| 二维散热条件对混凝土内部温度梯度及热传输的影响 |
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| 引用本文： | 刘玉峻,钱春香,庄园,高桂波. 二维散热条件对混凝土内部温度梯度及热传输的影响[J]. 东南大学学报(自然科学版), 2011, 41(4): 820-823. DOI: 10.3969/j.issn.1001-0505.2011.04.031 |
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| 作者姓名： | 刘玉峻 钱春香 庄园 高桂波 |
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| 作者单位： | 东南大学材料科学与工程学院,南京211189;东南大学江苏省土木工程材料重点实验室,南京211189 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)资助项目(2009CB623203) |
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| 摘 要： | 为了获得二维散热条件下混凝土内部的温度分布情况,采用埋入温度传感器的方法,从水化温度峰值开始测量了混凝土试件内部不同位置的温度变化.结果表明,二维散热条件下,混凝土内部温度受到2个方向上的散热影响.越接近试件表面的位置,其温度随时间的增加下降得越快,产生的温度梯度越大,因此造成温度应力更大；在快速降温阶段,即从终凝到6...
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| 关 键 词： | 混凝土 温度梯度 温度应力 二维散热 |
Influence of two-dimensional cooling condition on inner temperature gradient and heat transferring in concrete |
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| Liu Yujun,Qian Chunxiang,Zhuang Yuan,Gao Guibo. Influence of two-dimensional cooling condition on inner temperature gradient and heat transferring in concrete[J]. Journal of Southeast University(Natural Science Edition), 2011, 41(4): 820-823. DOI: 10.3969/j.issn.1001-0505.2011.04.031 |
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| Authors: | Liu Yujun Qian Chunxiang Zhuang Yuan Gao Guibo |
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| Affiliation: | Liu Yujun Qian Chunxiang Zhuang Yuan Gao Guibo(School of Materials Science and Engineering,Southeast University,Nanjing 211189,China)(Jiangsu Key Laboratory of Construction Materials,China) |
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| Abstract: | In order to know the internal temperature distribution under two-dimensional heat radiating,the temperatures and their changes were measured from the peak hydration temperature within different positions in concrete specimen by embedding temperature sensors.Results show that under the condition of two-dimensional heat radiating,inner temperatures in concrete are affected by two directions.As coming close to the surface the temperature declines faster with time,which results in greater temperature difference... |
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| Keywords: | concrete temperature gradient temperature stress two-dimensional heat radiating |
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