Recycled asphalt warm-mixing agent, warm-mixed recycled asphalt mixture and preparation method of warm-mixed recycled asphalt mixture

• Main Authors: FANG SIFA, ZHONG YADAN, GUO PENG, HUANG SHAOLONG, SHEN FAN, XIANG TIANXIANG
• Format: Patent
• Language: Chinese; English
• Published: 16.04.2024
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

The invention relates to a recycled asphalt warm mixing agent and a warm mixing recycled asphalt mixture and a preparation method thereof, the recycled asphalt warm mixing agent comprises a warm mixing agent and a reactant; the warm mixing agent comprises the following raw materials: a solvent, a viscosity reducer and a surfactant in a mass ratio of 100: (13-20): (3.5-5), and the solvent is a mixture of linoleic acid and eleostearic acid; the reactant is powder obtained by calcining calcium carbonate. The warm mixing recycled asphalt mixture comprises a mixture A, a warm mixing agent accounting for 0.65-1% of the mass of the mixture A, a reactant accounting for 1-2% of the mass of the mixture A and asphalt accounting for 1.5-4.0% of the mass of the mixture A, the mixture A comprises aggregate, RAP and mineral powder in a mass ratio of 100: (40-150): (1-10). The construction temperature can be reduced by 50 DEG C or above. 本发明涉及一种再生沥青温拌剂及其温拌再生沥青混合料和制备方法，再生沥青温拌剂，包括温拌剂和反应剂两种组分；温拌剂的原料包括质量比为100:(13～20):(3.5～5)的溶剂、