| 硅藻土沥青混合料阻热性能及其对冻土地基的影响 |
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| 引用本文： | 陈团结,汪双杰,朱洪洲. 硅藻土沥青混合料阻热性能及其对冻土地基的影响[J]. 公路交通科技, 2011, 28(2): 25-30 |
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| 作者姓名： | 陈团结 汪双杰 朱洪洲 |
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| 作者单位： | 陈团结,CHEN Tuanjie(多年冻土区公路建设与养护技术交通行业重点实验室,陕西,西安,710075;长安大学,陕西,西安,710064);汪双杰,WANG Shuangjie(多年冻土区公路建设与养护技术交通行业重点实验室,陕西,西安,710075);朱洪洲,ZHU Hongzhou(长安大学,陕西,西安,710064) |
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| 摘 要： | 通过对硅藻土改性沥青混合料热传导性能试验研究,得出了不同硅藻土掺量条件下混合料的热传导系数和热容量参数,同时利用有限单元法对冻土地区公路的温度场变化情况进行了研究.室内试验结果表明,硅藻土改性沥青混合料的导热性能比普通沥青混合料有一定程度的降低,其中添加15%硅藻土的沥青混合料热的传导系数比普通沥青混合料降低10%左右...
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| 关 键 词： | 道路工程 阻热性能 有限元 硅藻土沥青混合料 |
Heat Insulation Property of Diatomite Modified Asphalt Mixture and Its Influence on Permafrost Subgrade |
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| CHEN Tuanjie,WANG Shuangjie,ZHU Hongzhou. Heat Insulation Property of Diatomite Modified Asphalt Mixture and Its Influence on Permafrost Subgrade[J]. Journal of Highway and Transportation Research and Development, 2011, 28(2): 25-30 |
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| Authors: | CHEN Tuanjie WANG Shuangjie ZHU Hongzhou |
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| Affiliation: | CHEN Tuanjie1,2,WANG Shuangjie1,ZHU Hongzhou3(1.Key Lab of Highway Construction and Maintenance Technology in Permafrost Regions,Xi'an Shaanxi 710075,China,2.Chang'an University,Xi'an Shaanxi 710064,3.Chongqing Jiaotong University,Chongqing 400074,China) |
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| Abstract: | By experimental research about the heat conductivity of diatomite modified asphalt mixture,the thermal conductivity coefficients and the thermal capacities of the asphalt mixture with different contents of diatomite were obtained.With these parameters and FE method,the variations of temperature field of highway in the permafrost were analyzed.The results from indoor experiments show that the conductivity of asphalt mixture decreases when the diatomite being added in the asphalt mixture,especially when the c... |
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| Keywords: | road engineering heat insulation property FEM diatomite modified asphalt mixture |
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