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不同温度履历与约束程度下混凝土抗裂性的研究 被引量：3

Experimental study on cracking resistance of concrete under different temperature history and level of constraint
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摘要 以水灰比0.4、坍落扩展度520 mm的混凝土为研究对象,采用温度应力试验机(TSTM)对不同温度履历(绝热温升养护、恒温养护)及不同的约束程度(100%、60%)条件下的混凝土早龄期的抗裂性进行试验研究。结果表明,同一温度履历下约束度越高的混凝土其抗裂性越差;相同约束度下绝热温升条件的混凝土比恒温养护条件的混凝土更易开裂。 This paper focus on early age crack resistance of concrete used the temperature stress testing machine （TSTM） with water cement ratio of 0.4 and slump flow of 520 mm based on the experiment under different curing temperature history （curing of the adiabatic temperature rise,curing of the thermostatic） and different level of constraint （100%,60%）.The results showed that the concrete cracking resistance deteriorate with the rising of the level of constraint through the same curing temperature history： the cracking resistance which curing of the adiabatic temperature rise is worse than that which curing of the thermostatic at the same level of constraint.
作者 尹自立 孙铭 杨堃 叶珊 杨杨
机构地区 浙江工业大学建筑工程学院
出处 《新型建筑材料》 2012年第6期41-44,共4页 New Building Materials
关键词 混凝土 温度 应力 温度履历 约束度 抗裂性 concrete： temperature： stress： temperature history： level of constraint： cracking resistance
分类号 TU375 [建筑科学—结构工程]
  • 相关文献

参考文献8

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二级参考文献13

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共引文献29

同被引文献27

  • 1张国志,屠柳青,夏卫华,刘可心,刘秉京.混凝土早期开裂评价指标研究[J].混凝土,2005(5):13-17. 被引量：25
  • 2张涛,覃维祖.混凝土早期开裂敏感性评价[J].混凝土,2005(10):16-19. 被引量：7
  • 3胡曙光,陈静,周志锋.约束可调式单轴温度-应力试验机控制系统[J].武汉理工大学学报,2007,29(1):55-57. 被引量：9
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  • 7吴望名.综合评判的一个数学模型[J].上海师范学院学报:自然科学版,1982(3):49-58.
  • 8JIANG Chenhui, YANG Yang, WANG Yong, et al. Autogenous shrinkage of high performance concrete containing mineral admixtures under different curing temperatures [J]. Constr Build Mater, 2014, 61: 260-269.
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  • 10杨杨,江晨晖,许四法.高性能混凝土早龄期抗拉性能试验研究[J].建筑材料学报,2008,11(1):94-99. 被引量：18

引证文献3

二级引证文献12

新型建筑材料
2012年 第6期

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