摘要
针对温拌沥青混合料所具有的节能减排效果进行了定量分析。首先,分别在拌和厂、施工现场以及试验室测试了有害气体排放的情况。结果表明:(1)与热拌沥青混合料相比,采用温拌沥青混合料可大大降低在拌和生产过程中所排放出的有害气体,其中二氧化碳和氧化氮类气体的排放分别下降60.0%和72.6%;(2)温拌沥青混合料在摊铺过程中所排放出沥青烟、苯可溶物及苯并[a]芘都可比热拌沥青混合料下降80%以上;(3)沥青混合料的温度达到140℃左右时,沥青烟等的排放量会成倍急剧上升。其次,采用理论计算和实际测试相结合的方法,确定了温拌混合料的节能效果。计算结果表明:改性和未改性的温拌沥青混合料可分别比相应的热拌沥青混合料节约能耗28.7%和22.9%。
The effects of energy saving and emission reduction of warm mixed asphalt was quantitatively analyzed. First, the harmful gas emissions were tested in mixing plant, the construction site and laboratory. The result shows that （ 1 ） comparing with the HMA, harmful gas emissions of WMA in mixing process can be greatly decreased, carbon dioxide and oxides of nitrogen gas emissions go down 60.0% and 72.6% respectively; （2） the harmful emissions of WMA in the process of paving can be significantly reduced, the emissions of asphalt gas, benzene-soluble organics and benzopyrene [ a] drop more than 80%; （3） with the mixing temperature rises, especially it reaches about 140℃, the emissions of asphalt gas, benzene-soluble organics and benzopyrene [a] would be multiple increased dramatically. Second, theoretical calculation and practical test were carried out as a combination to determine the effects of energy saving. The result shows that WMA with and without modifier can reduce energy consumption 28.7 % and 22.9% respectively comparing with the corresponding HMA.
出处
《公路交通科技》
CAS
CSCD
北大核心
2009年第8期33-37,共5页
Journal of Highway and Transportation Research and Development
基金
交通部西部交通建设科技资助项目(2006318223114)
关键词
道路工程
温拌沥青混合料
测试分析
沥青烟
温室气体
节能
减排
road engineering
warm mixed asphalt
test and analysis
asphalt gas
greenhouse gas
energy saving
emission reduction
