▎ 摘　　要

NOVELTY - Flame-retarding sound-absorbing concrete comprises 35-50 pts. wt. cement, 35-60 pts. wt. pulverized coal ash, 0.06-1 pt. wt. water reducing agent, 8-18 pts. wt. aluminum hydroxide, 1-3 pts. wt. polyethylene glycol, 0.1-2 pts. wt. strontium titanate/graphene composite, 160-200 pts. wt. coarse aggregate, 100-150 pts. wt. fine aggregate, and balance water. USE - Flame-retarding sound-absorbing concrete. ADVANTAGE - The concrete has improved functional performance and synergistic effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the preparation of flame-retarding sound-absorbing concrete comprising taking strontium hydroxide, titanic acid and graphene oxide, hydrothermally synthesizing to strontium titanate/graphene oxide, adding ethylenediamine, reacting at 80 degrees C for 2-24 hours to obtain composite material, adding aluminum hydroxide and water, heating to 40-60 degrees C, adding polyethylene glycol, stirring for 1-2 hours to obtain mixture A, mixing cement, pulverized coal ash, coarse aggregate, fine aggregate and water for 10-30 minutes to obtain mixture B, and mixing mixtures for 1-3 hours.