With the gradual enrichment with the types of concrete, the types of superplasticizers have also increased, and naphthalene superplasticizers and polycarboxylic acid superplasticizers are starting to be widely used in concrete [27,28]. Even though there have already been several types of superplasticizers, which might be all based on OPC, the https://spherical-niobium-powder26825.nizarblog.com/37900495/everything-about-sio2