With the gradual enrichment of the types of concrete, the types of superplasticizers have also elevated, and naphthalene superplasticizers and polycarboxylic acid superplasticizers are starting to be widely used in concrete [27,28]. Even though there are already quite a few types of superplasticizers, which might be all based on OPC, https://miloccbol.uzblog.net/how-foaming-agent-for-concrete-can-save-you-time-stress-and-money-51264228