Concrete admixtures (English: concrete admixtures) referred admixtures, concrete means to improve the performance of the incorporation of a substance in the process of mixing concrete. Concrete admixture content is generally not more than 5% of cement quality. Quality concrete admixture products must comply with the national "concrete admixture" (GB 8076-2008) of the required standards. Concrete admixtures http://www.lygqjc.com/