Performance of seawater-mixed concrete in the tidal environment
Performance of seawater-mixed concrete in the tidal environment
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DOI：
10.1016/j.cemconres.2003.09.020
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发表时间：
2004-04-01
影响因子：
11.4
通讯作者：
Yamaji, T
中科院分区：
文献类型：
--
作者：
Mohammed, TU;Hamada, H;Yamaji, T
本文根据潮汐环境下的多次长期暴露调查，总结了海水和自来水混凝土中钢筋的抗压强度、矿物学、氯离子侵入和腐蚀。海水混合混凝土表现出较早的强度增益。经过20年的暴露，海水和自来水混合的混凝土的抗压强度没有观察到显着差异。初始量的氯化物（由于使用海水）可能导致在浇注混凝土后立即在钢-混凝土界面处具有空隙/间隙的钢筋位置处开始腐蚀。与自来水相比，使用海水会导致形成更深的腐蚀坑。 (C) 2004 Elsevier Ltd. 保留所有权利。
Compressive strength, mineralogy, chloride ingress, and corrosion of steel bars embedded in concrete made with seawater and tap water are summarized here based on the several long-term exposure investigations under tidal environment. Seawater-mixed concrete shows earlier strength gain. After 20 years of exposure, no significant difference in the compressive strength of concrete is observed for concrete mixed with seawater and tap water. The initial amount of chloride (due to the use of seawater) may cause the initiation of corrosion at the locations of the steel bars having voids/gaps at the steel-concrete interface immediately after casting concrete. The use of seawater results in the formation of deeper corrosion pits compared to the same with tap water. (C) 2004 Elsevier Ltd. All rights reserved.