▎ 摘　　要

NOVELTY - Preparing flame retardant warm mix capsule self-healing asphalt concrete comprises (i) mixing 3-5 pts. wt. layered double metal hydroxide and 1-2 pts. organic viscosity reducer uniformly to obtain flame retardant warm mixing agent; (ii) mixing and stirring 37 wt.% formaldehyde solution and urea until urea is completely dissolved, adjusting pH value to 8-9, adding graphene, heating slowly to 60-70 degrees C, stirring to react for 1-2 hours and diluting with water to obtain prepolymer solution; (iii) dissolving emulsifier in water, adding n-octanol and asphalt regenerating agent and stirring for 1-2 hours to obtain core emulsion; (iv) dropping prepolymer solution into core emulsion, adding ammonium chloride and resorcinol, reacting at 60-70 degrees C, adjusting pH to 2-3, forming capsule, curing continuously for 2-3 hours, finishing to react, filtering, washing, drying to obtain self-healing capsule. USE - The method is useful for preparing flame retardant warm mix capsule self-healing asphalt concrete. ADVANTAGE - The method: enables preparation of self-healing asphalt concrete with excellent synergistic effect, flame retardant performance, warm mixing performance and self-healing effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for flame retardant warm mix capsule self-healing asphalt concrete, prepared as mentioned above.