温拌与热拌沥青混合料碳排放量对比实例研究

Comparative Case Study on Carbon Emissions of Warm Mix & Hot Mix Asphalt Mixture

沥青混合料的碳排放评价和低碳减排技术的推广应用一直是研究的热点。根据沥青路面建设阶段划分和工程实际调查,结合国际能源碳排放因子及全球变暖潜值,建立适用于我国公路沥青路面建设期碳排放量评价的计算模型,并结合实体工程对比研究温拌与热拌沥青路面碳排放量。计算结果表明:温拌沥青混合料比热拌沥青混合料碳排放量减少46.8%,环境效益显著,是高效可行的低碳减排技术方案,具有广阔的推广前景。

Carbon emission assessment of asphalt mixture and popularization & application of low-carbon emission reduction technology have been a hot research topic. According to the division of asphalt pavement construction stages and the actual investigation of the project,combined with the international energy carbon emission factors and global warming potential, a calculation model suitable for the evaluation of carbon emissions of highway asphalt pavement construction period in China is established, and combined with the actual project, the carbon emissions of warm mix & hot mix asphalt pavement are compared & studied. The results show that warm mix asphalt mixture can reduce carbon emissions by 46.8% compared with hot mix asphalt mixture, and has remarkable environmental benefits. It is an efficientand feasible low-carbon emission reduction technology scheme and has broad prospects for popularization.