施工工地扬尘影响素及抑尘措施研究.doc

` 郑州大学本科毕业论文 题 目： 施工工地扬尘影响因素及抑尘措施研究 指导教师： 刘忠玉 职称： 教授 学生姓名： 赵洋 学号： 20110420529 专 业： 土木工程 院（系）： 土木工程 完成时间： 2015年5月19日 摘 要 随着现代化进程的加快，空气污染问题越来越严重。在美国环境署的报告中出，空气污染92%来自扬尘，有23%来自建筑工地。可见，治理扬尘问题能有效的改善空气状况，提高人们生活质量的水平，降低呼吸道疾病的发病率，特别是由粉尘引起的尘肺癌等。因此，本文对于建筑工地扬尘影响因素以及抑尘措施的研究具有十分深远重大的意义。 本文将从建筑工地扬尘的产生开始，通过调查，分析，实验等措施，总结分析建筑工地中扬尘产生的影响因素，以及传统抑尘方法，对比分析各中优劣。并将在抑尘剂的选用过程中，对于某树脂类液体抑尘剂的抑尘效果以及抑尘效果的影响因素进行探究，并以比例为1:4的粉体盐类抑尘剂作为对比试验。试验结果表明，比例为1:4的粉体抑尘剂的抗高温保湿能力较差，且缺乏凝并和固结作用，但其抗风保湿能力较好；液体抑尘剂具有良好的凝并作用和固结作用，还具有一定的湿润作用；对液体抑尘剂来说，抑尘剂：水=1:20~1:30为合理配比。 关键词： 建筑工地，扬尘，抑尘剂，影响因素 Abstract With the modernization is speeding up developing, the problem of air pollution is more and more serious. the Environment Agencys report in the United States says that, 92% of air pollution from dust, 23% come from the construction site. Obviously, the problem of dust effectively improve the air condition, raise the quality,of peoples life . reduce the incidence of respiratory diseases, especially caused by dust dust lung cancer, etc. So we should study the influencing factors of dust and dust suppression measures .It is necessary. In this paper, we will summarize the main influencing factors of dust produced in the construction site and analysis the advantages and disadvantages of the traditional method of dust suppression by reading literature, fielding investigation, . To explore a resin type liquid dust suppression agent applied to the feasibility of the construction site, the effect of dust suppression and the influence factors of the dust suppression effect indoor simulation experiment research, with a ratio of 1:4 powder salt dust suppression agent as a contrast test. Test results show that the ratio of 1:4 powder dust suppression agent of poor ability to resist high temperature and moisture, and lack of coagulation and consolidation effect, but its ability to resist wind moisture better; Test with liquid dust suppressio