Multifractal Analysis and Compressive Strength Prediction for Concrete through Acoustic Emission Parameters

Table 2

Multifractal values for r, Δα, and α₀.

	Crack closure	Stable crack propagation	Unstable crack propagation
r	2.59	1.74	1.57
Δα	1.04	0.89	0.86
α0	2.47	2.61	2.80