Effect of Environment Types and Chlorine Salt Concentration on Surface Chloride Concentrate of Slag Concrete

Chloride concentrations of slag concrete which is added 10%-70% slag subjected to three kinds of chlorine salt solutions,namely bittern from salt lake of Qinghai province,3. 5% Na Cl + 5%Mg SO4 solution,and 3. 5% Na Cl solution,were determined by chemical analysis and investigated in different exposed time. The effects of different environment types and chlorine salt concentration on surface chloride concentration were studied. It showed that,surface chloride concentration increases with the increase of chlorine salt concentration and the more complex ions of exposed environment,the higher the slag concrete surface chloride concentration. Surface chloride concentration of slag concrete increases with the increase of exposed time according to the nonlinear function.