橡胶改性沥青混合料路面建设能耗与碳排放评价  

Evaluation on Energy Consumption and Carbon Emission of Rubber Modified Asphalt Mixture Pavement

作　　者：张红波 陈海涛 徐升 李平[3] ZHANG Hongbo;CHEN Haitao;XU Sheng;LI Ping(Guangxi Key Laboratory of Road Structure and Materials,Naning,Guangxi 530000,China;Guangxi Communications Technology Group Co.,Ltd.,Naning,Guangxi 530000,China;Changsha University of Science&Technology,Changsha,Hunan 410007,China)

机构地区：[1]广西道路结构与材料重点实验室,广西南宁530000 [2]广西交科集团有限公司,广西南宁530000 [3]长沙理工大学,湖南长沙410007

出　　处：《公路工程》2021年第3期154-164,共11页Highway Engineering

基　　金：广西科技重大专项(桂科AA18242032);国家自然科学基金项目(51878075);广西重点研发计划项目(桂科AB19245019);广西重点研发计划项目(桂科AB17292035)。

摘　　要：为研究橡胶改性沥青混合料路面建设中的能耗与碳排放,根据生命周期分析方法(LCA),将橡胶沥青路面建设期分为原材料生产、原材料运输及路面施工3个阶段,建立沥青路面碳排放与能耗模型。着重对比单位质量基质沥青/SBS改性沥青/橡胶沥青、单位体积基质沥青混合料/SBS改性沥青混合料/橡胶沥青混合料的能耗与碳排放量,并模拟5种路面结构方案的能耗与碳排放量。研究表明:将单位质量沥青能耗与碳排放进行排序:SBS改性沥青>橡胶沥青>基质沥青;SBS/橡胶改性沥青混合料的能耗与碳排放量高于基质沥青混合料;对比分析5种路面结构方案发现,总建设周期过程中碳排放与能耗排序为:原材料生产>路面施工>原材料运输;在原材料生产阶段,碳排放与能耗占比排序:沥青>集料>矿粉,其中橡胶沥青的节能减排效果优于SBS改性沥青;在运输阶段,各结构方案间能耗与碳排放量差距较小;在施工阶段,碳排放与能耗排序均为:拌和>碾压>摊铺>运输;同路面结构条件下,中上面层使用橡胶沥青可有效降低能耗与碳排放。In order to study the energy consumption and carbon emissions in the construction of rubber modified asphalt mixture pavement,according to the life cycle analysis method(LCA),the rubber asphalt pavement construction period is divided into three stages:raw material production,raw material transportation and pavement construction,and the asphalt pavement is established.Carbon emission and energy consumption model.Focus on comparing the energy consumption and carbon emission per unit mass of base asphalt/SBS modified asphalt/rubber asphalt,unit volume of base asphalt mixture/SBS modified asphalt mixture/rubber asphalt mixture,and simulate the energy of 5 pavement structure schemes Consumption and carbon emissions.The research shows that the energy consumption and carbon emissions per unit mass of asphalt are ranked,SBS modified asphalt>rubber asphalt>matrix asphalt;the energy consumption and carbon emissions of SBS/rubber modified asphalt mixture are higher than those of matrix asphalt mixture;A comparative analysis of five road structure schemes found that the order of carbon emissions and energy consumption during the total construction cycle is:raw material production>pavement construction>raw material transportation.In the raw material production stage,the proportion of carbon emissions and energy consumption is ranked,asphalt>aggregate>mineral powder.The energy saving and emission reduction effect of rubber asphalt is better than that of SBS modified asphalt.In the transportation phase,the gap between energy consumption and carbon emissions among the structural schemes is relatively small.In the construction phase,the order of carbon emission and energy consumption is mixing>rolling>paving>transportation;under the same road structure,the use of rubber asphalt in the middle and upper layers can effectively reduce energy consumption and carbon emissions.

关 键 词：生命周期分析方法 能耗 碳排放量 改性沥青 

分 类 号：U414[交通运输工程—道路与铁道工程]