| 旧水泥混凝土路面碎石化技术效果对比分析 |
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| 引用本文： | 周启兆,刘孝江,李豪,张中云.旧水泥混凝土路面碎石化技术效果对比分析[J].现代交通技术,2011,8(2):5-8. |
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| 作者姓名： | 周启兆 刘孝江 李豪 张中云 |
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| 作者单位： | 1. 盐城市交通局,江苏,盐城,224000
2. 江苏省交通科学研究院股份有限公司,江苏,南京,210017 |
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| 基金项目： | 江苏省交通厅科研项目(项目编号:09Y07) |
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| 摘 要： | 相关的研究表明,对水泥混凝土路面进行碎石化处理是最有效的防治反射裂缝的方法,目前碎石化技术分为多锤头碎石化和共振碎石化。该文对2种碎石化技术的机理、破碎层的表观粒径、室内筛分试验、弯沉试验及承载板试验等方面进行对比分析,通过研究可知RPB破碎层的强度要小于MHB,但强度均匀性要好于MHB,对沥青加铺层的反射裂缝消除作用更优;RPB碎石化工艺在破碎过程中能更好地保护基层,减小基层强度损失;RPB破碎后顶面强度要高于MHB的,即拥有更高的顶面承载力。
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| 关 键 词： | 旧水泥混凝土路面 碎石化 筛分试验 弯沉试验 承载板试验 |
Comparative Research on Old Cement Concrete Pavement Rubblization Technology |
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| Zhou Qizhao,Liu Xiaojiang,Li Hao,Zhang Zhongyun.Comparative Research on Old Cement Concrete Pavement Rubblization Technology[J].Modern Transportation Technology,2011,8(2):5-8. |
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| Authors: | Zhou Qizhao Liu Xiaojiang Li Hao Zhang Zhongyun |
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| Institution: | Zhou Qizhao1,Liu Xiaojiang1,Li Hao2,Zhang Zhongyun2(1.Yancheng Transportation Bureau,Yancheng 224000,China,2.Jiangsu Transportation Research Institute,Nanjing 210017,China) |
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| Abstract: | Some researches showed that old cement concrete pavement rubblization was an effective method that can prevent reflective cracking. At present,rubblization technology includes MHB and RPB. The paper compared their mechanism of rubblization technology,apparent particle diameter of cracked layer,laboratory screening test,deflection test and bearing plate test. Research indicated that cracked layer strength of RPB was less than MHB,but its uniformity was better and reflective cracking of HMA overlay can be pre... |
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| Keywords: | old cement concrete pavement rubblization screening test deflection test bearing plate test |
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