Fig. 5
From: Validated thermal model for bacterial survival in fire-resistant self-healing concrete
(a) Model-predicted bacterial survival times under varying furnace temperatures (200 °C to 800 °C). Survival time refers to the duration required for the center of the encapsulated region to reach the bacterial inactivation threshold of 70 °C. (Note: This prediction reflects thermal conditions at the core only and does not imply that functional bacterial recovery or self-healing occurs throughout the entire specimen, especially at higher temperatures such as 800 °C.) Figure 5(b) Heatmap of temperature distribution in CFBB_CP for 1-hour heating following ISO834 (maximum up to 800 °C). The concentric appearance arises from geometric centering and uniform boundary heating, not from any radial symmetry assumption. Figure 5(c) Heatmap of thermal stresses in CFBB_CP.
