Permeable asphalt and improved construction method thereof

• Main Authors: LI ZHENGGONG, YAN LIDONG, BI SHIYOU, LU LILI, ZHANG MOWEN, WANG YUTING, LI QITAO, WANG ZIHAO
• Format: Patent
• Language: Chinese; English
• Published: 21.12.2021
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE; FIXED CONSTRUCTIONS; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention relates to the technical field of asphalt pavement construction methods, and discloses permeable asphalt and an improved construction method thereof.The permeable asphalt is characterized in that 1, rubber powder and an HVA high-viscosity modifier are used for conducting composite modification on asphalt, and the cohesiveness of the asphalt is improved; and 2) the permeable asphalt is heated to 180 DEG C to enable the permeable asphalt to be in a flowing state, and respectively 6%, 8%, 10% and 12% of micro-particle HVA high-viscosity modifiers are added into the permeable asphalt. According to the permeable asphalt and the improved construction method thereof, the influence of water damage on the service life of an asphalt pavement can be reduced, the service life of the pavement can be greatly prolonged, the viscosity of the asphalt can be greatly improved by doping the micro-particle HVA modifier and a proper amount of rubber powder, and the high and low temperature resistance and the fatigue