摘要
沥青玛蹄脂碎石（ＳＭＡ）混合料良好的路用性能与其填充使用纤维改性的玛蹄脂的性质是相关一致的。本文应用界面作用理论及材料复合理论，分析了纤维改性沥青的作用机理，认为纤维表面分子排列结构及纤维、沥青间的吸附、键合等作用可改善沥青胶体性质，减少其温敏性，并对纤维及其改性的玛蹄脂进行了有关试验，提出了锥入度试验、高温流淌试验等可评价玛蹄脂性质的指标试验。通过沥青玛蹄脂碎石的松散试验、谢伦堡滴漏试验及相关试验分析，证明纤维在混合料中具有稳定沥青、加劲玛蹄脂及增强混合料的作用。
The good performance of SMA is related to the property of mastic,which consists of fiber and asphaltWith interface function and compound material theory, the mechanism of fibered asphalt is analyzed,leading to the conclusion that fiber surface molecule arrage,adsorption and bond link of asphalt improve the property of asphalt,also lessen its temperature sensitivityIt also introduces some experiments,such as cone penetration,high temperature fluidityThen it analyses the results of segeration and schellenberg drainge test,approving fiber can stable asphalt,stiffen mastic and improve concrete
出处
《石油沥青》
1998年第4期1-8,共8页
Petroleum Asphalt
