Study on the crack resistance of USP warm-mix rubber asphalt and its mixtures.

ABSTRACT: This study addresses the high mixing temperatures, high viscosity, and low-temperature cracking of rubber-modified asphalt (AR) and evaluates the modification performance of a domestically developed USP warm-mix technology. USPA-R and USPA-C2 are used to prepare warm-mix rubberized asphalt, and corresponding mixtures are designed with AC-13 and SMA-13 gradations. Penetration, softening point, ductility, viscosity, BBR, DDT, fluorescence analysis, and three-point bending tests are conducted in accordance with relevant standards, and ABAQUS simulations are integrated to elucidate mechanisms and quantify performance responses. The results show that both warm-mix additives improve the conventional properties and low-temperature deformation resistance of asphalt concrete (AC), with USPA-C2 exhi

SUBMITTER: Shi W 

PROVIDER: S-EPMC12775492 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature