| abstract |
The invention relates to stable modified asphalt. The stable modified asphalt is prepared by, by weight, 4-8 parts of stearic acid, 3-4 parts of castor oil, 6-9 parts of oleic acid, 3-5 parts of hexadecanoic acid, 0.8-2.4 parts of sodium lactate, 0.6-1.2 parts of phenethyl phenol polypropylene oxide polyoxyethylene ether, 2-4 parts of nano silicon oxide, 3-6 parts of SBS segmented copolymer, 10-15 parts of rubber powder, 8-13 parts of epoxidized soybean oil, 0.7-1.8 parts of graphite powder, 0.1-0.2 part of chlorinated polyethylene, 0.2-0.5 part of coupling agent, 25-35 parts of asphalt, 1-4 parts of surfactant, 1-2 parts of antioxidant and 4-6 parts of dimethylbenzene. The stable modified asphalt is good in anti-rut capacity under high temperature, high in flexibility and elasticity, stable in performance, excellent in pavement performance and convenient to use. |