秸秆纤维路用性能试验研究

Experimental study on road performance of straw fiber

以废弃秸秆为原料提取秸秆纤维,为研究秸秆纤维的路用性能,在不同的纤维掺量下,选用木质素纤维和矿物纤维作为对比,分别开展析漏损失、高温稳定性和水稳定性试验研究。实验结果表明:秸秆纤维和木质素纤维在吸油能力和高温稳定性方面远远高于矿物纤维,在耐水损害能力方面,秸秆纤维和木质素纤维要稍弱于矿物纤维,秸秆纤维和木质素纤维的各项路用性能相差不大,因此秸秆纤维完全可以取代木质素纤维作为沥青路面添加材料,从而为减少沥青路面的早期破坏提供材料支持。

Straw fiber was extracted from wasted straw.To study the road performance of straw fiber,the lignin fiber and mineral fiber are compared in road performance tests such as drainage;high temperature stability and water stability.The test results show that the oil-absorbing ability and high temperature stability of straw fiber of lignin fiber are far higher than those of the mineral fibers.Straw fiber and lignin fiber is weaker than mineral fibers in the aspect of anti-water damage.However,there is little difference between the road performance of straw fiber and lignin fiber,therefore lignin straw fiber can replace the fiber,which can provide material support for reducing premature failure of asphalt pavement.