【摘要】 针对沥青路面施工现场烟气排放监测比较随意的情况，结合净味沥青在长大隧道热拌热铺沥青路面施工中对烟气减排的工程应用，研究沥青路面施工现场的烟气采集与测评方法，并对净味沥青减排效果进行评价。在摊铺机的不同位置，采用苏玛罐对沥青烟气进行采集，通过GC-MS气质联用仪对沥青烟气进行定量分析。结果表明：与同源非净味沥青相比，使用净味沥青进行路面施工时，在摊铺机边位、侧翼中位、摊铺机上位3个采集点，沥青烟挥发性有机气体的总质量浓度减排了57.0%、22.6%、27.4%。摊铺机边位处，净味沥青混合料的施工现场中，1、2类致癌物气体的总质量浓度减排了62.3%，且其恶臭强度仅为非净味沥青混合料的1/3左右。通过研究，建议在沥青路面施工现场的烟气排放监测中，采用摊铺机边位处的总挥发性有机物质量浓度、2类以上致癌物总质量浓度及恶臭强度作为关键的环境影响评价指标。更多还原

【Abstract】 In view of the random monitoring of fume emission in asphalt pavement construction sites, combined with the engineering application of fresh asphalt in the construction of hot-mixed and hot-spread asphalt pavement in large and long tunnels for fume emission reduction, the fume collection and evaluation method of asphalt pavement construction sites were studied, and the emission reduction effect of fresh asphalt was evaluated. The Summa tanks were used to collect the asphalt fume at different positions of the paver, and the asphalt fume was quantitatively analyzed by gas chromatograph-mass spectrometer(GC-MS). The results show that compared with the non-fresh asphalt from the same source, the fresh asphalt reduces the total mass concentration of volatile organic compounds(VOCs) in the asphalt fume at the edge of the paver, the middle of the paver flank, and the upper position of the paver by 57.0%, 22.6%, and 27.4% during pavement construction, respectively. The fresh asphalt mixture reduces the total mass concentration of class 1 and 2 carcinogens by 62.3% at the edge of the paver during construction, and the odor intensity is only about 1/3 of the non-fresh asphalt mixture. The study suggests that the total mass concentration of VOCs, the total mass concentration of carcinogens exceeding class 2, and the odor intensity at the edge of the paver should be used as the key environmental impact assessment indexes for fume emission monitoring in the asphalt pavement construction site.更多还原