盐及融雪剂种类对混凝土剥蚀破坏影响的研究

Effects of Salt and Snow-Thawing Agent Types on Salt-Scaling Damage of Concrete

摘要:

研究了8种包括无机和有机化学物质的盐和融雪剂对混凝土盐冻破坏和化学侵蚀的影响,结果表明:只要是能除冰雪的化学物质,不论其化学组成,均会引起混凝土严重的盐冻剥蚀破坏,不存在所谓的对混凝土无害的除冰盐或融雪剂,因此,只要撒除冰盐或融雪剂,就必须对混凝土采取防治盐冻破坏的技术措施.另外,与盐冻破坏相比,除冰盐和融雪剂对混凝土的化学侵蚀破坏较小.

Abstract:

Effects of 8 different deicers or snow-thawing agents on the scaling of concrete were investigated.Results show that regardless of chemical compositions of substances,as long as they have thawing effects on ice or snow,they cause severely deicer-frost scaling of concrete,and therefore,for concrete,no harmless deicer or snow-thawing agent exist until now.Furthermore,compared to the deicer-frost scaling,the chemical attack of these salts on concrete is quite weak.