沥青混凝土路面预防性养护技术碳排放量化分析

发布时间：2018-02-13 19:31

本文关键词： 路面工程养护技术生命周期评价方法碳排放　出处：《公路》2017年05期 　论文类型：期刊论文

【摘要】：为研究养护期沥青混凝土路面不同养护技术在应用过程中产生的碳排放,基于生命周期评价方法,将沥青混凝土路面养护工程划分为材料生产、运输及施工3个阶段。将产品清单与碳排放系数相乘,以定额法为主,理论法为辅,建立各阶段碳排放计算模型。计算了铣刨摊铺、就地热再生、厂拌热再生、薄层罩面以及微表处等5种技术碳排放强度,量化分析不同技术优势特征以及不同旧料掺量下的碳排放。研究结果表明:就地热再生技术机械施工阶段碳排放量最多,达到77%;而其他养护技术材料生产阶段碳排放量最多,达到70%以上;与铣刨重铺技术相比,就地热再生、微表处、超薄罩面和厂拌热再生碳排放降幅分别为37.6%、26.9%、19.8%和12.5%;对于厂拌热再生技术,RAP掺量对厂拌热再生减排效果显著,旧料掺量提高10%,碳排放强度下降0.6kg/(m~3·年)。
[Abstract]:In order to study the carbon emission produced by different curing technologies of asphalt concrete pavement during curing period, the maintenance engineering of asphalt concrete pavement is divided into material production based on life cycle evaluation method. In the three stages of transportation and construction, the product inventory and carbon emission coefficient are multiplied, the quota method is the main method, the theoretical method is auxiliary, and the calculation model of carbon emission in each stage is established. The carbon emission intensity of five technologies, such as thin layer covering and micro-surface, was quantitatively analyzed under different technical advantages and different amounts of used materials. The results showed that: in the construction stage of geothermal regeneration technology, the carbon emission was the most. The amount of carbon emitted during the production of other curing technologies is the highest, at more than 70%. Compared with the milling and planing technology, geothermal regeneration, microsurfacing, The reduction of carbon emissions from ultra-thin overlay and hot regenerated plant was 37.6% and 12.5%, respectively. For the technology of hot regeneration, the effect of rap was significant, the amount of used material increased by 10%, and the carbon emission intensity decreased by 0.6 kg / m ~ (-1) / 3 路yr ~ (-1) ~ (-1) ~ (-1) ~ (-1) ~ (-1) ~ (-1) ~ (-1) ~ (-1) ~ (-1) ~ (-1) ~ (-1), respectively.
【作者单位】：重庆交通大学土木工程学院;
【分类号】：U418.6

【相似文献】