Age of hydration (days)

Compressive strength, (MPa)

Combined water content, (Cw, %)

Free lime content, (CaO, %)

OPC

OPC-MK10

Increase,%

OPC

OPC-MK10

Increase,%

OPC

OPC-MK10

Decrease,%

1

31.70

33.10

4.42

7.80

10.65

36.54

4.27

4.07

4.68

3

65.20

86.40

32.52

13.50

15.60

15.55

5.15

4.27

17.09

7

72.60

101.20

39.39

16.10

16.40

1.86

5.42

4.23

21.96

14

82.00

112.00

36.59

16.25

16.56

1.90

5.61

4.19

25.31

28

101.30

122.00

20.43

16.48

16.79

1.91

5.96

4.11

31.04