| Title |
Compressive Strength and Fire Resistance of Two-component Alkali-activated Composites Containing Ferronickel Slag Powder |
| Authors |
최세진(Choi, Se-Jin) ; 이재인(Lee, Jae-In) ; 박정연(Park, Jeong-Yeon) |
| DOI |
https://doi.org/10.5659/JAIK.2026.42.1.363 |
| Keywords |
Alkali-activated Composite; Cement Composite; Fire Resistance; Mortar; Paste |
| Abstract |
Recent studies on alkali-activated composites have focused on using only supplementary cementitious materials (SCMs) such as granulated
blast furnace slag, fly ash, and ferronickel slag to achieve both fire resistance and environmental benefits. However, the performance of
alkali-activated composites varies depending on the type of alkali activator, and research combining both calcium-based and sodium-based
activators remains limited. This study evaluated the mechanical and fire resistance performance of cement composites and alkali-activated
composites using both types of activators. Although the alkali-activated composites showed lower compressive strength than the cement
composites, their internal temperature was up to 28.1 percent lower depending on heating time. In addition, exposure to high temperatures
caused numerous cracks in the cement composites, while the alkali-activated composites maintained greater homogeneity and experienced less
surface property change. |