젤라틴을 유기물 바인더로 활용한 친환경 복합체의 배합에 따른 재료 특성 (Material Properties of Eco-friendly Composite Using Gelatin as an Organic Binder according to the Mix Proposition)

서지정보

· 발행기관 : 대한건축학회
· 수록지 정보 : 대한건축학회논문집 / 39권 / 2호 / 279 ~ 285페이지
· 저자명 : 박지윤, 이종구

초록

젤라틴은 단백질 유래 친환경 바인더로, 높은 부착강도와 무독성을 갖는다. 이러한 성질을 활용하여 최근 젤라틴을 골재의 바인더 및 생물학적 배지로 활용하는 연구가 진행되고 있다. 본 연구에서는 젤라틴 용액을 바인더로 한 잔골재-젤라틴 복합체의 배합에 따른 굳지 않은 상태의 성질 및 기건 양생에 따른 역학 성능을 측정하였다. 실험 결과 젤라틴 용액의 미네랄 기질에 대한 부착강도는 일반 시멘트 페이스트의 부착강도를 상회하는 것으로 나타났으며, 젤라틴-잔골재 복합체는 배합에 따라 최대 9MPa에 달하는 압축강도를 나타내었다.

영어초록

Gelatin is a protein-derived material that is a biological medium and a binder that can exhibit mechanical performance. In previous studies, anew concept of Living Building Material (LBM) was suggested using gelatin as a medium for cyanobacteria, but research on the mechanicalperformance of LBM according to the gelatin mix proposition was insufficient. In this study, the effect of mix proposition on the mechanicalperformance of a sand-gelatin solution composite was investigated. As a result, the mechanical performance of it was expressed as the gelatincrosslink formed between sand particles. The flexural or compressive strength ratio of the sand-gelatin composite was higher than that of thecement mortar since the bond strength of the gelatin solution to the mineral substrate exceeded that of the cement paste. The concentrationof the gelatin solution had a greater effect on the compressive strength than the solution or sand ratio; in the case of a 20% gelatin solution,the average compressive strength at 28 days of curing was expressed to be up to 7.59MPa. On the contrary, the properties of the fresh-statecomposite were majorly affected by the gelatin or sand ratio while the flow and setting time tended to increase as the ratio increased.

참고자료

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