of hot mastics - at an ambient temperature of at least minus 20 ° C, using water-based compounds without antifreeze additives at least 5 ° C ).
2.2. In the foundations for roofing and insulation, in accordance with the project, the following work must be performed:
to seal the seams between the precast plates;
arrange temperature-shrinkage seams;
mount embedded elements;
to plaster sections of vertical surfaces of stone structures to the height of the abutment of the roll or emulsion-mastic carpet of the roof and insulation.
2.3. Insulating compounds and materials should be applied in continuous and uniform layers or in one layer without gaps and sagging. Each layer must be arranged on the hardened surface of the previous one with leveling of the applied compositions, with the exception of painting. When preparing and preparing insulating compounds, the requirements of table should be observed. 1.
Table 1

Bitumen and tar (pitch) must be used cleaned of impurities and dehydrated. Heating should not exceed, ° С:
bitumen - 180
tar (pitch) - 140

± 5%
± 7% Measuring, periodically, but not less than 4 times per shift, work log
Fillers (aggregates) must be sieved through a sieve with mesh sizes, mm:
for sand - 1.5
for dusty - 2
for fibrous - 4 - The same
Permissible moisture content of fillers (aggregates):
for sand
for formulations with sealing additives
for other formulations

Up to 2%
up to 5%

up to 3% Measuring, periodic, at least 4 times per shift, work log
Temperature of emulsions and their components, ° С:
bitumen - 110
emulsifier solution - 90
latex (when introduced into an emulsion) - 70

10 ° C
+ 7 ° C
Minus 10 ° С The same, at least 5-6 times per shift, work log
Uniform distribution of bitumen in bitumen perlite and bitumen-claydite - 90% ± 2% The same
Compaction coefficient of bitumen-perlite and bitumen-claydite under a pressure of 0.67-0.7 MPa - not less than 1.6 - "
Temperature when applying mastics, ° С:
hot bituminous - 160
hot tar - 130
cold (in winter) - 65

20 ° C
+ 10 ° C
+ 5 ° С
Insulation device dispersed-reinforced with fiberglass (fiberglass fibers):
fiber dimensions - 20 mm
weight ratio of alumina cement to Portland cement - 90: 10
the content in Portland cement grade is not lower than 400, tricalcium aluminate by weight - not more than 8%. Glass tow should be free from paraffin wax

20 mm
Up to 80:20 Measuring, periodic at least 16 measurements per shift (every 0.5 hours of operation), work log
Heavy concrete for the construction of roofs without an insulating coating (roofing) must contain:
plasticizing and air-healing additives, aggregates from fractionated sand and coarsely fractionated crushed stone;
Portland cement - hydrophobic, containing no more than 6% calcium aluminate;
crushed stone of igneous rocks or gravel with a temporary resistance of at least 100 MPa in a water-saturated state; granulometric composition of crushed stone, mm:
5-10
10-20
sand of the protective layer of the fineness module - 2.1 - 3.15 -

25-50 %
75-50% Measuring, periodic, at least 4 times per shift, work log
Gravel and other frost-resistant mineral materials should be sorted and washed - Ditto

PREPARATION OF BASES AND SUBSTANCES
INSULATION ELEMENTS

2.4. Substrates must be dedusted before applying priming and insulating compounds, including adhesives and mastics.
2.5. Leveling screeds (made of cement-sand, gypsum, gypsum-sand mortars and asphalt-concrete mixtures) should be arranged with grippers 2-3 m wide along guides with leveling and compaction of the surface.
2.6. The priming of the surface before applying the adhesives and insulating compounds must be continuous without gaps and breaks. The priming of screeds made of cement-sand mortars should be carried out no later than 4 hours after their laying, using primers on slowly evaporating solvents (except for screeds with a surface slope of more than 5%, when priming should be carried out after they have hardened). When preparing the surface of the base, it is necessary to comply with the requirements of table. 2.
The primer must have a strong adhesion to the substrate, and there must be no traces of the binder on the tampon attached to it.
table 2

Technical requirements Limit deviations Control (method, volume, type of registration)
Permissible deviations of the base surface for roll and rollless emulsion and mastic insulation and roofing:
along the slope and on the horizontal surface
across a slope and on a vertical surface
from piece materials:
along and across the slope -

± 10 mm Measuring, technical inspection, at least 5 measurements for every 70-100 m2 of surface or on a smaller area in places determined by visual inspection
Deviations of the element plane from the specified slope (over the entire area) 0.2% The same
Structural element thickness (from design) 10% "
The number of irregularities (smooth outline with a length of not more than 150 mm) on a surface area of ​​4 m2 Not more than 2 "
Primer thickness, mm:
for roofs made of weldable materials - 0.7
when priming the hardened screed - 0.3
when priming the screeds within 4 hours after applying the mortar - 0.6
5 %

ten % "
2.7. The moisture content of the base before applying the primer should not exceed the values ​​indicated in table. 3. On damp substrates, it is allowed to apply only water-based primers or insulating compounds, if the moisture appearing on the surface of the substrate does not violate the integrity of the coating film.
2.8. The metal surfaces of pipelines, equipment and fasteners to be insulated must be cleaned of rust, and those subject to corrosion protection must be treated in accordance with the project.
2.9. Insulation of installed equipment and pipelines should be carried out after their permanent fixation in the design position. Thermal insulation of equipment and pipelines in places that are inaccessible for insulation must be carried out completely before installation, including the installation of cover sheaths.
Insulation of pipelines located in non-passable channels and trays must be performed before they are installed in the channels.
2.10. Equipment and pipelines filled with substances must be emptied of them before the start of the insulation work.
2.11. When working in negative temperatures, rolled insulating materials must be warmed up to a temperature of at least 15 ° C within 20 hours, rewound and delivered to the place of installation in an insulated container.
2.12. When installing roof insulation from large-sized complex panels with a factory-applied roof carpet, the joints of the roof panels should be sealed and pasted after checking the insulation of the mounted panels.

INSULATION DEVICE AND ROLLED ROOF

2.13. Roofing and waterproofing carpets made of roll materials with a mastic layer pre-melted at the factory must be glued onto a pre-primed base by melting or liquefying (plasticizing) the mastic layer of the material without the use of adhesive mastics. The adhesion strength must be at least 0.5 MPa.
The liquefaction of the mastic layer should be carried out at an air temperature of at least 5 ° C with the simultaneous laying of the rolled carpet or before it is laid (depending on the ambient temperature).
The melting of the mastic layer should be carried out simultaneously with the layout of the panels (the temperature of the melted mastic is 140-160 ° C). Each laid layer of the roof must be rolled with a roller before the device of the next one.
2.14. Roll materials must be marked at the place of installation before gluing; the layout of panels of rolled materials should ensure compliance with the values ​​of their overlap when gluing.
The mastic should be applied in a uniform continuous, without gaps or stripe layer in accordance with the project. When the panels are point-glued to the base, the mastic should be applied after the panels are rolled out at the locations of the holes.
2.15. When installing roll insulation or roofing using adhesives, hot mastics should be applied to the primed base immediately before gluing the panels. Cold mastics (adhesives) should be applied to the base or panel in advance. Between the application of adhesives and the gluing of the panels, it is necessary to observe technological breaks, which ensure a strong adhesion of the adhesives to the base.
Each layer should be laid after the mastics have hardened and a firm adhesion to the base of the previous layer has been achieved.
2.16. When installing roofs, sheets of roll materials should be glued:
in the direction from low to high areas with the location of the panels along the length perpendicular to the water drain with roof slopes up to 15%;
in the direction of the flow - with roof slopes of more than 15%.
Cross-sticking of insulation and roof panels is not allowed. The type of sticker of the rolled carpet (solid, strip or dotted) must correspond to the project.
2.17. When gluing, the panels of insulation and roofs should be laid with an overlap of 100 mm (70 mm across the width of panels of the lower layers of the roof of roofs with a slope of more than 1.5%).
2.18. When installing insulation or roofing, glass cloth must be spread, laying without the formation of waves, immediately after applying hot mastic and covered with mastic with a thickness of at least 2 mm.
Subsequent layers should be laid in the same way after the mastic of the lower layer has cooled.
2.19. Temperature-shrinkage joints in screeds and joints between floor slabs must be covered with strips of rolled material up to 150 mm wide and glued on one side of the seam (joint).
2.20. In places where it adjoins the protruding surfaces of the roof (parapets, pipelines, etc.), the roofing carpet should be raised to the top of the screed edge, glued on mastic with filling of the upper horizontal seams. Bonding of additional layers of roofing should be performed after the installation of the top layer of the roof immediately after the application of the adhesive mastic in a continuous layer.
2.21. When gluing the roofing carpet panels along the roof slope, the upper part of the lower layer panel should overlap the opposite slope by at least 1000 mm. The mastic should be applied directly under the rolled roll in three strips 80-100 mm wide. Subsequent layers must be glued on a continuous layer of mastic.
When gluing the panels across the roof slope, the upper part of the panel of each layer laid on the ridge should overlap the opposite roof slope by 250 mm and be glued on a continuous layer of mastic.
2.22. When installing a protective gravel coating on the roofing carpet, it is necessary to apply hot mastic with a continuous layer 2 - 3 mm thick and 2 m wide, sprinkling immediately over it a continuous layer of gravel, cleaned of dust, 5-10 mm thick. The number of layers and the total thickness of the protective coating must correspond to the design.
2.23. When installing roll insulation and roofing, it is necessary to comply with the requirements of table. 3.
Table 3
Technical requirements Limit deviations Control (method, volume, type of registration)
The permissible moisture content of the bases when applying all compounds, except for water-based compounds, should not exceed:
concrete
cement-sand, gypsum and gypsum-sand
any substrates when applying water-based formulations

Before the appearance of surface-drop moisture Measuring, technical inspection, at least 5 measurements evenly for every 50-70 m2 of basis, registration
Temperature when applying hot mastics, ° С:
bituminous - 160
tar - 130

20 ° C
+ 10 ° С Measuring, periodic, at least 4 times per shift, work log
The thickness of the mastic layer when gluing the roll carpet, mm:
hot bitumen - 2.0
intermediate layers - 1.5
cold bituminous - 0.8

± 10%
± 10%
± 10% Measurement, technical inspection, at least 5 measurements for every 70-100 m2 in places determined by visual inspection, work log
Thickness of one layer of insulation, mm:
cold asphalt mastics - 7
cement mortars - 10
emulsions - 3
polymer compositions (such as "Roofleit" and "Venta") - 1 - Measuring, technical inspection, at least 5 measurements for every 70-100 m2 in places determined by visual inspection, work log

INSULATION DEVICE AND ROOF OF POLYMER
AND EMULSION-BITUMEN COMPOSITIONS

2.24. When installing insulation and roofs made of emulsion-mastic compounds, each layer of the insulating carpet should be applied continuous, without breaks, of uniform thickness after the primer or the lower layer has hardened.
2.25. When installing insulation and roofing made of polymer compositions such as "Roofleit" and "Venta", they must be applied with high-pressure units that ensure the density, uniform thickness of the coating and the adhesion strength of the coating to the base not less than 0.5 MPa. When using cold asphalt emulsion mastics, the supply and application of the compositions should be carried out by units with screw pumps (mechanical action), which ensure the adhesion of the coating to the base not less than 0.4 MPa.
2.26. When installing insulation and roofing made of emulsion-mastic compounds reinforced with fiberglass fibers, their application should be carried out with aggregates that ensure the production of fibers of the same length, uniform distribution in the composition and density of the insulating coating.
2.27. When installing insulation and roofing made of polymer and emulsion-mastic compositions, the requirements of table must be observed. 3. The adjoining roofs should be arranged similarly to the device for rolled roofs.

INSULATION DEVICE FROM CEMENT MORTARS, HOT ASPHALT MIXTURES, BITUMEN PERLIT AND BITUMOCERAMZITE

2.28. Bituminous perlite, bitumen claydite, cement mortars, hot asphalt mixtures with a surface slope of up to 25% must be laid on lighthouse battens in strips 2-6 m wide in layers of uniform thickness (no more than 75 mm) with compaction and smoothing of the layer surface.
Each layer must be applied after the previous one has hardened.
2.29. When installing cement waterproofing from solutions using waterproof expanding cements (WRC), waterproof non-shrinking cements (VBC) or Portland cement with sealing additives, the compositions should be applied to the base surface moistened with water.
Each subsequent layer should be applied no later than 30 minutes (when using VRC and VBC compounds) or no more than a day (when using compounds on Portland cement with sealing additives) after the previous layer has hardened.
Cement waterproofing within two days after application (1 hour when using VBC and VRC) must be protected from mechanical stress.
2.30 Moistening of cement waterproofing during hardening should be carried out with a spray jet of water without pressure when using the following compounds:
VRC and VBC - 1 hour after application and every 3 hours during the day;
on Portland cement with sealing additives - 8-12 hours after application, and then 2-3 times a day for 14 days.
2.31. When installing insulation from bitumen perlite, bitumen claydite, waterproofing from cement mortars and hot asphalt mixtures, mastics and bitumen, it is necessary to comply with the requirements of Table. 4.
Table 4
Technical requirements Limit deviations Control (method, volume, type of registration)
Permissible surface deviations (when checking with a two-meter rail):
horizontally
vertically

element plane from a given slope - 0.2%
thickness of the coating element -
-5...+10 %

± 5 mm
-5 ... + 10 mm

No more
150 mm
No more
3.0 mm Measuring, at least 5 measurements for every 50 - 100 m2 of surface or on a smaller area in places determined by visual inspection

Mobility of compositions (mixtures) without plasticizers, cm:
when applied by hand - 10
when applied with units with piston or screw pumps - 5
when using plasticizers - 10

2 cm
+ 4 cm

2 cm Measuring, at least 3 measurements for every 70-100 m2 of coating surface
The temperature of hot asphalt mixtures, bitumen perlite and bitumen-keramzite during application is at least 120 ° C - Measuring, periodic, at least 8 times per shift, work log

... Full version of the document with tables, images and attachments in the attached file ...

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