沥青抑烟净味剂功能性验证研究  

Study on Functional Validation of Asphalt Fumes and Odor Inhibitors

作　　者：郭猛[1,2] 许文超 Guo Meng;Xu Wenchao(The Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education,Beijing University of Technology,Beijing 100124,China;State Key Laboratory of Bridge Engineering Satety and Resilience,Beijing University of Technology,Beijing 100124,China)

机构地区：[1]北京工业大学桥梁工程安全与韧性全国重点实验室,北京100124 [2]北京工业大学城市与工程安全减灾教育部重点实验室,北京100124

出　　处：《市政技术》2024年第6期244-249,255,共7页Journal of Municipal Technology

基　　金：国家重点研发计划(2022YFE0137300);国家自然科学基金(52078018)。

摘　　要：该研究旨在探究物理吸附材料和化学抑制材料对沥青烟气中颗粒物和苯类有机物释放的影响,以减少沥青烟气对施工人员健康和环境造成的危害。在实验室内模拟了沥青实际使用情况,采用聚四氟乙烯滤膜和环己烷吸收液对沥青烟气进行收集,通过重量法和气相色谱质谱联用试验研究了活性炭和净味剂B的抑制效果,并进一步考虑了二者对沥青路用性能的影响。通过中心复合模型得到了复合抑烟净味剂的最佳配方,即活性炭掺量为3.28%,净味剂B掺量为3‰。通过红外光谱试验和核磁共振氢谱试验得到了抑烟净味剂对沥青微观结构的影响,结果表明净味剂B主要由酯类化合物组成,复合抑烟净味剂的主要原理是通过使支链碳链变长,提高沥青沸点,从而达到了抑烟净味的效果。The effects of physical adsorption materials and chemical inhibition materials on the release of particulate matter and benzene organic compounds in asphalt smoke was explored in this study to reduce the harm of asphalt smoke to the health and environment of construction workers.The actual application of asphalt was simulated in the laboratory.The asphalt smoke was collected by Polytetrafluoroethylene filter membrane and cyclohexane absorption solution.The inhibitory effects of activated carbon and deodorant B were studied through weight method and gas chromatography-mass spectrometry combined experiments.The impact on asphalt road performance was further studied.The optimal formula for the composite smoke suppressant and deodorizer was obtained through the central composite model,which were an activated carbon content of 3.28%and a deodorant B content of 3‰.The effect of smoke suppressant and deodorizer on the microstructure of asphalt was obtained through infrared spectroscopy and nuclear magnetic resonance hydrogen spectroscopy experiments.The results showed that deodorizer B is mainly composed of ester compounds.The main principle of composite smoke suppressant deodorizer is to lengthen the branched carbon chain and increase the boiling point of asphalt to get the effect of smoke suppressant and deodorizer.

关 键 词：沥青烟 抑烟净味材料 抑烟性能 净味性能 抑烟净味原理 

分 类 号：U416.2[交通运输工程—道路与铁道工程]