Diffusion of chloride in concrete : theory and application by E. Poulsen, L. Mejlbro

By E. Poulsen, L. Mejlbro

This publication is the main accomplished and versatile concept of chloride ingress in concrete up to now. in line with try out effects and box observations, the e-book demonstrates the straightforward program of this idea to perform.
The info is gifted in a transparent sort with each one bankruptcy containing an creation, technical purposes and examples, and a last part masking the maths at the back of the idea, to let the reader to acquire a deeper perception into the topic.
Primarily geared toward practicing engineers engaged in research and layout of concrete buildings uncovered to a chloride encumbered atmosphere, this ebook is additionally an invaluable reference for mathematicians and engineering scholars.

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Sample text

Chloride containing de-icing salts Not all de-icing salts contain chloride, but the de-icing salt containing chloride is the cheapest and the most efficient. Especially sodium chloride, NaCl, is cheap and therefore commonly used. Not only RC structures suffer from de-icing salts; so do plantations along roads. When removing ice from RC structures by means of chloride containing deicing salts, the structure will be exposed to chloride through the melt water as well as from traffic splash. The melt water often has a very high concentration of chloride.

4. 5 Corrosion multi-probes Chloride-induced corrosion of reinforced steel is one of the major causes of deterioration of marine RC structures and de - iced infrastructures. When CHAPTER 1. 22: A severe pitting corrosion of reinforcement of a bridge deck. Notice, that the second layer of reinforcement shows no corrosion, indicating that the aggressive substances (chlorides) have penetrated from the surface. corrosion of reinforcing steel bars due to chloride attack occurs, the concrete will spall.

Just a small inclination of a concrete surface may dry out the surface. Also details of a joint are important. As a rule of thumb the details ought to be designed so that they can dry out as soon as possible. It should also be considered that the structure is open for inspection, maintenance and repair. The thickness and quality of the concrete cover of the reinforcement is very important for the length of the initiation period of time. 2. 4 Test methods There are several laboratory test methods and in-situ test methods for chloride ingress into concrete, cf.

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