Distribution relationships of exogenous chlorine ions in concrete

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  In this paper, the distributions and relationships among total, bound and free chloride ions in different forms in the concrete with different supplementary cementitious materials at different curing ages and large scale water-to-binder ratios were analyzed.The results show that the relationship between total and free chlorine ions content was found to be good linear, as well as total and bound chlorine ions content.The influence of total chlorine ions content to free chloride ions content is almost "unique" factors, and impact on the binding chloride ions content is lager too, but not the only factor.No matter how changes total chloride ions content, will not affect the ratio of free and bound chloride ions content, according to the analysis of the principle of chemical reaction balance, when to achieve balanced solidification of chloride ions in concrete, the relationship between the average of free and chemical bonding chloride ions content as follows:[bound-Cl] =0.0952[f-Cl]0.6347.
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