Chlorides in concrete :
If chloride is present in concrete there is increased risk of corrosion of embedded steel. The higher the chlorides content or if the structure is exposed to warm moist conditions, the greater is the risk of corrosion. All the constituents may contain chloride and concrete may contaminated by chloride from environment. To minimize the change of deterioration of concrete from harmful chemical salts, the levels of such harmful salts in concrete coming from concrete making material like cement. aggregate, water and admixture, as well as by diffusion from the environment should be limited. The total acid soluble chloride content should be calculated from the mix proportion and the measured chloride content of each of the constituents. The total chloride content (as Cl ) in concrete at the time of placing shall be as given in table
If chloride is present in concrete there is increased risk of corrosion of embedded steel. The higher the chlorides content or if the structure is exposed to warm moist conditions, the greater is the risk of corrosion. All the constituents may contain chloride and concrete may contaminated by chloride from environment. To minimize the change of deterioration of concrete from harmful chemical salts, the levels of such harmful salts in concrete coming from concrete making material like cement. aggregate, water and admixture, as well as by diffusion from the environment should be limited. The total acid soluble chloride content should be calculated from the mix proportion and the measured chloride content of each of the constituents. The total chloride content (as Cl ) in concrete at the time of placing shall be as given in table
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