【摘要】 将蒙脱土掺配在沥青混凝土中,可以改善沥青混合料的物理力学性能,提高路面工程质量。为了确保蒙脱土改性沥青混合料的低温抗裂性能,就必须用试验方法来评定它在低温下的性能。通过两种武汉市售蒙脱土和实验室纯化蒙脱土,采用压缩应变能、弯曲应变能的方法,进行蒙脱土改性沥青低温性能研究。通过室内试验,证明蒙脱土改性沥青混合料能够有效改善低温抗裂性能。更多还原

【Abstract】 Mixing montmorillonite with asphalt concrete can improve mechanical property of asphalt mixture and enhance quality of pavement engineering.In order to assure low temperature anti-crack performance of montmorillonite modified asphalt mixture,a test method must be adopted to evaluate its low temperature performance.The methods of compressing strain energy and bending strain energy are adopted to study low temperature performance of montmorillonite modified asphalt with two different montmorillonites by indoor tests.The results show distinctly the effectiveness of montmorillonite modified asphalt mixture in the improvement of low temperature anti-cracking performance .更多还原