Building waterproofing is a measure taken from building materials and construction to prevent the penetration of water into certain parts of the building. Waterproofing is used in roofing, underground buildings, underground parts of buildings, and interiors and water storage structures that need to be waterproofed. According to the measures and means adopted by it, it is divided into two categories: material waterproofing and structural waterproofing. Waterproofing of materials is to block the passage of water by building materials to achieve the purpose of waterproofing or to increase the ability to resist leakage, such as waterproofing of membranes, waterproofing of coatings, rigid waterproofing of concrete and cement mortar, and waterproofing of clay and lime soil. Structural waterproofing is a suitable form of construction that blocks the passage of water to achieve waterproofing purposes, such as waterstops and cavity construction. At present, the main application areas include roofing, underground, exterior wall and interior of building construction; municipal engineering such as urban road bridges and underground spaces; bridges and tunnels of expressways and high-speed railways; traffic engineering such as underground railways; diversion canals, reservoirs, dams, Water conservancy power stations and water treatment and other water conservancy projects, and so on. With the advancement of society and the development of building technology, the application of building waterproof materials will extend to more fields.
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