橡胶和纤维在微表处混合料中的适用性试验研究

通过湿轮磨耗试验和负载轮粘砂试验,研究了添加纤维与橡胶粉稳定剂在微表处混合料中的适用性.结果表明:微表处混合料可以通过添加纤维、橡胶粉或者两者的复合稳定剂来增大混合料的用油量;添加了纤维的微表处混合料,其耐磨耗性能有很大提高;橡胶粉用量不宜过多,应控制在5%左右以防止碾压变形;4%橡胶粉+0.02%纤维的复合稳定剂对微表处混合料改善效果较好并可以降低噪声4～5 dB(A).

Research on suitability of rubber and fiber added to micro-surfacing mixtures

The suitability of rubber and fiber added to r micro-surfacing mixtures was examined in this paper on the basis of wet-wheel abrasion and load adhering sand tests.The results have shown that the asphalt content can be increased through adding rubber and.fiber,or stabilized agent from both composition;the abrasive resistance at micro-surfacing can be improved greatly by adding fiber to mixture;the content of rubber should not be larger than 5% to prevent deformation in the process of compacting.The composite...