(I) Construction preparation All pipelines have been installed and checked
(II) Construction Process
1. Clean up grassroots: The surface of the grassroots surface will be flattened with scores, and the depressions will be filled with mortar.
2, smear waterproof mortar: should pay attention to the construction of special parts, requires the mortar and grassroots combination of solid and dense without hollowing, prone to leakage of weak parts to close the head, combined with a smooth and smooth. The drainage slope should also be taken into account during the construction process.
3, according to waterproof specifications, must be polyurethane film waterproof:
(1) Brush primer: Prepare the primer according to the material specification, first increase the smearing and paving reinforcement material on the façade, the yin and yang angle, the drainage pipe, the surrounding of the riser pipe, the concrete interface, the crack and other joint parts, and then Then a large area of ​​plane brushing;
(2) Brush waterproof coating: According to the material description waterproof coating; After the primer is basically dry and solidified, use a plastic or squeegee to evenly brush the first layer of paint, when smearing force should be uniform; in the first layer 24 hours after curing of the coating film, the hollow film, pores, sand, and dust that had been drawn into the coating, and poor curing were repaired and then the coating was applied after the second pass. The direction of the coating must be consistent with that of the first layer. The brushing agenda is vertical; after the second pass of the coating is cured, the water-blocking test should be completed. After passing the test, the 20mm-thick cement mortar protective layer should be wiped.
(3) Treatment of special parts: Highlight the roots of the pipe, the floor of the pipe, the floor drain, the yin and yang angles of the drainage opening, the deformation joints, etc. The first step is to apply an additional layer of waterproof cloth before the large area is painted. After the surface is dry, the fiber cloth is cut into pieces of the same size as the management, floor drain, etc., and the circumference is widened by 200 mm. The fiber jacket is laid on the details such as the root of the pipe. At the same time brush coating waterproof coating. After 24 hours of drying, a large area of ​​waterproof coating can be applied.
(4) After the completion of the construction, the closed water test should be conducted.
(III) Quality Control and Inspection Measures
1. The type, brand number and mix ratio of the waterproof material used must meet the design requirements and the construction specification. Each batch of product should have the product certificate and attached instructions and other documents.
2, brushing the total thickness of the design requirements, generally should be controlled at about 1.5mm (that is, the amount of scraping is about 2.5kg/m2.)
3, the grass-roots level must be tight, firm, clean, free of floating soil, in line with the provisions of the construction specification.
4. The slope of the screed must meet the design requirements.
(IV) Quality standards
1. The type, brand number and mix ratio of the waterproof material used for coating film must meet the requirements of the design requirements and construction specifications.
2. The details such as the waterproof layer of the coating film and its deformation joints and embedded fittings must comply with the design requirements and the provisions of the construction specification.
3. The base layer of the coating waterproof layer should be firm, the surface should be clean and smooth, and the yin and yang corners should be rounded or obtuse. The polyurethane primer brush should be even and without any leakage.
4, polyurethane primer, additional layers, brushing method, take the line and the head should meet the requirements of the construction regulations, and should be firmly bonded, tight, joint sealing, no damage, empty drums and other defects.
(II) Construction Process
1. Clean up grassroots: The surface of the grassroots surface will be flattened with scores, and the depressions will be filled with mortar.
2, smear waterproof mortar: should pay attention to the construction of special parts, requires the mortar and grassroots combination of solid and dense without hollowing, prone to leakage of weak parts to close the head, combined with a smooth and smooth. The drainage slope should also be taken into account during the construction process.
3, according to waterproof specifications, must be polyurethane film waterproof:
(1) Brush primer: Prepare the primer according to the material specification, first increase the smearing and paving reinforcement material on the façade, the yin and yang angle, the drainage pipe, the surrounding of the riser pipe, the concrete interface, the crack and other joint parts, and then Then a large area of ​​plane brushing;
(2) Brush waterproof coating: According to the material description waterproof coating; After the primer is basically dry and solidified, use a plastic or squeegee to evenly brush the first layer of paint, when smearing force should be uniform; in the first layer 24 hours after curing of the coating film, the hollow film, pores, sand, and dust that had been drawn into the coating, and poor curing were repaired and then the coating was applied after the second pass. The direction of the coating must be consistent with that of the first layer. The brushing agenda is vertical; after the second pass of the coating is cured, the water-blocking test should be completed. After passing the test, the 20mm-thick cement mortar protective layer should be wiped.
(3) Treatment of special parts: Highlight the roots of the pipe, the floor of the pipe, the floor drain, the yin and yang angles of the drainage opening, the deformation joints, etc. The first step is to apply an additional layer of waterproof cloth before the large area is painted. After the surface is dry, the fiber cloth is cut into pieces of the same size as the management, floor drain, etc., and the circumference is widened by 200 mm. The fiber jacket is laid on the details such as the root of the pipe. At the same time brush coating waterproof coating. After 24 hours of drying, a large area of ​​waterproof coating can be applied.
(4) After the completion of the construction, the closed water test should be conducted.
(III) Quality Control and Inspection Measures
1. The type, brand number and mix ratio of the waterproof material used must meet the design requirements and the construction specification. Each batch of product should have the product certificate and attached instructions and other documents.
2, brushing the total thickness of the design requirements, generally should be controlled at about 1.5mm (that is, the amount of scraping is about 2.5kg/m2.)
3, the grass-roots level must be tight, firm, clean, free of floating soil, in line with the provisions of the construction specification.
4. The slope of the screed must meet the design requirements.
(IV) Quality standards
1. The type, brand number and mix ratio of the waterproof material used for coating film must meet the requirements of the design requirements and construction specifications.
2. The details such as the waterproof layer of the coating film and its deformation joints and embedded fittings must comply with the design requirements and the provisions of the construction specification.
3. The base layer of the coating waterproof layer should be firm, the surface should be clean and smooth, and the yin and yang corners should be rounded or obtuse. The polyurethane primer brush should be even and without any leakage.
4, polyurethane primer, additional layers, brushing method, take the line and the head should meet the requirements of the construction regulations, and should be firmly bonded, tight, joint sealing, no damage, empty drums and other defects.