There are plenty of ideas for cheap earthquake-proofing: one is to fit rubber pads from recycled tyres between concrete blocks as shock-absorbers, says a report in Science magazine.
This paper deals with a new kind of water swelling rubber used for water proofing.
介绍一种新型的遇水膨胀防水橡胶。
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A polysulfide rubber modified epoxy water-proof and corrosion protective coating has been developed, which is used for water-proofing and corrosion protection of metals and concrete.