Diffusion of Chloride Ions in Limestone Powder Concrete
نویسندگان
چکیده
منابع مشابه
Controlling chloride ions diffusion in concrete
The corrosion of steel in concrete is mainly due to the chemical reaction between the chloride ions and iron ions. Indeed, this is a serious threaten for reinforced concrete structure, especially for the reinforced concrete structure in the sea. So it is urgent and important to protect concrete against chloride ions corrosion. In this work, we report multilayer concrete can cloak chloride ions....
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Based upon the statistical distribution of flexural fatigue life data and flexural fatigue strength of the steel fibre reinforced concrete (SFRC) containing blends of limestone powder (LP) and silica fume (SF), the influence of these inserts on the flexural fatigue performance of concretes is probed. Concrete mixes were proportioned to replace 30% cement with these mineral inserts in different ...
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The influence of a chloride-ion adsorption agent (Cl agent in short), composed of zeolite, calcium aluminate hydrate and calcium nitrite, on the ingress of chloride ions into concrete and mortar has been experimentally studied. The permeability of concrete was measured, and the chloride ion content in mortar was tested. The experimental results reveal that the Cl agent could adsorb chloride ion...
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Methods which can be used to assess the chloride permeability of various types of concrete in a relatively short time are described. An electrical potential from 60-80 volt DC is applied either between a chloride solution ponded on a slab surface and the top of rebar mat, or between two faces at a core taken from a structure. The amount of chloride and sum of the electrical current which passes...
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P i l o t p lan t t e s t s have been conducted t o evaluate the e f f e c t s o f magnesium and c h l o r i d e ions on system performance o f 1 imestone-regenerated dual a1 ka l i processes under closed-loop operat ing cond i t i ons . It was found t h a t l imestone r e a c t i v i t y and s o l i d s dewatering p roper t i es a r e ve ry s e n s i t i v e t o magnesium i o n concentrat ions...
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ژورنال
عنوان ژورنال: Journal of the Korea Concrete Institute
سال: 2004
ISSN: 1229-5515
DOI: 10.4334/jkci.2004.16.6.859