▎ 摘　　要

NOVELTY - Concrete additive comprises 2-5 pts. wt. phosphoric acid-based triazine-based hyper-branched macromolecular compound, 8-12 pts. wt. sulfonic acid diethanolamine/1,3-adamantane acid condensation polymer, 1-3 pts. wt. attapulgite, and 1-4 pts. wt. graphene oxide fiber. USE - Concrete additive. ADVANTAGE - The concrete additive has more excellent water-reducing effect, less dosage, better environmental protection and plasticizing effect, diverse functions, improves the strength, fluidity, durability and impermeability of concrete materials is more significant, has no negative impact on the comprehensive performance of concrete, and has high economic, social and ecological value. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a concrete additive, which involves: (A) mixing the components uniformly in proportion to obtain a mixture; (B) mixing the mixture with water 3-5 times the mass of the mixture uniformly; (C) adding sodium hydroxide to it, adjusting the pH to 7, then drying; and (D) adding to the ball mill to ground for 15-25 minutes and then discharge.