| 水泥稳定碎石缩裂机理及在级配设计中应用 |
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| 引用本文： | 李明杰,蒋应军,戴经梁.水泥稳定碎石缩裂机理及在级配设计中应用[J].武汉理工大学学报,2010(3). |
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| 作者姓名： | 李明杰 蒋应军 戴经梁 |
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| 作者单位： | 长安大学特殊地区公路工程教育部重点实验室;河南省公路管理局; |
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| 基金项目： | 交通部行业联合科技攻关项目(2008-353-313-010,2008-353-333-200); 教育部新世纪优秀人才支持计划(NCET-08-0749) |
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| 摘 要： | 为了提高水泥稳定碎石抗裂性能,分析了水泥稳定碎石缩裂机理和组成结构对其影响,提出了水泥稳定碎石级配设计思路和骨架密实型水泥稳定碎石基层材料设计方法。室内外试验研究结果表明:与规范中悬浮密实级配水泥稳定碎石相比,骨架密实型水泥稳定碎石的抗压强度和抗拉强度分别提高了55%和37%,温缩系数和干缩系数分别降低了17.8%和31.5%,试验路平均横向裂缝间距提高了近1倍左右。研究结论:骨架密实型水泥稳定碎石具有良好的路用性能,尤其是抗裂性能,有着良好的应用前景。
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| 关 键 词： | 道路工程 水泥稳定碎石 缩裂机理 骨架密实型级配 |
Analysis and Apply of Anti-cracking Mechanism of Cement Stabilization of Crushed Aggregate |
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| LI Ming-jie,JIANG Ying-jun,DAI Jing-liang.Analysis and Apply of Anti-cracking Mechanism of Cement Stabilization of Crushed Aggregate[J].Journal of Wuhan University of Technology,2010(3). |
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| Authors: | LI Ming-jie JIANG Ying-jun DAI Jing-liang |
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| Affiliation: | LI Ming-jie1,2,JIANG Ying-jun1,DAI Jing-liang1(1.Key Laboratory for Special Area Highway Engineering of Ministry of Education,Chang\'an University,Xi\'an 710064,China,2.Highway Administration Bureau of Henan,Zhengzhou 450052,China) |
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| Abstract: | In order to improving the anti-cracking performance of cement stabilized aggregate,this paper begins with study of the of the anti-cracking mechanism of cement stabilized aggregate,then presents the design method of cement stabilized aggregate of dense skeleton type and the results of a laboratory study aimed at providing further information regarding the road performance of cement stabilized aggregate.The results show that cement stabilized aggregate can significantly improve the pavement performances,such... |
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| Keywords: | road engineering cement stabilization of crushed aggregate anti-cracking mechanism dense skeleton type |
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