Polycarboxylate superplasticizer 1, dosage of 0.4% to 2.0% of the total weight of cementitious material, commonly used dosage is from 0.4% to 1.2%; concrete test should be carried out with test Rizhao City-acid reduction before use agent performance, in order to best content; 2, not with naphthalene superplasticizer complex to use, use with other additives compounded when should advance concrete compatibility test; 3, slump to water higher levels of sensitivity, we must strictly control the use of water; 4, pay attention to the concrete surface maintenance. Dispersion of cement each group a different role to play in Rizhao City Polycarboxylate performance, is generally believed that negatively charged sulfonic acid groups and carboxylic acid groups can be adsorbed onto the surface of cement particles, play the anchor role in Rizhao City polycarboxymethyl acid water reducing performance, also play a role in electrostatic repulsion. Long side extending in the solution plays a strong steric hindrance. Steric hindrance dispersion of cement particles Rizhao Polycarboxylate strong performance, and the impact of the electrolyte as sensitive to electrostatic interaction unlike so polycarboxylate superplasticizer has a good dispersion on adaptability of cement is better. Polycarboxylate ingredient _ _ Rizhao Polycarboxylate high-strength high-strength building materials provided by the Building Materials Co., Linyi. Linyi high-strength building materials Limited (www.lygqjc.cn) strong, credible, concrete and Shandong Linyi products and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead high-strength construction materials into the brilliant and you work for a better future!