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

Table 10

Various regression models used to estimate the compressive strength of PFRC from postinstalled pull-out forces.

Regression models	Equations		(%)	(%)	(%)
Linear		0.9688	4.06	4.85	4.67
Exponential		0.9640	4.30	5.18	5.06
Power		0.9681	4.10	4.86	4.69