短切玄武岩纤维在SMA中的应用

Application of Short Cut Basalt Fiber in SMA

根据沥青玛蹄脂碎石混合料（SMA）中集料、沥青、纤维、空隙率与矿料间隙率（VMA）之间的体积关系推导了VMA与沥青油石比之间的关系,并通过室内试验对其进行了验证;通过比较掺量为0.3%木质素纤维沥青玛蹄脂碎石和掺量为0.4%短切玄武岩纤维沥青玛蹄脂碎石混合料室内试验结果,验证了短切玄武岩纤维应用于沥青玛蹄脂碎石混合料的可行性。

Based on the volume relationship between SMA （including aggregating material, asphalt, fiber, void ratio） and VMA, the relation formula between VMA and asphalt oil-stone ratio is deducted, and verified by laboratory experiment. Through the analysis of SMA with 0.3% wooden fiber and 0.4% short-cut basalt fiber, the possibility of short cut basalt fiber used in SMA is verified.