台背回填高强轻质流态土用发泡剂污染物成分分析研究  

Analysis and Research on Pollutant Composition of Foaming Agent Used in High Strength and Light Liquid Soil Backfill Behind Abutment

作　　者：李轶然 陈朋 冉德钦 惠冰 Li Yiran;Chen Peng;Ran Deqin;Hui Bing(Shandong Transportation Research Institute,Shandong,250102)

机构地区：[1]山东省交通科学研究院,山东250102

出　　处：《当代化工研究》2021年第8期139-140,共2页Modern Chemical Research

基　　金：山东省交通运输科技项目“台背回填高强轻质流态土填筑材料应用技术研究”;山东省交通科学研究院技术服务项目“公路工程桥涵台背回填土沉降探查与注浆控制关键技术研究”。

摘　　要：台背回填高强轻质流态土填筑材料可以有效解决"桥头跳车"问题,本文研究了这种绿色低碳材料所用的发泡剂释放的污染物。结果显示:污染物中总挥发性有机物、苯、甲苯+二甲苯、游离甲醛浓度均在合格范围内;在三种温度下研究了污染物中的非甲烷总烃,非甲烷总烃的浓度随着温度的升高而升高,180℃的浓度为3.90mg/m^(3),在允许范围之内。生产使用时,应注意通风和监测。The problem of"bump at bridge head"can be effectively solved by filling abutment back with high-strength light-weight liquid soil.This paper studies the pollutants released by foaming agent used in this green and low-carbon material.The results showed that the concentrations of total volatile organic compounds,benzene,toluene+xylene and free formaldehyde in the pollutants were within the acceptable range;the concentrations of non methane hydrocarbons in the pollutants were studied at three temperatures,and the concentrations of non methane hydrocarbons increased with the increase of temperature,and the concentration at 180℃was 3.90mg/m^(3),which was within the allowable range.During production and use,attention should be paid to ventilation and monitoring.

关 键 词：台背回填 轻质流态土 发泡剂 污染物 非甲烷总烃 

分 类 号：X511[环境科学与工程—环境工程]