Concrete admixtures is a material refers to the mixing concrete mixing before or during the process of mixing with to improve the performance of concrete .Concrete admixture content is generally not more than 5% of the mass of cement.The quality of concrete admixture products must conform to the national standard "concrete admixture" Concrete Admixtures,Concrete Additives,Plasticizer In Concrete,Superplasticizer In Concrete NINGBO LUCKY CHEMICAL INDUSTRY CO. LTD , https://www.luckychemical.com
Cement Drilling Pile Quality Drilling Core Method: Influence of Deep Well Drill