Expansion joints are widely used in the floors, roofs, and pavements of large public buildings. Depending on the design, they can be classified as expansion joints, settlement joints, seismic joints, and more. For single‑layer expansion joint systems, high‑performance sealing materials such as platinum‑cured silicone, EPDM, chloroprene rubber, and TPV may be selected.
With a double-layer structure, extra-large sealing strips, and a complex porous architecture, TPV material is recommended to better accommodate building‑body displacement, delivering long‑term sealing and structural protection while ensuring the overall safety and durability of the structure.
The performance and service life of expansion joints are directly related to the overall structural design of the building, the installation of the sealant strips, and the material of those strips.
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