Building Expansion Joint By Nanjing Meishuo Building Materials Co., Ltd

Loaded with vast industrial knowledge and expertise, we have emerged as a major Exporter, Manufacturer & Supplier of Building Expansion Joint in Nanjing, Jiangsu, China.
What is an expansion joint?
In building construction, an expansion joint is a mid-structure separation designed to relieve stress on building materials caused by building movement induced by:
thermal expansion and contraction caused by temperature changes
sway caused by wind
seismic events, etc.
Metallic sheet wrapping :
Because of the non-existence of suitable expansion joint filling compounds before the discovery of poly-sulphides, a complex procedure used to be adopted to treat expansion joints, in concrete dams and such huge structures utilising thick copper sheets. An extension of this practice was to try thin foils of copper and aluminium for wrapping the concrete surfaces with nagging leakage problems.

Seismic series expansion joints are designed for interior and exterior seismic applications where cover concealment is desired in deeper floor finishes.