With the gradual enrichment in the types of concrete, the types of superplasticizers have also enhanced, and naphthalene superplasticizers and polycarboxylic acid superplasticizers are beginning to be broadly used in concrete [27,28]. While there are lots of types of superplasticizers, which are all based on OPC, the ingredient morphology of https://3dresin71481.blogerus.com/59480118/fascination-about-refractory