Sprayed rock wool is composed of cement, rock wool fiber, and water. Freshly applied sprayed rock wool shows potential as a CO2-fixing material. In this study, its carbon capture performance was evaluated using TG-DTA. The results showed that, due to its low density, under ambient atmospheric conditions, approximately 50kg/ton of CO2 was fixed over an average of six months, and it was confirmed that 130kg/ton of CO2 was fixed on average throughout the service period. Furthermore, it was found that carbonation of the sprayed rock wool has minimal impact on the fire resistance of protected steel elements.
Otomonai et al. (Sat,) studied this question.