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Advances in Civil Engineering
/
2021
/
Article
/
Tab 2
/
Research Article
Multifractal Analysis and Compressive Strength Prediction for Concrete through Acoustic Emission Parameters
Table 2
Multifractal values for
r
, Δ
α
, and
α
0
.
Crack closure
Stable crack propagation
Unstable crack propagation
r
2.59
1.74
1.57
Δ
α
1.04
0.89
0.86
α
0
2.47
2.61
2.80