在混凝土的修复过程中的腐蚀抑制剂和其他保护系统

在混凝土的修复过程中的腐蚀抑制剂和其他保护系统： 真正的理解或者误解(中文3200字,英文3000字)
摘要
在最近的一段时间内，在世界的很多地方，早期钢筋的腐蚀而对混凝土结构产生的早期恶化和损坏，已经成为混凝土结构方面的主要问题。加速这个恶化过程的一个主要因素是混凝土结构所存在的环境和气候状况。恶劣的环境与低质量的混凝土加上有或无缺陷的设计和建设惯例，这都使结构恶化的过程变得具有交互性，累积得非常迅速，进而形成一种恶性的发展，而且很难被停止。很多混凝土结构耐久性差的性能正引起结构产生裂缝.而在补救工作的支出，则使物主和社会所不能承担，并且他们也不希望看到悲剧重演。这篇文章仅提出一些对钢筋腐蚀和保护选择的初步认识，而对混凝土和混凝土修理的抑制混合物腐蚀的影响则进行了详细讨论。与抑制剂在修理效力有关的复杂论文已经发表，其中主要对基于电化学活动在新结构和修复结构方面之间差别进行了分析。随着盲目的对需要修理的混凝土使用那些适用于新建筑的保护方法，文章断定："修复混凝土"的生意将会越来越好。一种对新的和需要修理的混凝土之间的电化学差别的更广泛理解认为对修理的结构使用有效的钢筋保护是必要的。

Corrosion inhibitors and other protective systems in concrete repair: concepts or misconcepts
Abstract
In recent times in many parts of the world, reinforcement corrosion has become the main factor in early, premature deterioration, and sometimes failure, of concrete structures. One of the major factors contributing to this deterioration process is the environmental and climatic conditions to which a concrete structure is exposed. When the severity of environment is compounded with poor quality concrete and/or defective design and construction practices, the process of deterioration becomes interactive, cumulative and very rapid, and a cancerous growth that cannot be easily stopped. The poor durability performance of many concrete structures is causing disruption and expenditure on remedial works which owners and society cannot afford and do not wish to see repeated. A glimpse of reinforcement corrosion and some of the protection options is presented in this paper. The effect of corrosion inhibiting admixtures in concrete and concrete repair is discussed in detail. The complex issue related to the effectiveness of inhibitors in repairs is addressed, based on analysis of the differences between electrochemical activities in new and repaired structures. The paper concludes that as long as one continues to blindly use protection methods applicable for newly constructed structures for concrete repairs, the business of "repairing the repairs" will be on the rise. A broader understanding of the electrochemical differences between new and repaired concrete is necessary for effective protection of reinforcement in repaired structures.
2003 Elsevier Ltd. All rights reserved.
Keywords: Alkalinity; Corrosion protection; Durability; Inhibitors; Reinforcement