浇注式导电沥青混凝土传导热效果  

Conduction Heat Effect of Conductive Gussasphalt Concrete

作　　者：王朝辉[1] 韩晓霞[1] 陈姣[1,2] 侯荣国 郑少鹏[4] WANG Chaohui;HAN Xiaoxia;CHEN Jiao;HOU Rongguo;ZHENG Shaopeng(School of Highway,Chang＇an University,Xi＇an 710064;Research Institute of Highway Ministry of Transport,Beijing 100088;National Engineering Laboratory for Surface Transportation Weather Impacts Prevention,Broadvision Engineering Consultants,Kunming 650041;Zhongjiao Tongli Construction Co.,Ltd.,Xi＇an 710075)

机构地区：[1]长安大学公路学院,西安710064 [2]中交通力建设股份有限公司,西安710075 [3]交通运输部公路科学研究院,北京100088 [4]云南省交通规划设计研究院陆地交通气象灾害防治技术国家工程实验室,昆明650041

出　　处：《材料导报》2018年第22期3891-3899,共9页Materials Reports

基　　金：云南省交通运输厅科技项目(KJZSW-2016-01)

摘　　要：为实现浇注式沥青混凝土钢桥面铺装融雪化冰的目的,制备了浇注式导电沥青混凝土,提出了其传导热效果的测试方法,全面研究了电极布设方式、碳纤维撒布量、导电相材料掺量对浇注式导电沥青混凝土传导热效果的影响规律,对比评价了不同类型浇注式导电沥青混凝土单层板传导热效果,并回归拟合了浇注式导电沥青混凝土温度随通电时间变化的曲线。结果表明:浇注式导电沥青混凝土电极材料宜采用铝电极,电压输出方式为交流电源,输出大小宜为54V;浇注式导电沥青混凝土最佳电极布设方式为竖向、碳纤维撒布量为170g/m^2、导电相材料掺量为0.8%;五种浇注式导电沥青混凝土中,竖向置入铜丝网混凝土传导热效果最优,铺设碳纤维带混凝土次之;在同一环境温度条件下,各类型混凝土中部的温度变化趋势与面层温度相同,基本呈线性变化。从而为浇注式导电沥青混凝土的工程应用奠定基础。In order to achieve the purpose of deicing or snow melting of conductive gussasphalt concrete steel deck pavement, conductive gussasphalt concrete was prepared, and its test method of conductive heat effect was put forward. The effects of electrode arrangement, carbon fiber spreading amount and conductive phase material on the conduction heat effect of conductive gussasphalt concrete were studied comprehensively. The conduction heat effect of different types of conductive gussasphalt concrete monolayer was evaluated and the curves of conductive gussasphalt concrete temperature with conduction time were fitted. The results showed that the electrode material of conductive gussasphalt concrete should be aluminum electrode, the voltage output mode should be AC, the output size should be 54 V. The best electrode layout of conductive gussasphalt concrete is vertical electrode, the amount of carbon fiber is 170 g/m 2, the mixing amount of conductive phase material is 0.8%. In the five kinds of conductive gussasphalt concrete, the vertical insert the copper wire net is the most effective, and layout the carbon fiber tape is the second. The temperature trend of the middle part of the concrete is the same as the surface layer under the same ambient temperature conditions, and the temperature is basically linear. It provides the foundation for the application of conductive gussasphalt concrete.

关 键 词：浇注式沥青混凝土 导电沥青混凝土 传导热 测试方法 融雪化冰 

分 类 号：U414[交通运输工程—道路与铁道工程] TB332[一般工业技术—材料科学与工程]