... acid, copolymer, superplasticizers, water reducer, dispersant, concrete admixture, PCPolycarboxylate Superplasticizer (Polycarboxylate High-range Water Reducer) ----Third generation of concrete admixtures ... Superplasticizer3. Melamine sulfonate (Powder)4. Naphthalene sulfonate... (Powder)5. Sodium Gluconate (Powder)6. Sodium Lignosulfonate (Powder)7. Gypsum Retarder Polycarboxylate Superplasticizer