| 施工期受冻混凝土与钢筋粘结性能试验研究 |
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| 引用本文： | 王珏,任慧韬,刘丽霞.施工期受冻混凝土与钢筋粘结性能试验研究[J].工业建筑,2010,40(12). |
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| 作者姓名： | 王珏 任慧韬 刘丽霞 |
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| 摘 要： | 通过钢筋与混凝土的中心拉拔试验,研究施工期受冻对混凝土与钢筋粘结性能的影响。试验参数考虑施工期温度、防冻剂掺量和养护条件三种。试验获得钢筋与混凝土的荷载-滑移曲线,计算了极限粘结强度和粘结滑移,并与常温标准养护下的试件进行对比分析。试验结果表明:在低温状态下,防冻剂掺量不足或养护措施不当会造成钢筋与混凝土之间粘结性能不同程度的下降。
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| 关 键 词： | 施工期受冻 钢筋混凝土 粘结性能 防冻剂 养护条件 |
AN EXPERIMENTAL STUDY ON THE BOND BEHAVIOR BETWEEN STEEL BAR AND FROZEN CONCRETE DURING WINTER CONSTRUCTION |
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| Wang Jue,Ren Huitao,Liu Lixia.AN EXPERIMENTAL STUDY ON THE BOND BEHAVIOR BETWEEN STEEL BAR AND FROZEN CONCRETE DURING WINTER CONSTRUCTION[J].Industrial Construction,2010,40(12). |
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| Authors: | Wang Jue Ren Huitao Liu Lixia |
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| Abstract: | In this study,pull-out tests are carried out to research the bond behavior between steel bar and frozen concrete during winter construction.Test parameters are construction temperature,amount of anti-freezing admixture and curing condition.load-slip curve of steel bar and concrete is obtained,and factors such as ultimate bond strength and bond slip are analyzed and compared with specimens in standard curing condition.The test results show that bond properties between steel bar and concrete are degenerated due to inadequate amount of anti-freezing admixture and poor curing condition in low temperature. |
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| Keywords: | frozen damage during winter construction reinforced concrete bond property anti-freezing agent curing condition |
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