沥青路面温室气体排放评价方法

发布时间：2019-08-24 08:58

【摘要】：沥青路面温室气体排放显著,目前中国尚无全面的沥青路面建设过程温室气体排放评价体系。应用生命周期评价法,根据新建沥青路面工程建设过程划分了沥青路面温室气体排放评价体系边界,提出了各建设阶段温室气体排放评价指标,研究了温室气体排放指标的测算方法,以此为基础建立了中国沥青路面建设过程温室气体排放指标的综合评价体系;同时,针对中国典型路面结构进行了温室气体排放评价分析。研究结果表明:沥青面层拌和阶段温室气体排放量居首位,占总量的50%以上,其次是原材料生产阶段;节能减排措施应以机械设备能耗控制为主,选用节能高效的机械设备,优化施工组织设计;半刚性基层/底基层原材料生产阶段排放最大,约占总排放量的98%,其中水泥排放占92%,节能减排措施应以原材料控制为主,选用高效节能方法生产水泥产品。
[Abstract]:The greenhouse gas emission of asphalt pavement is remarkable. At present, there is no comprehensive evaluation system of greenhouse gas emission in asphalt pavement construction process in China. Based on the life cycle assessment method, the boundary of greenhouse gas emission evaluation system of asphalt pavement is divided according to the construction process of new asphalt pavement project, the greenhouse gas emission evaluation index of each construction stage is put forward, and the calculation method of greenhouse gas emission index is studied. On this basis, the comprehensive evaluation system of greenhouse gas emission index of asphalt pavement construction process in China is established. At the same time, the greenhouse gas emission evaluation and analysis are carried out for the typical pavement structure in China. The results show that the greenhouse gas emissions in the asphalt surface mixing stage are the first, accounting for more than 50% of the total, followed by the raw material production stage, the energy saving and emission reduction measures should be based on the energy consumption control of mechanical equipment, the selection of energy-saving and efficient mechanical equipment, and the optimization of construction organization design. The discharge of semi-rigid base / subbase raw materials in the production stage is the largest, accounting for 98% of the total emissions, in which cement emissions account for 92%. The measures of energy saving and emission reduction should be based on raw materials control, and high efficiency and energy saving methods should be selected to produce cement products.
【作者单位】：长安大学公路学院;
【基金】：交通运输部科技项目(2011 318 812 1270)
【分类号】：U416.217;X734

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