As a quality assurance for waterproofing projects, it is not only necessary to deepen the understanding of various waterproof materials, but also to pay attention to how to choose waterproof materials.
1. Selection of waterproof materials for different project parts
(1) Roofing. For the waterproof design of building roofs, they themselves are exposed to sunlight, rain and snow for a long time. When the temperature changes in winter and summer and the temperature difference between day and night, the roof panels will expand and contract accordingly, so the roof panels should be selected with extension Waterproof materials with high performance and heat resistance, such as mineral grain polyester SBS modified asphalt waterproof membrane or chlorinated polyethylene waterproof membrane, etc.
(2) Bathroom. The bathroom is in a relatively dark and humid environment all year round. It has many yin and yang angles and many pipes passing through the floor. Although its construction area is not large, its construction is difficult. For the selection of bathroom waterproofing materials, waterproof coatings should be mainly used. The coating can effectively form an overall seamless coating film and will not be affected by the uneven shape of the base surface. In addition, sealing paste or expanded rubber strips can be used to treat pipes that pass through the floor.
(3) Basement. The waterproof design of the basement is mainly to effectively solve the penetration of surface water and capillary water into the basement structure. The overall construction of the underground structure of the house is based on multi-channel fortification and comprehensive management. Due to the relatively small temperature changes, Considering the environment that is small and humid for a long time, rigid waterproofing agents such as silica dense agents should be mainly used. On the other hand, glass fiber polyester tire modified asphalt membranes with higher corrosion resistance should also be used. In the process of selecting basement waterproofing materials and waterproofing design, when selecting polymer waterproofing base materials, sufficient attention should be paid to selecting corresponding binders with certain water resistance. For the selection of waterproof coatings, membrane block waterproofing coatings should be mainly used. For example, waterproof coatings such as polyurethane and silicone rubber with a thickness of more than 2. 5mm.
2. Selection of waterproof materials with different functional requirements
(1) Planted roof. Roof planting is mainly for the purpose of greening the roof, so as to plant flowers and grass on the roof of the house building. Therefore, the lower waterproof layer of the planting soil layer should have good waterproofness, puncture resistance and resistance to corrosive. For the selection of waterproof materials, flexible composite materials or modified asphalt membranes can be mainly used. At the same time, waterproof coatings should be applied to the rigid waterproof surface accordingly to provide multiple layers of defense.
(2) Vibrating industrial factory floors. For large prefabricated concrete house building roofs, the selection of waterproof materials should be based on structural design considerations, and materials with good extensibility and strength should be selected, and polymer waterproof materials with a thickness of more than 1. 5mm should be selected. For example, the common 4mm polyester tire modified asphalt membrane and EPDM sheet materials.
Conclusion
In short, waterproofing engineering construction plays a very important role in the normal use of buildings. Waterproofing projects are hidden projects, so we should check them in real time to ensure the construction quality. As people pay more attention to waterproofing projects, waterproofing technology has developed rapidly, but this is still not able to meet the needs of engineering development. With the improvement of people's living standards, higher requirements have been put forward for the construction quality of construction projects. What we should do most urgently is to actively innovate new waterproof materials and promote the development of waterproof projects. </p
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