Revised Rebound Hammer and Pull-Out Test Strength Curves for Fiber-Reinforced Concrete

Table 3

Experimental scheme showing the number of specimens tested for each type of test and concrete strength grade.

Group	PFRC (number)				CFRC (number)				HFRC (number)
		R	S	C		R	S	C		R	S	C
C25	6	20	20	20	6	20	20	20	6	20	20	20
C30	6	20	20	20	6	20	20	20	6	20	20	20
C35	6	20	20	20	6	20	20	20	6	20	20	20
C40	6	20	20	20	6	20	20	20	6	20	20	20
C45	6	20	20	20	6	20	20	20	6	20	20	20
C50	6	20	20	20	6	20	20	20	6	20	20	20

 = postinstalled pull-out test; R = rebound hammer test; S = standard cube compressive strength test; C = carbonation test.