▎ 摘　　要

NOVELTY - A road paving material comprises 50-100 pts. wt. phosphogypsum, 30-60 pts. wt. soil residue, 10-15 pts. wt. lime, 10-15 pts. wt. activated superfine powder, 2-3 pts. wt. nanocalcium carbonate, 2-3 pts. wt. graphene dispersed liquid, 0.02-0.06 wt.% activator, 2-4 pts. wt. redispersed latex powder, 1-2 pts. wt. early strength agent, 1-2 pts. wt. polycarboxylate and 1-2 pts. wt. water repellent. USE - Road paving material for use in road engineering construction. ADVANTAGE - The road paving material is environment-friendly and energy-saving. DETAILED DESCRIPTION - A road paving material comprises 50-100 pts. wt. phosphogypsum, 30-60 pts. wt. soil residue, 10-15 pts. wt. lime, 10-15 pts. wt. activated superfine powder, 2-3 pts. wt. nanocalcium carbonate, 2-3 pts. wt. graphene dispersed liquid, 0.02-0.06 wt.% activator, 2-4 pts. wt. redispersed latex powder, 1-2 pts. wt. early strength agent, 1-2 pts. wt. polycarboxylate and 1-2 pts. wt. water repellent. The activated superfine powder is volcanic ash, and has specific surface area of 500-1800 m2/kg. The graphene dispersion liquid is obtained by dispersing graphene in deionized water for 0.5-1 hour ultrasnocailly. The weight ratio of the graphene and deionized water is 1:100-250. The graphene has thickness of 20-40 nm and diameter of 10-200 nm. The activator is biological composite curing agent. The road paving material does not contain cement, asphalt and cement concrete. An INDEPENDENT CLAIM is included for a method for preparing a road paving material, which involves weighing the raw materials, crushing phosphorus gypsum into granules, sieving soil residues to particle diameter of less than or equal to 5 and stirring the raw materials uniformly.