The purpose of this study is to compare the compression strength of gypsum substituted mortar with that of mortar. After replacing the cement with the loess, a portion of the remaining cement was replaced with gypsum to make specimens. When the gypsum is replaced, the strength of all the specimens is lower than that of the standard specimen. It is necessary to use a long-term strength mixed material to replace this.

Abstract
 1. 서 론
 2. 사용재료
 3. 해석결과 및 고찰
 4. 결 론
 참고문헌

• 김종우(강남대학교 건축공학과) | Kim Jong Woo
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