Case studies of concrete deterioration in a marine environment in Portugal
Case studies of concrete deterioration in a marine environment in Portugal
复制标题
DOI：
10.1016/s0958-9465(01)00037-3
复制
发表时间：
2002-02-01
影响因子：
10.5
通讯作者：
Appleton, J
中科院分区：
文献类型：
--
作者：
Costa, A;Appleton, J
混凝土结构的长期性能表明，它们的主要原因是钢筋腐蚀。对混凝土来说，最恶劣的暴露条件之一是海洋环境。在这些条件下，氯化物渗透和氯化物引起的钢筋腐蚀速率可能非常高，通常会导致使用寿命缩短。本文描述了一系列不同类型的混凝土结构的案例研究，这些结构受到海洋环境中几种暴露条件的影响，由于氯化物引起的腐蚀而遭受了广泛的恶化。描述了不同暴露条件下的不同程度的恶化，并说明了钢筋和预应力混凝土结构中不同类型的腐蚀。(C) 2002 Elsevier Science Ltd.版权所有。
The long-term behaviour of concrete structures has shown that their main cause of distress is reinforcement corrosion. One of the most aggressive exposure conditions for concrete is the marine environment. In these conditions chloride penetration and chloride-induced reinforcement corrosion rates can be very high, often leading to a reduced service life. This paper describes a series of case studies of different types of concrete structures, subject to several exposure conditions in the marine environment, that suffered extensive deterioration due to chloride-induced corrosion. Several degrees of deterioration associated with different exposure conditions are described and different types of corrosion both in reinforced and prestressed concrete structures are illustrated. (C) 2002 Elsevier Science Ltd. All rights reserved.