Table 5 Constraints for model verification.

From: Enhancing performance and sustainability of GGBFS-based self-compacting geopolymer concrete blended with coal bottom ash and metakaolin by using RSM modelling

Model Validation Constraints

SFT

VFT

TFT

CS

STS

FS

WPD

SAT

Std. Dev

5.30

0.068

0.12

0.57

0.074

0.050

0.23

6.712E−003

Mean

626.56

11.76

4.97

55.11

5.32

5.70

15.13

0.086

C.V.%

0.85

0.58

2.41

1.03

1.39

0.88

1.50

7.79

PRESS

908.91

0.11

0.32

16.15

0.15

0.067

1.57

1.713E−003

-2 Log Likelihood

91.27

-47.97

-30.04

19.76

-45.48

-57.81

-9.52

−122.24

R-Squared

0.9953

0.9985

0.9925

0.9765

0.9320

0.9785

0.9983

0.8882

Adj R-Squared

0.9929

0.9977

0.9887

0.9647

0.8980

0.9678

0.9975

0.8323

Pred R-Squared

0.9848

0.9963

0.9834

0.8820

0.8142

0.9433

0.9949

0.5748

Adeq Precision

60.195

112.029

47.281

22.786

14.824

25.693

98.784

12.182

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