Experimental Study of Chlorides Ion Diffusion Characteristics under Combined Condition of Chlorides and Sulfates

염해 및 황산염의 복합작용에 따른 염소이온 확산특성의 실험적 연구

The test results on the deterioration process of concrete under single and combined action of chloride penetration have been obtained. Within the test period of 15 weeks, it is seen that the internally penetrated chloride ion contents are slightly less in the combined action of NaCI and $Na_2SO_4$ than the single action of NaCI. Also the theoretical prediction of chloride penetration based on measured diffusion coefficient agress well with the test data of single deterioration process but disagress with that of combined process. Therefore it should be needed that improved chloride diffusion model for the combined deterioration process.