电热沥青膜材料开发及其性能研究

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王黎明,吴文杰.电热沥青膜材料开发及其性能研究[J].,2017,57(4):396-402

电热沥青膜材料开发及其性能研究

Material development and performance study for electric heating asphalt film

DOI：10.7511/dllgxb201704010

中文关键词:道路工程电热沥青膜抗剪切试验电阻率碳纤维石墨

英文关键词:road engineering electric heating asphalt film shear test resistivity carbon fiber graphite

基金项目:中央高校基本科研业务费专项资金资助项目(2572014CB22).

作者	单位
王黎明,吴文杰

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中文摘要:

为提高电加热融冰雪路面的效率和解决既有方案的不足，提出了一种电热沥青膜除冰雪方案，并对其材料组成和材料性能进行了深入研究．电热沥青膜所用导电胶浆由石墨、短切碳纤维与沥青混合而成，其电阻率低至1×10 -2 Ω·m，可按黏层或封层工艺铺筑于层间．模拟工程状态进行的导电性能试验表明，按黏层用量铺设的沥青膜即可达到融冰功率所需的电阻值，且其连续性不受施工过程显著影响．同时，力学性能试验表明，导电胶浆铺设的沥青膜完全满足层间抗剪切和抗拉拔的技术要求．

英文摘要:

In order to improve the efficiency of electric heating system for deicing pavement and solve problems of current techniques, an electric heating asphalt film scheme for deicing is proposed and the advanced study on its material components and performance is carried out. The electric heating asphalt film is made of conductive mortar which is a mixture of graphite, short carbon fiber and asphalt. The film whose resistivity could be low as 1×10 -2 Ω·m can be paved between layers by the construction technology of tack coat or seal coat. Conductive performance tests conducted by the engineering state simulation prove that it has achieved the resistance value of deicing power when it is paved with the dosage of tack coat and the construction process does not significantly affect its continuity. At the same time, the mechanical property tests show that the asphalt film made of conductive mortar can fully meet the interlayer anti-shear and anti-drawing technical requirements.

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