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低密度改性发泡水泥的热力学性能研究
作者：薛文韬1，方从启1，雷超1，李驰1，蔡蔚2，马忠政2
（1.上海交通大学 船舶海洋与建筑工程学院，上海 200240；2.上海轨道交通十四号线发展有限公司，上海 201103）
摘要：胶凝材料选用普通硅酸盐水泥，采用物理发泡法制备发泡水泥试块，研究了水胶比、密度等因素对发泡水泥热力学性能的影响。结果表明，密度是影响发泡水泥热力学性能的重要因素；水胶比的变化直接影响发泡水泥的导热系数和抗压强度。随着水胶比的增大，发泡水泥的导热系数下降。当水胶比为0.35时，发泡水泥表现出最优的力学性能。
关键词：发泡水泥；水胶比；密度；导热系数；抗压强度
中图分类号：TU528.2 文献标识码：A 文章编号：1001-702X（2017）04-0100-03
关键词：发泡水泥；水胶比；密度；导热系数；抗压强度
中图分类号：TU528.2 文献标识码：A 文章编号：1001-702X（2017）04-0100-03
Study on the thermodynamic properties of low density modified foamed cement
XUE Wentao1，FANG Congqi1，LEI Chao1，LI Chi1，CAI Wei2，MA Zhongzheng2
（1.Shanghai Jiao Tong University School of Architecture，Ocean & Civil Engineering，Shanghai 200240，China；
2.Shanghai Rail Transit Line 14 Development Co. Ltd.，Shanghai 201103，China）
XUE Wentao1，FANG Congqi1，LEI Chao1，LI Chi1，CAI Wei2，MA Zhongzheng2
（1.Shanghai Jiao Tong University School of Architecture，Ocean & Civil Engineering，Shanghai 200240，China；
2.Shanghai Rail Transit Line 14 Development Co. Ltd.，Shanghai 201103，China）
Abstract：In this study，the use of ordinary Portland cement，the physical foaming method to prepare foam cement test block， the effect of water binder ratio，bulk density and other factors on the thermodynamic properties of foamed cement were studied. Through the research： Density is an important factor affecting the thermodynamic properties of foamed cement. The change of water binder ratio has a direct impact on the thermal conductivity and compressive strength of foamed cement. With the increase of the ratio of water to cement，the thermal conductivity of foamed cement decreases. When the ratio of water to cement ratio is 0.35，the foamed cement exhibits the best mechanical properties.
Key words：foamed cement，water cement ratio，density，thermal conductivity，compressive strength
Key words：foamed cement，water cement ratio，density，thermal conductivity，compressive strength