粉煤灰级配碎石混合料试验研究  

Experimental Study on Flyash Grading Macadam Mixture

作　　者：陈国明[1] 江厚权 顾洪江[3] 李智慧[1] 

机构地区：[1]哈尔滨工业大学交通科学与工程学院,哈尔滨市150090 [2]河北省建设集团路桥分公司,保定市071051 [3]辽宁省交通科学研究院,沈阳市110015

出　　处：《公路》2005年第2期100-103,共4页Highway

摘　　要：考察了不同级配类型和不同成型工艺的粉煤灰级配碎石混合料性能,分别采用CBR值、永久变形和 弹性模量对级配碎石混合料性能进行了评价。研究表明,掺加粉煤灰后级配碎石混合料性能显著提高,振动压实的 混合料性能优于击实成型的混合料,近似间断级配的混合料性能优于连续级配混合料。In the paper, flyash grading macadam mixture performance of different grading types and compaction methods are studied. CBR, permanent deformation and elasticity modulus are adopted respectively to evaluate its performance. Test results show that the grading macadam mixture performance is remarkably increased after adding flyash, the performance of the mixture compacted by vibratory compaction method is better than that of heavy-duty hitting method and the mixture performance of approximate gap grading is superior to that of continuous grading.

关 键 词：级配碎石 混合料性能 级配类型 CBR值 振动压实 永久变形 击实 粉煤灰 间断级配 连续级配 

分 类 号：U416[交通运输工程—道路与铁道工程] U414