橡胶沥青对混合料高温稳定性的影响

通过室内标准车辙试验和全厚式车辙试验，采用单因素对比分析的方法，研究了橡胶沥青对沥青路面高温稳定性的影响。试验结果表明，橡胶沥青与基质沥青比较，对路面的高温抗车辙性能有更大的改善，而且不同橡胶粉掺量也会影响到橡胶沥青的性能。通过全厚式车辙试验，将路面结构与温度梯度等因素考虑进来，使得车辙试验更符合实际路面情况，其试验结果表明各结构层对路面的影响区别较大，双层同时掺入橡胶沥青也比只改善路面高温稳定性更为有效。

Influence of Rubber Asphalt on High Temperature Stability of Mixture

Through the indoor standard rutting test and full depth rutting test, the article researches that the rubber asphalt has the influence on high temperature stability of asphalt pavement by the method of univariate comparative analysis. The result shows that the rubber asphalt has greater improvement on pavement rutting resistance in high temperature compared with general asphalt and different proportion of rubber powder also effects the performance of rubber asphalt. Through the full depth rutting test, consid- ered of the factors including pavement structure and temperature gradient, the rutting test becomes more conformed with the actual road conditions. The test results show that each structural layer has different in- fluence on asphalt pavement, and the double asphalt layers mixed rubber asphalt is more effective to im- prove the high temperature stability of highway compared with the single layer mixed rubber asphalt.