Urban comprehensive pipe gallery is a pipeline public tunnel built underground in the city. It is a public channel for urban power, heat, communication, gas, water supply and drainage systems. It carries the functions of normal operation of the city and normal life of residents.

The sealing and waterproof of urban comprehensive pipe gallery adopts the combination of structural waterproof and material waterproof. The sealant is used for the joint sealing of indoor concrete plate of pipe gallery, which is the key defense line of pipe gallery waterproof sealing, directly affects the waterproof sealing of pipe gallery, and has very high requirements for the quality and performance of sealant.

Glue position: concrete plate joint (as shown in the figure)

Key properties: displacement capacity, modulus, weather resistance and adhesion