基于多因素的除冰盐评估与选择
Evaluation and Selection of De-Icing Salt Based on Multi-Factor.
作者信息
Ke Guoju, Zhang Jun, Tian Bo
机构信息
Department of Civil Engineering, Tsinghua University, Beijing 100084, China.
Research Institute of Highway Ministry of Transport, Beijing 100088, China.
出版信息
Materials (Basel). 2019 Mar 19;12(6):912. doi: 10.3390/ma12060912.
De-icing salts can greatly ease traffic congestion but introduce corrosion of concrete and damage to plant growth. The decision of which de-icing salt to use becomes a crucial issue. In this study, several representative de-icing salts were investigated, and the effects of de-icing ability, salt freezing corrosion on concrete, and plant growth were comprehensively tested. Finally, the decision of de-icing salt was made based on analytic hierarchy process (AHP). Results show that de-icing salts achieving the best de-icing effect are not the same at different concentrations. De-icing salts of 3% concentration have the greatest corrosion to concrete. Notably, magnesium chloride and calcium magnesium acetate have the least impact on plants among all studied de-icing salts. Using AHP, ethylene glycol and calcium magnesium acetate are selected as optimal items under different priorities.
除冰盐可以极大地缓解交通拥堵，但会导致混凝土腐蚀并损害植物生长。选择使用哪种除冰盐成为一个关键问题。在本研究中，对几种有代表性的除冰盐进行了调查，并全面测试了除冰能力、盐冻对混凝土的腐蚀以及对植物生长的影响。最后，基于层次分析法（AHP）做出了除冰盐的选择决策。结果表明，不同浓度下达到最佳除冰效果的除冰盐并不相同。浓度为3%的除冰盐对混凝土的腐蚀性最大。值得注意的是，在所有研究的除冰盐中，氯化镁和醋酸钙镁对植物的影响最小。使用层次分析法，乙二醇和醋酸钙镁在不同优先级下被选为最佳选项。
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