This is an experimental study on manufacturing of non-cement matrix. Materials like cement and blowing agent in foamed concrete is replaced by by-products from blast furnace slag and paper ash. Further, the experiment was performed by replacing alkali with natural gypsum by (0, 5, 15, 20, 25, 35, 45) of weight of alkali (wt.%) in order to reduce the amount of expensive alkali activator. Sample NG-0.15 with density showed lowest. After this point, density increases as replacement ratio increases. The compressive strength test result, showed a similar trend with density. And it showed that compressive strength of the NG-0.45 was highest.

• 김윤미(한밭대학교 건설환경조형대학 건축공학과, 석사과정) | Kim, Yun Mi
• 이상수(한밭대학교 건설환경조형대학 건축공학과 부교수, 공학박사) | Lee, Sang Soo
• 박선규(목원대학교 공과대학 건축학부 조교수, 공학박사) | Pack, Sun Gyu 교신저자