冷铣刨、加工工艺对RAP级配及颗粒形状影响
发布时间：2019-06-09 20:02
【摘要】：为了评价冷铣刨、加工工艺对RAP级配及颗粒形状的影响,对旧沥青路面干燥条件下三层一次铣刨、分层铣刨、变速铣刨、以及潮湿条件下铣刨取回的RAP料,在直接破碎、筛分与破碎、筛分、强制搅拌两种RAP加工工艺处理后,采用燃烧法对各档RAP料级配离散性、针片状颗粒含量进行了试验分析。结果表明:在一定的破碎、分档工艺条件下,旧路三层沥青面层一次性铣刨RAP级配离散性与分层铣刨的离散性差异不显著;铣刨速度对RAP中集料的针片状颗粒含量的影响不显著。
[Abstract]:In order to evaluate the influence of cold milling and planing and processing technology on RAP gradation and particle shape, the RAP materials obtained from three layers of primary milling, layered milling, variable speed milling and planing under dry conditions of old asphalt pavement are directly broken. After two kinds of RAP processing processes, screening and crushing, screening and forced stirring, the dispersion of RAP materials and the content of needle-like particles were tested and analyzed by combustion method. The results show that there is no significant difference between the dispersion of RAP grade and the dispersion of layered milling planer under the condition of certain crushing and grading process. The effect of milling speed on the content of needle-like particles in RAP was not significant.
【作者单位】： 重庆交通大学交通土建工程材料国家地方联合实验室;重庆交通大学土木建筑学院;
【基金】：重庆交通大学交通土建工程材料国家地方联合工程实验室开放基金(编号:LHSYS-2012-006)
【分类号】：U414
[Abstract]:In order to evaluate the influence of cold milling and planing and processing technology on RAP gradation and particle shape, the RAP materials obtained from three layers of primary milling, layered milling, variable speed milling and planing under dry conditions of old asphalt pavement are directly broken. After two kinds of RAP processing processes, screening and crushing, screening and forced stirring, the dispersion of RAP materials and the content of needle-like particles were tested and analyzed by combustion method. The results show that there is no significant difference between the dispersion of RAP grade and the dispersion of layered milling planer under the condition of certain crushing and grading process. The effect of milling speed on the content of needle-like particles in RAP was not significant.
【作者单位】： 重庆交通大学交通土建工程材料国家地方联合实验室;重庆交通大学土木建筑学院;
【基金】：重庆交通大学交通土建工程材料国家地方联合工程实验室开放基金(编号:LHSYS-2012-006)
【分类号】：U414
【参考文献】
相关期刊论文 前3条
1 李建才;沥青回收与再生[J];东北公路;2001年03期
2 王日彬,王全学,吕连洪;废旧沥青混合料再生利用[J];黑龙江交通科技;2002年02期
3 张金喜,李娟;我国废旧沥青混合料再生利用的现状和课题[J];市政技术;2005年06期
【共引文献】
相关期刊论文 前10条
1 柯国军,胡绍全,郭长青,陈振富,石建军,孙德纶,陈俊杰;羧基丁苯胶水泥混凝土阻尼值的探索性研究[J];四川建筑科学研究;2003年04期
2 朱洪威;;冷再生混合料疲劳性能的室内试验研究[J];四川建筑科学研究;2012年02期
3 张U，
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