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

Table 7

Model equations used to estimate the relationship between CFRC compressive strength and RN.

Regression models	Equations	(%)	(%)
JGJ/T 23-2011		5.3	6.3	0.8870
Linear		6.1	7.4	0.8543
Exponential		6.1	7.3	0.8507
Second-order polynomial		6.1	7.3	0.8546
Power		6.1	7.2	0.8514