| Title |
The Influence of Sand-Gelatin Composite Porosity on Compressive Strength |
| Authors |
박지윤(Park, JiYoon) ; 이종구(Yi, Chongku) |
| DOI |
https://doi.org/10.5659/JAIK.2023.39.12.261 |
| Keywords |
Gelatin; Porosity; Eco-friendly biopolymer binder; Compressive strength |
| Abstract |
With a melting point at 30°C and adhesive strength of 4.12MPa, the nontoxic and eco-friendly biopolymer gelatin finds frequent use in the
food, pharmaceutical, and medical industries. Previous studies introduced gelatin as a component in the innovative concept of Living Building
Material (LBM), but insufficient attention was given to porosity. This study explores the relationship between porosity and the compressive
strength of gelatin-sand composite, aiming to understand how void space influences overall strength. Porosity was calculated by measuring the
density of the entire specimen. The compressive strength increased by 18% as porosity decreased by 15% from the 7th day to the 14th day.
Additionally, the adhesive strength of gelatin solution exhibited a 3.11 times increase from the first to the fourteenth day, similar to cement
mortar. The compressive strength in the sand-gelatin composite improved by 18% due to the enhanced gelatin adhesive strength. Furthermore,
SEM image analysis was conducted to observe the morphology of the sand-gelatin composite. |