Salt Weathering of Concrete by Sodium Carbonate and Sodium Chloride
Salt Weathering of Concrete by Sodium Carbonate and Sodium Chloride
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DOI：
10.14359/51663754
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发表时间：
2010-05
期刊：
影响因子：
3.4
通讯作者：
H. Haynes;Rober O'Neill;M. Neff;P. Mehta
中科院分区：
文献类型：
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作者：
H. Haynes;Rober O'Neill;M. Neff;P. Mehta
将混凝土圆柱体部分浸没在5%碳酸钠或5%氯化钠溶液中长达3.1年。在试验过程中改变环境条件以促进各种盐的结晶，例如热硝钠盐（Na2CO3·H2O）、泡碱（Na2CO3·10H2O）或岩盐（NaCl）。在碳酸钠溶液中，温度和湿度的循环，交替，促进形成的热钠石和泡碱似乎是在混凝土表面的缩放困扰的主要原因。氯化钠溶液造成的痛苦是轻微的。
Concrete cylinders were partially submerged in 5% sodium carbonate or 5% sodium chloride solutions for up to 3.1 years. Environmental conditions were varied during the test to promote crystallization of various salts, such as thermonatrite (Na2CO3•H2O), natron (Na2CO3•10H2O), or halite (NaCl). In sodium carbonate solution, temperature and humidity cycles that, alternately, promoted the formation of thermonatrite and natron appeared to be the major cause of scaling distress at the concrete surface. Distress by sodium chloride solution was minor.