【摘要】 通过反射裂缝足尺试验来评价纤维增强沥青混合料和玻璃纤维土工格栅对抑制反射裂缝的效果 ,对抑制机理作了分析。试验证明 ,在普通沥青混合料中加入聚酯纤维以及使用改性沥青可使脆化点温度降低 ,增强低温抗裂性 ,加入聚酯纤维和在基层与面层之间铺设玻璃纤维格栅可有效抑制反射裂缝。更多还原

【Abstract】 Based on the result of full-scale test on the reflection crack, this article evaluates the effectiveness of controlling this crack with the fiber reinforced asphalt mixture and glass fiber geogrid. It has been proven that the polyester fiber is added to the normal asphalt mix and the bitumen can lower the temperature of brittle point, and enhance the crack resistance. When the polyster fiber is used or the glass fiber geogrid can be placed between the base course and surface, the reflective cracks can be controlled effectively.更多还原