Table 3 Descriptive statistics of the processed data.

From: Interpretable machine learning approaches to assess the compressive strength of metakaolin blended sustainable cement mortar

 

Units

Symbol

Maximum

Minimum

Mean

Standard deviation

25%

50%

75%

Age

Days

A

90

1.0

38.3

31.82

7.0

28

60

Maximum aggregate diameter

mm

Dia

4.75

0.6

2.07

1.789

0.6

0.60

4.75

Metakaolin percentage

% w/w

MK/B

30

0

13.89

10.10

5.0

15

30

Water-to-binder ratio

W/B

0.6

0.36

0.467

0.057

0.42

0.46

0.60

Binder-to-sand ratio

B/S

0.50

0.33

0.433

0.080

0.33

0.50

0.50

Compression strength

MPa

C-S

73.10

6.06

41.78

12.117

32.05

43.40

73.1