中文核心期刊
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中国科技核心期刊
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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2011, Vol. 30 ›› Issue (5): 957-964.DOI: 10.3969/j.issn.1674-0696.2011.05.016

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同步碎石封层桥面防水黏结层温度敏感性研究

李志栋1，2，黄晓明1，陈广秀3，陈小雪2   

  1. 1. 东南大学交通学院，江苏南京210096; 2. 河南省高远公路养护技术有限公司，河南新乡453000; 3. 辽宁省朝阳市统计局，辽宁朝阳122000
  • 修回日期:2011-06-01 出版日期:2011-10-15 发布日期:2015-01-22
  • 通讯作者: 05/07/2011
  • 作者简介:李志栋(1973—)，男，辽宁朝阳人，工程师，博士研究生，主要从事交通运输工程研究。E-mail:gy.lizhidong@163.com。
  • 基金资助:
    河南省重大科技攻关计划(国际科技合作)项目(084300510016)

On Modified Temperature Model for Synchronous Chip Seal Waterproof Binder Course on the Concrete Bridge

LI Zhi-dong1，2 ，HUANG Xiao-ming1，CHEN Guang-xiu3，CHEN Xiao-xue2   

  1. 1. Transportation College，Southeast University，Nanjing 210096，Jiangsu，China; 2. Henan Gaoyuan Maintenance Technology of Highway Co. ，Ltd. ，Xin xiang 453000，Henan，China; 3. Statistc Bureau of Chaoyang City Liaoning Province，Chaoyang 122000，Liaoning，China
  • Revised:2011-06-01 Online:2011-10-15 Published:2015-01-22

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摘要： 为使水泥混凝土桥面碎石封层防水黏结层在不同温度下的黏结强度和抗剪强度有可比性，首先采用温度模 型对气温、桥面及防水黏结层温度差异性进行对比; 其次，对该防水黏结层强度最大化配比设计及其黏结、抗剪强 度对不同温度条件敏感性进行分析。研究表明: 1． 2 kg /m2 SBS 改性沥青与8 kg /m2 7 ～ 9． 5 mm 碎石时防水黏结层 强度最大; 黏结层、桥面温度分别平均高出气温10 ℃、17 ℃，层间强度对温度极为敏感，同一气温对应的黏结层温 度以及桥面温度下检测的强度下降38% ～ 80%，应采用防水黏结层温度作为检测温度。最后，回归防水黏结层黏 结、直剪、扭转剪切强度的理论模型，提出Ki 强度修正系数，并通过建立P25 强度修正模型将不同温度下强度换算 成25 ℃标准强度值。

关键词: 水泥混凝土桥面, 同步碎石封层, 防水黏结层, 黏结强度, 抗剪强度, 修正模型, 温度敏感性

Abstract: To make bonding and shear resistance strength of synchronous chip seal waterproof binder course under different temperature comparable，the difference of air temperature，deck and waterproof binder course temperature，the design of waterproof binder course and the sensitivity of the strength to the different temperature was studied． It showed that the strength was maximal when asphalt and chip is 1． 2 kg /m2 and 8 kg /m2 ; the strength between courses was sensitive to the temperature and the detected strength under the binder temperature and deck temperature corresponding to the same reduced by 38% to 80%，therefore the strength should be detected under the waterproof binder course temperature． Finally，the correlation coefficient R2 of calculation model of the binder，direct，torsion strength established was above 0． 94; After regressing theoretical model of binding，direct shear，and torsion shear intensity of waterproof bingder course，modified coefficient Ki was proposed; the strength under different temperature could be converted to the standard strength below 25℃ by the establishing of P25modified model of the temperature．

Key words: concrete bridge deck, synchronous chip seal, waterproof binder course, bonding strength, shear resistance strength, modified model, temperature sensitivity

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