公开(公告)号：US20240270968A1

公开(公告)日：2024-08-15

申请号：US18431649

申请日：2024-02-02

Applicant: Sichuan Road and Bridge Construction Group Co., Ltd.

Inventor： Shuangquan JIANG ,  Jian YANG ,  Peilong LI ,  Wei LU ,  Liuda CHENG ,  Yi PEI ,  Zhan DING ,  Jianglin DU ,  Haiqing LI ,  Jixiang PU ,  Qingyun LI ,  Maoqin Niu

IPC: C08L95/00 ,  C08F236/08 ,  C08K3/06 ,  C08K5/12 ,  C08K5/3465 ,  C08L9/06 ,  C08L91/00 ,  C08L93/04

CPC classification number: C08L95/00 ,  C08F236/08 ,  C08K3/06 ,  C08K5/12 ,  C08K5/3465 ,  C08L9/06 ,  C08L91/00 ,  C08L93/04 ,  C08L2555/22 ,  C08L2555/54 ,  C08L2555/60 ,  C08L2555/80

Abstract: The disclosure discloses a high-viscosity, high-elasticity, and anti-aging composite modified asphalt and a preparation method thereof, solves the technical problem that the comprehensive performance of an existing asphalt ultrathin wearing layer needs to be further improved so as to prolong the service life of a pavement surface layer and reduce the pavement maintenance costs. The composite modified asphalt is prepared from the following components in parts by mass: 100 parts of a matrix asphalt, 10 to 15 parts of a thermoplastic styrene-butadiene rubber, 5 to 8 parts of a tackifier, 0.5 to 1.5 parts of a plasticizer, 2 to 5 parts of a compatilizer, 0.1 to 0.4 parts of a stabilizer, and 0.01 to 0.05 parts of an anti-aging agent. The composite modified asphalt prepared by the disclosure has the advantages of high elasticity, high viscosity, excellent aging resistance, etc.