High-viscosity warm asphalt modifier and preparation method for modified asphalt

• Main Authors: LYU HAO, ZHANG JIAN, CHEN LIFENG, PAN YOUQIANG, LI FANGFANG, ZHU YAOZHI, CHEN ZHIDONG
• Format: Patent
• Language: Chinese; English
• Published: 10.05.2017
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention discloses a high-viscosity warm asphalt modifier and a preparation method for modified asphalt. The high-viscosity warm asphalt modifier is formed by the following components by weight: 20-60 parts of thermoplastic butadiene styrene rubber, 10-30 parts of rubber powder, 20-50 parts of an elastomer material, 1-20 parts of a warm mixing agent, 1-10 parts of a performance additive, and 0-5 parts of a stabilizer. Elastomeric polymer, viscous polymer and a warm mixing additive are mixed in the appropriate proportion to prepare the high-viscosity warm asphalt modifier, the high-viscosity modified asphalt prepared by using the high-viscosity warm asphalt modifier has better adhesion property with building stones, and the water stability and the ageing resistance of the asphalt mixture are improved. The method has the advantages of convenience, simpliness and easiness. In the road surface production and construction process, the air pollution can be reduced, the fuel is saved, the material oxidation agi