沥青路面热物性参数试验研究  

An Experimental Study on the Thermophysical Parameter of Bituminous Pavement

作　　者：张书立[1,2] 

机构地区：[1]天津大学,天津300072 [2]辽宁省辽阳公路路政管理局,辽阳111000

出　　处：《北方交通》2014年第2期72-74,78,共4页Northern Communications

摘　　要：沥青路面通行性能受温度影响较大,探究沥青路面温度场必须对沥青路面材料的热物性参数有较为深入的了解。试通过试验手段精确测量沥青路面各单质材料在不同温度下比热容的变化以及不同温度下各层路面材料导热系数的变化。此研究是精确测量路面材料热物参数的实践,测量结果较为精确稳定,可为关于路面性能在不同温度下的研究提供借鉴。The traffic performance of bituminous pavement is greatly influenced by temperature. To study the temperature field of the bituminous pavement, the thermophysical parameters of materials in bituminous pavement must be known and studied deeply. By testing, the changes of specific heat of each simple substance in the bituminous pavement under different temperature are measured, as well as the change rules of the thermophysical parameters of each layer of the road under different temperature. The study can offer accurate measurement to the thermophysical parameters of pavement materials and the measuring result is precise and accurate. So it can provide useful references to studies on pavement performance under various temperatures.

关 键 词：热物性参数 比热容 导热系数 沥青混合料 温度场 

分 类 号：U416.03[交通运输工程—道路与铁道工程]