Study on pavement performance of hma mix ' s aggregate gradations near restricted zone 沥青混合料禁区路用性能研究
Firstly , aggregate particles of various sizes were generated for a given aggregate gradation curve and aggregate area fraction 首先,按照骨料级配曲线和面积百分比,生成各种尺寸的骨料颗粒。
Extraction tests were conducted on asphalt concrete specimens sampled from field roads . asphalt concrete and aggregate gradation were compared to design and acceptance specifications 对实际路面取样进行了抽提试验并与规范进行了比较分析。
The paper has put forward and testified four utilizable aggregate gradation . because the method of preparing samples has certain effect on material property parameter of mixture , the paper recommend static preparing method be adopted 试件成型方法对大孔隙水泥稳定碎石混合料的材料性能参数有一定的影响,本文推荐室内试件成型方法为静压成型。
Research results indicate that aggregate gradation extracted from field samples are out of gradation bounds specified in the design file , which can be one of the contributing factors in the development of pavement distress , especially premature failure 研究结果表面沥青混合料的级配超出设计范围可能是影响路面长期性能并呈现早期破坏的原因之一。