Building waterproof sealing technology refers to the technical measures and construction method of tightly sealing all kinds of joints, components and accessories of buildings by selecting correct and reasonable building china WATERPROOF JOINTING SEALANT materials.

The building WATERPROOF JOINTING SEALANT material refers to the material embedded in the gaps of the building, such as the structural construction joints, the periphery of building doors and windows and various gaps caused by the common quality problems of rigid material cracking, which can adjust its own deformation and adapt to it with the displacement changes caused by deformation, and finally achieve the purpose of air tightness and water tightness. It is also called caulking material.

The joints of buildings and structures are arranged by the design according to the needs, which mainly includes the following three categories:
Connection joint: the joint set at the junction of building components and components to adapt to the restrictions of building materials and construction dimensions.
Construction joint: temporarily formed joint during construction, such as post pouring joint, etc.
Deformation joints: joints set to adapt to various deformations of buildings, such as expansion joints, settlement joints, shockproof joints, etc.

The function of china WATERPROOF JOINTING SEALANT material is to close the channel formed by liquid, gas and solid through the joint, so as to make the building airtight, watertight, heat preservation and waterproof. The sealing of china WATERPROOF JOINTING SEALANT material must also ensure that it can withstand the corresponding joint displacement, and can fully restore the original performance and state after the corresponding displacement deformation. Any result that restricts the joint displacement or cannot withstand the displacement will make the seal invalid.

The joint sealing form mainly depends on the type of china WATERPROOF JOINTING SEALANT material used, which mainly has two forms:

One is to embed the amorphous china WATERPROOF JOINTING SEALANT material in the joint, bond with the structural surface and form a plastic or elastic seal.

China WATERPROOF JOINTING SEALANT materials mainly include modified asphalt sealing materials and synthetic polymer sealing waterproof materials. Due to the different properties of the two materials, the construction method shall be determined according to the specific conditions of the materials. At present, the commonly used methods include hot grouting method and cold reverse joint filling, as well as waterproof, moisture-proof and seepage prevention of underground engineering joints.

The other is to insert the shaped WATERPROOF JOINTING SEALANT material liner into the joint with strong force, and close the leakage channel by relying on its own elastic recovery and compression force. This kind of WATERPROOF JOINTING SEALANT material includes sealing strip, sealing gasket (sheet or ring), waterstop, etc. The waterstop can be used in two ways: pre buried and post buried. It is used for the waterproof of deformation joints in underground works of industrial and civil buildings.