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 6 Failure pattern for different composite push-off specimens

No	Specimen ID	Specimen type	Mix ID	Failure pattern
1	N25	One unit	NSC	–
2	N		NSC	–
3	FSP25		FAC-(SF + PP)	–
4	FSP		FAC-(SF + PP)	–
5	N-N₂₅	Composite	NC/NC	Mixed failure B
6	N-N₂₀₀		NC/NC	Mixed failure B
7	N-N₄₀₀			Mixed failure B
8	N-N₆₀₀			Mixed failure B
9	H-N₂₅		HSC/NC	Fracture of NSC
10	H-N₆₀₀		HSC/NC	Fracture of NSC
11	F-N₂₅		FAC/NC	Mixed failure B
12	F-N₆₀₀		FAC/NC	Fracture of NSC
13	FS-N₂₅		FAC/NC	Fracture of NSC
14	FS-N₆₀₀		FAC/NC	Fracture of NSC
15	FP-N₂₅		FAC/NC	Fracture of NSC
16	FP-N₆₀₀		FAC/NC	Mixed failure A
17	FSP-N₂₅		FAC-(SF + PP) /NC	Fracture of NSC
18	FSP -N₂₀₀		FAC-(SF + PP) /NC	Fracture of NSC
19	FSP -N₄₀₀			Fracture of NSC
20	FSP -N₆₀₀			Fracture of NSC
21	FSP –N_30min		FAC-(SF + PP) /NC	Fracture of NSC
22	FSP –N_60min			Fracture of NSC
23	FSP –N_90min			Fracture of NSC
24	FSP –N₁₂₀			Mixed failure B
25	FSP –N₁₈₀			Spalling