taoschem2019年1月12日2 分鐘What is concrete admixtures?Chemical concrete admixtures are materials in the form of powder or fluids that are added to the concrete to give it certain characterist...
taoschem2019年1月12日1 分鐘Seven chemical admixture types according to ASTM 494 CategoriesASTM C494 specifies the requirements for seven chemical admixture types. They are below: · Type A: Water-reducing admixtures · Type B: Re...
