Glass Fiber Grid Is Used To Prevent The Asphalt Pavement Reflective Cracking

The reflection crack is one of the most grievous disease in asphalt pavement on a semi-rigid type base course, according to this problem, many measures have been taken to, such as using modified asphalt, to adjust the series of material, but the effect is not sogood. According to the domestic and foreign researches, the new pattern material——GLASGRID is one effective method to solve the reflection crack problem.In the paper, from the bend experimentation, the snap experimentation, the fatigue experimentation and the compress experimentation , We demonstrated the effect of GLASGRID to the reflection cracks and the prime location of the GLASGRID. In addition, through the test road, the GLASGRID's using effect has been studied. The results of the experimentation indicate to use the GLASGRID to the temperature stress is effective, the location of the GLASGRID is better on the tip of the base course.From the results of the experimentations, to use the GLASGRID which has the next characters: the high tensile strength, the low elongation, the high modulus of elasticity and so on, to absorb the crack of asphalt pavement on a semi-rigid type base course is very effective.