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水泥混凝土路面道路标线清除剂的制备与试验研究

发布时间:2018-11-25 13:38
【摘要】:随着高速公路的建设发展和车流量的迅猛增长,道路经常需要并网、改道、拓宽等处理,需要清除原来的道路标线,设置新的标线。 论文首先根据相似相溶原理,以苯乙醇和无水乙醇复配为主溶剂,CTMAB为表面活性剂,乳酸为促进剂,采用恒温搅拌制备了一种针对水泥混凝土路面道路旧标线漆的溶剂型清除剂。考察有机试剂对清除剂性能的影响,以及温度、搅拌速率等因素对清除效率的影响。同时探讨清除剂的性能、挥发速率及腐蚀性。结果表明:当苯乙醇的质量分数为21%,无水乙醇为49%,CTMAB为2%,乳酸为28%,在温度为90~95℃时,9~10mm对直径为50mm厚度为2cm的混凝土试块的涂漆试样的清除效果达到最佳。 其次根据水解原理,以NaOH为主溶剂,CTMAB为表面活性剂,尿素为助溶剂,1,2-丙二醇为辅助添加剂,在恒温水浴条件下制备了一种针对水泥混凝土路面道路旧标线漆的无机碱性清除剂。考察主溶剂、表面活性剂、助溶剂及辅助添加剂的种类、用量以及温度对清除效率的影响,同时探讨清除剂的性能、挥发速率及腐蚀性。结果表明,当NaOH为5g,CTMAB为0.3g,尿素为0.6g,1,2-丙二醇为0.2g,在温度为90~95"C时,9~10mm内可使直径为50mm厚度为2cm的混凝土试块的涂漆试样软化、脱落,所得清除剂的清除效果最高,挥发性和腐蚀性低。 最后在前期研究的基础上,通过现场试验,来检验放大试验后两种清除剂的使用性能和实际情况下的漆膜清除效果。通过验证信息的反馈,进一步优化两种清除剂的配方和实际使用操作工艺。通过现场试验,形成清除剂产品的施工工法。
[Abstract]:With the development of highway construction and the rapid growth of traffic flow, roads often need to be connected, diverted, widened and so on. It is necessary to clear the old road marks and set up new ones. Firstly, according to the principle of similar phase dissolution, the mixture of phenylethanol and anhydrous ethanol was used as main solvent, CTMAB as surfactant and lactic acid as accelerator. A solvent scavenger for old road marking paint of cement concrete pavement was prepared by constant temperature stirring. The effects of organic reagents on the performance of scavengers and the effects of temperature and stirring rate on the scavenging efficiency were investigated. At the same time, the properties, volatilization rate and corrosion of scavenger were discussed. The results show that when the mass fraction of phenylethanol is 21, the anhydrous alcohol is 49 and CTMAB is 2, lactic acid is 28, and the temperature is 90 ~ 95 鈩,

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