With the gradual enrichment with the types of concrete, the types of superplasticizers have also elevated, and naphthalene superplasticizers and polycarboxylic acid superplasticizers are beginning to be commonly used in concrete [27,28]. Although there are actually quite a few types of superplasticizers, which can be all based on OPC, the https://metal-printing04714.pointblog.net/how-pp-fiber-can-save-you-time-stress-and-money-84961867