沥青混凝土抗剥落性行为的改性实验

抗剥落性是沥青混凝土工程特征的一个重要指标。文章研究了酸碱性填料对沥青混凝土抗剥落性行为的影响，探讨了工业固态粉末废物EF材料和粉煤灰用作沥青混凝土填料的可能性，结果表明：填料的种类和加入量影响了沥青混合胶结料的粘度，与酸性填料硅质矿粉和粉煤灰比较，碱性填料石灰石和EF材料能显著提高沥青混凝土混合物的粘度、刚度、稳定度、回弹模量和劈裂抗拉强度，并有效改善沥青混凝土的抗剥落性。

Improvement of Alkaline Fillers on Anti-stripping Properties of Asphalt Concrete

Anti stripping is an important objective of asphalt concrete engineering.Effects of acidic and alkaline fillers on anti stripping of asphalt concrete, and the possibilities of solid powder wastes added into asphalt concrete as the filler, have been explored. The result shows that additions of alkaline filler such as limestone and EF material into asphalt concrete as the filler, compared to acidic fillers such as siliceous mineral filler and fly ash, can effectively enhance the Marshell stability, resilient modulus and split tensile strength for this mixture. Meanwhile, the anti-stripping ability of asphalt concrete would be greatly improved.