With The gradual enrichment on the types of concrete, the types of superplasticizers have also elevated, and naphthalene superplasticizers and polycarboxylic acid superplasticizers are beginning to be broadly used in concrete [27,28]. Even though there are actually several types of superplasticizers, which are all based on OPC, the component morphology https://knoxnpnkh.wikicommunication.com/5675613/the_ultimate_guide_to_air_entraining_agents