| Title |
A Study on the Evaluation of the Water-soluble Chloride Content and Free-chloride Content in Cement Pastes |
| Keywords |
염화물 ; 세공용액 ; 분말시료 ; 자유염화물 ; 물가용성 염화물 ; 전염화물 ; 염화물 고정화 |
| Abstract |
The purpose of this paper is to compare free-chloride content with water-soluble chloride in cement paste. The content of free-chloride in cement paste measured by pore solution analysis and water-soluble chloride measured by ASTM. Following result were obtained from the study above
1. The chloride bound ratio for a lower chloride addition (P1～P3) are 91.8～93.5 percent but the chloride bound ratio for a high chloride addition (P5) is only 77 percent.
2. In terms of acid-soluble chloride content of cement paste measured by ASTM are 93.5～102 percent of the chloride addition.
3. In terms of water-soluble chloride content in cement paste are 19～35 percent of chloride addition but free-chloride content in pore solution are 6.5～23 percent of chloride addition. The free-chloride content in pore solution is 26.5～66.7 percent lower for the water-soluble chloride content in cement paste. |