沥青油石比及养生时间对半柔性路面材料性能的影响  

Influence of Asphalt Aggregate Ratio and Curing Time on Properties of Semi-flexible Pavement Materials

作　　者：张云珂 ZHANG Yun-ke(Taiyuan Branch of Shanxi Province Expressway Group Co.,Ltd.,Taiyuan,Shanxi 030006,China)

机构地区：[1]山西省高速公路集团太原有限责任公司,山西太原030006

出　　处：《山西交通科技》2022年第1期6-8,29,共4页Shanxi Science & Technology of Transportation

摘　　要：研究制备了开级配沥青混合料试件,然后使用合理水灰比/灰砂比的水泥浆,浇注成半柔性路面试件。试件养生1 d和28 d后分别测定其力学性能和路用性能。结果表明,在油石比为4.5%的条件下,试件的抗压强度和间接拉伸强度最高。养生对半柔性路面材料性能的影响非常明显,经过28 d的养生,试件的抗压强度、间接拉伸强度、高温性能均有较大幅度的提高。In this paper,the open graded asphalt mixture was prepared,and then using cement slurry with rational water-cement ratio/cement-sand ratio to cast semi-flexible pavement specimens.After curing for 1 day and 28 days,the mechanical properties and road performance of the specimens were determined.The results show that,when the asphalt aggregate ratio is 4.5%,the compressive strength and indirect tensile strength of the specimens are the highest.The curing has a significant impact on the properties of semi-flexible pavement materials,and after 28 days of the curing,the compressive strength,indirect tensile strength and high temperature stability of the specimens are greatly improved.

关 键 词：半柔性路面 油石比 养生时间 间接抗拉强度 高温稳定性 

分 类 号：U416.221[交通运输工程—道路与铁道工程]