| 新老混凝土粘结界面耐久性能的试验研究 |
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| 引用本文： | 刘金伟,谢慧才,熊光晶,童元庭. 新老混凝土粘结界面耐久性能的试验研究[J]. 混凝土, 2001, 0(2): 35-38 |
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| 作者姓名： | 刘金伟 谢慧才 熊光晶 童元庭 |
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| 作者单位： | 汕头大学土木系,广东,汕头,515063 |
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| 基金项目： | 国家攀登计划(B)“重大土木与水利工程安全性与耐久性的基础研究”项目，广东省自然科学基金资助 |
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| 摘 要： | 本文介绍了新老混凝土粘结小试件在修补后28天，4个月和1年时的劈拉强度及中型钢筋混弹簧土修补梁在修补后28天，1年，1年半和3年时拉拔强度的测试结果，分析了不同界面剂对新老混凝土界面耐久性能的影响。指出在没有受到荷载作用的情况下，经过一段时间后，界面粘结强度仍将下降。
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| 关 键 词： | 耐久性能 修补 新老混凝土界面 强度 试验 |
| 文章编号： | 1002-3550(2001)02-0035-04 |
| 修稿时间： | 2000-12-05 |
Experimental Research on Bonding Durability of New-To-Old Concrete Interface |
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| LIU Jin-wei,XIE Hui-cai,XIONG Guang-jing,TONG Yuan-ting. Experimental Research on Bonding Durability of New-To-Old Concrete Interface[J]. Concrete, 2001, 0(2): 35-38 |
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| Authors: | LIU Jin-wei XIE Hui-cai XIONG Guang-jing TONG Yuan-ting |
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| Abstract: | In this paper,the split-tensile tests of specimen at twenty-eight days,four months and one year after repaired were made,at the same times,the pull-off tests of repaired reinforced concrete beams at twenty-eight days,one year,one and half years and three years after repaired were made also.The influence of interface agent on bonding durability of new-to-old concrete interface were discussed.The test results show that the bonding strength will reduce after a period of times. |
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| Keywords: | durability repair new-to-old concrete interface strength |
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