Waterproof construction special program, very detailed!

Objective
1. Preparation is based on
2. Engineering Profile
3. Classification of waterproofing and construction environment requirements
3.1 Waterproof classification
3.2 Waterproof construction environment requirements
4. Basement waterproof construction points
4.1 concrete pouring process technical requirements
4.1.1 basement concrete pouring
4.1.2 waterproof concrete construction seam retention requirements and treatment measures
4.1.3 concrete pouring methods and maintenance
4.2 waterproof roll construction process
4.2.1 grass-roots requirements
4.2.2 Construction process and key points
4.2.3 quality acceptance
5. Waterproof paint construction points
5.1 waterproof coatings
5.2 paint waterproof layer construction points
6. Roof coil waterproofing
6.1 roof waterproof grade and defense requirements
6.2 roof waterproof basic requirements
6.3 coil waterproof roof construction
6.4 protective layer and isolation layer construction
6.5 eaves, eaves ditch, trench, water drop and other details of the construction
7. Quality assurance measures
7.1 waterproof concrete
7.2 cement mortar waterproof layer
7.3 roll waterproof layer
7.4 paint waterproof layer
8. Waterproofing project construction quality requirements and treatment
8.1 waterproofing project construction quality requirements
8.1.1 underground building waterproofing project construction quality requirements
8.1.2 roof waterproofing project construction quality requirements
8.1 .3 Construction quality requirements of indoor waterproofing project
8.2 waterproofing project construction quality treatment
8.2.1 underground waterproofing project construction quality treatment
8.2.2 roof waterproofing project construction quality treatment
9. The finished product
9.1 Finished product protection management
9.2 finished product rate protection measures
1. Preparation of records based on
1.1 construction drawings, drawing review opinions, design changes, drawings review.
1.2 national mandatory technical quality standards, construction acceptance norms, procedures.
1.3 National, industry and local policies, laws, decrees, regulations,

.
1.4 relevant norms, standards, laws and regulations;
"Water-resistant Construction of Underground Buildings" 10J301
"Flat RoofIng Construction" 12J201
"Quality Acceptance Specification for Roofing Works" GB 50207-20 12
"Underground WaterproofIng Project Quality Acceptance Standard" GB 50208-2011
"Uniform Standard for Construction Quality Acceptance" GB 50300-2013
Article 50204-2015
2.Engineering Overview
Basement soleplate waterproof:
sidewall waterproof:
Roof waterproof:
basement floor, cover below Exterior walls, roofs where there are waterproofing practices through the wall pipes see 10J301 (1/54)
basement floor, covered under the external wall, top plate after pouring waterproofing practices:
3. waterproof classification and construction environment requirements
3.1 waterproof classification
(1) underground project waterproof rating is divided into 4 levels, all levels of standards should meet the requirements of the following table:
underground project waterproof rating standard
(2) roof waterproof rating is divided into 2 levels, specific reference to the following table:

Roof waterproof rating and defense requirements
3.2 waterproof construction environment requirements
(1) underground waterproofing project construction period, must maintain the stability of groundwater at the bottom of the project at a minimum elevation of 500mm below, if necessary, take precipitation measures to keep the pit dry.
(2) indoor waterproof construction, the grass must be dry, water content is not greater than 10%.
(3) roof waterproof construction, the grass should be clean, dry, water content is not greater than 10%.
(4) Waterproofing project waterproof layer shall not be in rainy days, snow days and five levels and above when the wind is strong, the temperature of its construction environment should comply with the following table:
waterproof layer construction environment temperature conditions
4. basement waterproof construction points
4.1 concrete Pouring process technology requires
4.1.1 basement concrete pouring
1, the project basement waterproof concrete grade of P8, concrete strength rating of C35 to C50, basic protection layer of 50mm, basement facade water protection layer of 50mm. Point me: to receive the project gift package
2, waterproof concrete matching ratio should be determined by test, and should comply with the following provisions
(1) cement should choose ordinary silicate cement or silicate cement, the use of other cement should be determined by test.
(2) the anti-permeable water pressure value of the test matching requirement should be 0.2MPa higher than the design value.the total amount of
(3) should not be less than 320kg/m3, of which the amount of cement should not be less than 280kg/m3, the amount of powder ash should be 20% to 30% of the total amount of gel material, the amount of silicon powder should be 2% to 5% of the total amount of gel material.
(4) ordinary waterproof concrete collapse should not be greater than 50mm, pumping into the pump collapse degree should be 100 to 140mm.
(5) the hydrogel ratio shall not be greater than 0.50, and the water glue ratio shall not be greater than 0.45 when there is an aggressive medium.
(6) sand rate should be 35% to 40%, pumping can be increased to 45%.
(7) ash sand ratio should be 1:1.5 to 1:2.5.
(8) the chlorine ion content of the mix of concrete should not exceed 0.1% of the total amount of gel material, the total alkali content of various materials in concrete, i.e. the content of sodium oxide shall not be greater than 3kg/m3.
4.1.2 Waterproof concrete construction seam retention requirements and treatment measures
(1) waterproof concrete should be continuously poured, it is advisable to leave less construction seam
s;
B, vertical construction seams should avoid groundwater and fissure water more lots, and should be combined with deformation seams.
The horizontal construction seam of the basement floor of this project is located on the basement wall plate, 300mm higher than the bottom plate surface, and in accordance with the requirements of the design specification, the steel plate watering belt is set up;
(2) Treatment of waterproof concrete construction seams
Construction seams should be done in accordance with the design and specification requirements of the construction seam waterproof construction; construction seam construction should comply with the following specifications:
A, horizontal construction seams before pouring concrete, should be its surface Floating slurry and debris removal, and then lay the net slurry or coating concrete interface treatment agent, cement base penetration crystalline waterproof coating and other materials, and then lay 30 to 50mm thick 1:1 cement mortar, and should be poured concrete in time.
B, vertical construction seam pouring concrete, should clean its surface, and then painted concrete interface treatment agent or cement base penetration crystalline waterproof coating, and should be poured concrete in a timely manner.
C, water expansion stop strip (glue) should be closely attached to the seam surface, the selected water expansion stop (glue) should have slow expansion performance, 7d net expansion rate should not be greater than 60% of the final expansion rate, the final expansion rate should be greater than 220%.
Basement top beam, plate construction sewing to do
after the pouring belt
4.1.3 concrete pouring method and maintenance
(1) basement concrete pouring, the use of plug-in vigration, each vibration point of the vibration time, should make the concrete no longer bubble up, the surface no longer appears floating pulp and no longer subside.
(2) concrete vibration, the oscillator should be quickly inserted and slowly pulled, the moving spacing should not be greater than 1.5 times the radius of the action of the vistifier, and the distance from the template should not be greater than 0.5 times the radius of its action.
(3) basement wall slab concrete is layered pouring, each layer thickness of 300 to 500mm, the upper concrete vibration when the vibrationer should be inserted into the lower concrete depth should not be less than 50mm.
(4) basement wall concrete vibration using the secondary vibration method, that is, after the completion of the first vibration, interval of 20 to 30 minutes for secondary vibration, effectively discharge the concrete gas and excess water, improve the solidity of the concrete, increase the waterproof performance of the concrete itself.
(5) floor concrete is formed once and advanced in turn.
(6) In the process of concrete pouring, the situation of templates, brackets, rebar, pre-buried parts and reserved holes should be observed frequently, and when deformation and displacement are found, timely measures should be taken to deal with them.
(7) In order to reduce cracks in the concrete surface, the basement floor concrete lighting using three wipe pressure, the first time with two meters of aluminum scraper according to the standard height of the initial scraping flat, the second time with the light harvester to level the dust, the third time to wait for the concrete after the initial condensation, manual iron plate slow pressure.
(8) the basement wall panels and soleplates are poured and shall be maintained in a timely manner for a period of not less than 14 days.
(9) floor concrete maintenance using plastic film cloth maintenance, its outer surface should be covered tightly wrapped, and should protect the plastic cloth with condensate.
stamped or installed templates and support frames on the top (10) roof and soleplate until the poured concrete strength has reached 1.2N/mm2.
4.2 waterproof coil construction process
4.2.1 grass-roots requirements
1, before laying rolls, deal with the grass-roots. If the grass-roots defects or water collection and other phenomena, must be treated, qualified before waterproof layer construction.
2, yin and yang corners, should be made into fillets or blunt corners. Fillet radius and blunt angle dimensions should meet design requirements.
4.2.2 Construction process and key points
Clean up and repair the grass-roots - brush the grass-roots treatment agent - spread the coil additional layer - spread the roll - hot-melt seal edge - water storage test - protective layer
1. Clean up and repair the grass roots:
grass for a pressure light structure layer or mortar to find a flat layer, before construction will be accepted qualified grass surface dust, debris clean up, to ensure that the surface level, solid, dry, clean, and must not have sand, cracking and empty drum and other defects, all yin and yang corners should be made with a radius of 50mm arc, the inner drainage of water around the mouth should be made slightly lower pits.
2. Brushing the base treatment agent: before
brushing the base treatment agent, apply a high-pressure hair dryer to blow the grass surface floating ash clean. The water content of the grass-roots surface should not be greater than 9%, the simple inspection method is to lay 1m coil flat dry on the flat layer, sit 3-4h after opening the inspection, find the flat covering area and the roll material on the watermark, can be constructed. The grass-roots treatment agent should be compatible with the materiality of the coil, the use of neoprene asphalt adhesive as a grass-roots treatment agent, should be in accordance with the instruction manual to add neoprene asphalt adhesive to industrial gasoline dilution, stirring evenly, with a long roll brush evenly painted on the grass surface, after 4h, began to lay the coil.
3. Laying coil additional layer:
construction waterproof layer, in the daughter wall, water drop, pipe root, trench, eaves, yin and yang corner and other details first do waterproof additional layer, the additional scope should comply with the design and roof engineering technical specifications.
4. Spreading coils:
(1) high-polyseism SBS modified asphalt coil hot melting method construction environment temperature should not be lower than -10oC.
(2) coils should meet the design requirements. Seams should be staggered when laying multiple layers. The SBS modified asphalt waterproof coil cut into the corresponding size, with the original roll heart roll good backup, paving with the roll with the flame spray gun heating the base and the junction of the coil, spray gun from the heating surface about 300mm, after round-trip even heating, to the surface of the roll melt to bright black as a degree, not excessive heating of the coil. The surface of the coil should be hot-melted immediately after rolling the coil, rolling when the application roller crushing to remove the air below the coil, so that it flattens and pastes firmly. When laying rolls, they should be straight and straight, the matching size is accurate, and they must not be distorted. The bonding area is glued to a hot melt with a full adhesion method and is pressed with an iron smear.
(3) high-polymer SBS modified asphalt coil paving direction should comply with the following provisions:
1) roof slope is less than 3%, parallel roof ridge paving.
2) When the roof slope is 3% to 25%, parallel or vertical roof ridges are paved.
3) The upper and lower coils shall not be laid vertically to each other.
6. Hot melt seal edge: the coil joint with a flame spray gun heating, while hot so that the two stick firmly, to the edge extruded width of about 2mm and even straight asphalt asphalt as a degree; The water-resistant coil on the water-resistant ≥ 250mm.
7. Water storage test: after the waterproof layer construction, before the construction of the protective layer, should do roof water storage test. To do water storage test, its water storage time is not less than 24 hours, water storage height of 50mm-100mm, water surface must cover the entire roof, large area roof can be segmented, block water storage test; 2 hours; for the roof water drop, through the roof panel pipe perimeter, protruding roof structure and roof junction and other detailed nodes, must be local water storage test, water storage height of 100mm, water storage time is not less than 24 hours, and do a good job of inspection records, after the construction unit or supervision unit visa can enter the next process construction.
8. Waterproof protective layer construction:
(1) the use of light-colored paint as a protective layer, should wait for the roll sheeting completed, and after inspection and clearance, clean brush. The coating should be firmly bonded with the coil, thick and uniform, and must not leak.
(2) when using cement mortar, block material or fine stone concrete as a protective layer, should comply with the following provisions:
1) when using cement mortar as a protective layer, the surface should be flattened, and should be set up a surface section seam, the sub-sectional area should be 1m.
2) with blocks