Preparation method of composite low-carbon environment-friendly pavement material

Abstract

The invention discloses a preparation method of a composite low-carbon environment-friendly pavement material, which comprises the following steps: blending rubber powder, a low-density polyethylene reclaimed material and a solvent dispersant to prepare composite modified particles, adding the composite modified particles into flowing matrix asphalt, and performing high-speed shearing to obtain composite modified asphalt; uniformly mixing a cationic emulsifier and water, adjusting the pH value to 1-3, circularly shearing in a colloid mill to obtain an emulsifier soap liquid, adding the emulsifier soap liquid and a stabilizer into the composite modified asphalt, and shearing and mixing to obtain emulsified rubber and plastic asphalt; mixing an asphalt mixture recycled material and a reinforced inorganic recycled material, adding cement, water, a reinforcing agent and the emulsified rubber and plastic asphalt, and uniformly mixing to obtain the composite low-carbon environment-friendly pavement material. According to the invention, the inorganic recycled material is strengthened, the pavement material prepared by taking the inorganic recycled material as the main raw material has excellent performance, and effective recycling of the high RAI / RAP aggregate is realized; all the used modified materials and aggregates are recycled materials, so that the method has remarkable economic and environmental benefits.

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