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

By E. Poulsen, L. Mejlbro

This e-book is the main finished and versatile thought of chloride ingress in concrete to this point. in response to try effects and box observations, the ebook demonstrates the simple software of this conception to perform.
The details is gifted in a transparent kind with each one bankruptcy containing an creation, technical purposes and examples, and a last part overlaying the maths in the back of the speculation, to allow the reader to acquire a deeper perception into the topic.
Primarily geared toward training engineers engaged in research and layout of concrete constructions uncovered to a chloride encumbered atmosphere, this publication is additionally an invaluable reference for mathematicians and engineering scholars.

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Extra info for Diffusion of chloride in concrete : theory and application

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The chloride ingress into the concrete is determined using the profile grinding technique, cf. 26. e. the graph of the chloride content of the concrete versus the distance from the chloride exposed concrete surface. 5) for the relevant initial and boundary conditions. In order to be able to handle the information represented by the chloride profile in a simple way, a chloride profile is described by the following four parameters assuming the chloride ingress into the concrete to obey Fick’s second law of diffusion with constant chloride parameters.

The efficiency of concrete repairs (patch repairs). However, calcium nitrite is a set accelerator, and measures ought to be taken to prevent ‘flash setting’, cf. Broomfield (1997). 2. Cathodic corrosion inhibitors which adsorb on the steel surface and thus act as a barrier to the reduction of oxygen which is the primary cathodic reaction for steel in concrete. However, most cathodic inhibitors, such as amines, phosphates, zincates, and phosphonates severely increase set retardation of concrete, cf.

However, calcium nitrite is a set accelerator, and measures ought to be taken to prevent ‘flash setting’, cf. Broomfield (1997). 2. Cathodic corrosion inhibitors which adsorb on the steel surface and thus act as a barrier to the reduction of oxygen which is the primary cathodic reaction for steel in concrete. However, most cathodic inhibitors, such as amines, phosphates, zincates, and phosphonates severely increase set retardation of concrete, cf. Bentur et al. (1997). 3. Organic corrosion inhibitors or adsorption-type corrosion inhibitors, which appear to affect as well the anodic as the cathodic processes and thus being double-active.

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