保温材料在硫酸盐环境中的长期性能研究 |
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引用本文: | 刘增鑫,王文涛,冯瑞玲,冯南,涂洪亮,刘涛.保温材料在硫酸盐环境中的长期性能研究[J].路基工程,2013,0(1):23-26. |
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作者姓名: | 刘增鑫 王文涛 冯瑞玲 冯南 涂洪亮 刘涛 |
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作者单位: | 北京交通大学土木建筑工程学院,北京 100044 |
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基金项目: | 北京交通大学大学生创新性试验计划项目 |
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摘 要: | 硫酸盐渍土路基随气温变化产生盐胀导致道路破坏,是目前急需解决的问题。从影响盐渍土盐胀的因素之一的温度入手,针对EPS和PU两种保温材料,通过室内试验,研究了硫酸钠溶液浓度、冻融循环次数对其体积吸水率、抗压强度、导热系数等参数的影响,为两种材料在硫酸盐渍土路基中的应用提供参考和依据。
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关 键 词: | EPS PU 硫酸盐 长期性能 |
收稿时间: | 2019-11-08 |
Study on Lasting Performance of Thermal Insulation Material in Sulphate Environment |
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Authors: | LIU Zengxin WANG Wentao FENG Ruiling FENG Nan XU Hongliang LIU Tao |
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Abstract: | Damage to road arisen from salt expansion of sulphate salty soil subgrade as temperature changes is the trouble required to be solved urgently at present.Taking temperature,one of the factors affecting salt expansion of salty soil,into consideration at first,and in connection to EPS and PU insulation material,how concentration of sodium sulfate solution and freeze-thaw cycles affect the materials specific absorption of volume,compressive strength,thermal conductivity and other parameters is studied with indoor tests,which offers reference to and basis of application of both materials in sulphate salty soil subgrade. |
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