ABSTRACT
To investigate the anti-cracking performance of asphalt mixture with basalt fibers after the construction process, short-term aging procedure was conducted on basalt fiber reinforced stone matrix asphalt (BF-SMA) in a loose state and the anti-cracking indexes of unaged and short-term aged BF-SMA were tested through semi-circular bending test (SCB). Comparison was made between BF-SMA and lignin fiber reinforced stone matrix asphalt (LF-SMA). Results show that the fracture energy and flexibility index of BF-SMA are always higher than that of LF-SMA while the degradation extents of BF-SMA are much lower than that of LF-SMA, which implies that BF-SMA owns better and more stable anti-cracking performance. The same trend was also found in the rutting test and water stability test. The reduction coefficients are recommended to reevaluate the performance stability of asphalt mixtures before and after construction process and make the constructed road safer and more sustainable.
