▎ 摘　　要

NOVELTY - Asphalt pavement flame-retarding smoke suppressant comprises 50-70 wt.% raw vermiculite powder, 15-35 wt.% brucite powder, 15-25 wt.% graphene and 0.003-0.005 wt.% boehmite powder. USE - Asphalt pavement flame-retarding smoke suppressant. ADVANTAGE - The asphalt pavement flame-retarding smoke suppressant ensures good anti-flaming effect, improved construction safety, no adverse effect and environmental protection. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing asphalt pavement flame-retarding smoke suppressant, which involves: (A) grinding brucite and boehmite to obtain nano-particle; (B) dissolving sodium polyacrylate in water to obtain solution that is mixed with micro-vermiculite powder and nano-particle; (C) grinding obtained mixture for 25-30 minutes in ball-mill to obtain slurry; (D) mixing graphene and abrasive slurry ultrasonically; (E) filtering obtained mixture using suspension hydraulic filter to obtain filter cake; (F) mixing filter cake and ground material; and (G) freeze-drying and sieving obtained mixture to obtain product.