Interfacial Shear Behavior of Composite Concrete Substrate to High-Performance Concrete Overly After Exposure to Elevated Temperature

International Journal of Concrete Structures and Materials

Table 9 Predicted interfacial shear properties

Parameters	Experimental		Finite element		Prediction
Parameters	\({\tau }_{Exp}\)(MPa)	\({K}_{Exp}\)(N/mm³)	\({\tau }_{FE}\)(MPa)	\({K}_{FE}\)(N/mm³)	\({K}_{FE}/{K}_{Exp}\)	\({\tau }_{FE}/{\tau }_{Exp}\)
FSP-N₂₅	3	14.90	3.05	13.65	0.92	1.01
FSP-N₂₀₀	2.9	11.56	2.85	11.54	0.99	0.98
FSP-N₄₀₀	2.68	10.68	2.77	9.89	0.93	1.03
FSP-N₆₀₀	2.44	8.91	2.33	8.63	0.97	0.95
FSP-N_30min	2.68	12.25	2.91	13.18	1.07	1.01
FSP-N_60min	2.74	11.58	2.65	10.6	0.91	0.97
FSP-N_90min	2.45	8.91	2.33	8.63	0.96	0.95
FSP-N_120min	1.4	5.88	1.33	5.52	0.94	0.95