摘要
项目环境效益分析是当前国内外研究的重点。为了分析重庆地区常用预防性养护技术建设期碳排放量,该文基于生命周期方法,将建设期划分为材料生产、材料运输及机械施工三个阶段,根据碳排放系数与养护活动数据相乘原理建立碳排放模型,量化分析养护技术不同生产环节的碳排放强度,并且对比三种养护技术在整个建设期碳排放强度。研究结果表明:三种养护建设期整体碳排放强度顺序为薄层罩面技术>微表处技术>稀浆封层技术,其中材料生产阶段是所有养护技术碳排放的重要来源;薄层罩面技术在各个阶段的碳排放强度均最高,其中混合料生产是罩面技术材料生产阶段碳排放的重要来源,水泥生产是稀浆封层及微表处技术的重要来源。
The environmental benefit analysis of a project is a hot research at home and abroad.In order to analyze the carbon emissions of asphalt pavement with the common preventive maintenance technology under construction in Chongqing,this paper,based on the life cycle method,divided the construction period into three stages:materials production,materials transportation and mechanical construction,established a carbon emission model based on the principle of multiplying carbon emission coefficients and conservation activity data to quantitatively analyze the carbon emission intensity at different production links with the maintenance technology,and compared the carbon emission intensity of the three maintenance technologies during the entire construction period.The results showed that the overall carbon emission intensity in the three maintenance periods is as:the thin-layer covering technology>the micro surfacing technology>the slurry sealing technology,and the material production stage gives an important source of carbon emissions for all maintenance technologies.The thin layer cover technology produces the highest carbon emission intensity at all stages,and the mixture production gives an important source of carbon emissions of the cover technology while the cement production gives an important source of carbon emissions of the slurry sealing and micro surfacing technologies.
作者
余定洋
胡一舟
Yu Dingyang;Hu Yizhou
出处
《重庆建筑》
2021年第S01期24-27,共4页
Chongqing Architecture
关键词
沥青路面
预防性养护技术
建设期
碳排放
asphalt pavement
preventive maintenance technology
construction stage
carbon emission
