纤维沥青混凝土在防止道路交叉路口路面变形中的应用

A Study on the Application of Fiber Asphalt Concrete to Prevent the Deformation of the Road Crossing

目的研究利用德兰尼特纤维加筋沥青混凝土材料,防止道路交叉路口路面变形.方法通过沥青混合料室内试验研究和工程实践,提出一套可行的交叉路口变形预防方法.结果德兰尼特纤维的最佳掺量为0.3%;确定交叉路口防变形处理位置为城市主干路快车道的停车线后50 m.结论沥青混凝土中掺入一定含量的德兰尼特纤维,可以提高沥青混凝土的路用性能,尤其是抗高温变形能力,延长道路路面的使用寿命,有效防止道路交叉路口的变形破坏.

The study was made to investigate how to prevent deformation of the road crossing by using fiber asphalt concrete. Through the asphalt mixture laboratory test research and engineering practice, the paper proposed a feasible way to prevent deformation of the intersection. The results show that the best dolanit fiber content is 0.3 % ; the processing position at the crossroads to prevent the deformation is after the stop line 50m of the urban fast lane trunk road. If asphalt concrete was mixed with a certain amount of dolanit fiber, the asphalt concrete pavement performance can be improved; the service life of road can be extended and the deformation and damage of road crossing can be effectively prevented.