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Journal of Engineering and Applied Science

Table 3 RSM-CCD experiment design matrix and responses

From: Optimizing biochar-based geopolymer composites for enhanced water resistance in asphalt mixes: an experimental, microstructural, and multi-objective analysis

Run

Input factors

Responses

Asphalt binder (%)

BCG (%)

BUW

VTM (%)

VFB (%)

VMA (%)

Stability (kN)

Flow (mm)

ITS (kPa)

ITSR (%)

1

5

2

2.443

4.28

74.36

16.02

14.47

3.03

1433

93.53

2

5

2

2.445

4.37

74.21

16.06

14.53

2.94

1429

90.69

3

4

4

2.448

4.02

90.88

16.54

15.19

2.81

1246

78.33

4

4

2

2.436

4.95

66.75

17.16

13.75

2.82

1376

87.13

5

5

2

2.438

4.52

76.27

15.98

14.37

2.97

1413

89.53

6

4

0

2.411

5.11

60.71

17.38

13.98

2.85

1114

64.43

7

6

2

2.429

4.13

81.55

17.24

13.71

3.21

1143

71.48

8

5

2

2.441

4.41

79.21

16.15

14.43

3.01

1457

92.82

9

6

4

2.415

3.01

90.94

16.47

15.06

3.12

996

58.84

10

5

0

2.421

4.59

72.03

16.23

14.36

3.03

1207

72.32

11

5

2

2.442

4.41

74.31

15.96

14.31

2.99

1471

90.92

12

6

0

2.419

4.88

80.09

17.61

13.62

3.27

989

63.32

13

5

4

2.441

3.15

94.96

15.58

15.57

2.91

1246

78.29

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