Table 9 Optimization results with their Goals.

From: Performance optimization of black cotton soil stabilized with FGD gypsum and cement via response surface methodology

Response

Goal

Lower

Upper

Solution

PI (%)

Minimum

10.90

24.12

12.03

SL (%)

Minimum

7.000

9.50

7.39

MDD (g/cc)

Maximum

1.72

1.985

1.851

OMC (%)

Minimum

16.14

20.51

17.56

UCS

Maximum

488.00

585.0

554.88

k (cm/s)

Minimum

0.00

0.00

0.0000149

CBR US

Maximum

21.100

46.50

43.68

CBR S

Maximum

16.100

33.90

32.06

C

Maximum

8.32

9.70

9.24

FGD

Maximum

3.07

3.58

3.41

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