In the UK, more than 100 schools were closed because of the danger of collapse In the UK, many schools use Autoclaved aerated cement (RAAC). This is a concrete material that is lighter. RAAC was found to be used in the roofs and buildings of a p…
Because the steric hindrance of the extended polymer side chain effectively hinders the secondary agglomeration between cement particles, so the product has high dispersion performance and can maintain this performance for a long time to realize the…
According to incomplete statistics, the prices of nearly one hundred chemical raw materials have increased compared with the same period last year. The top three in terms of gains were bisphenol A (258.77%), acetic acid (219.67%), and butanediol (214…
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