Properties

0

10

15

20

25

30

35

40

Linear shrinkage

9.5

8.9

6.4

5.5

7.3

5.4

5.3

5.1

Volumetric shrinkage

6.78

6.70

6.40

4.20

4.10

3.88

3.62

3.91

Weight loss index

8.33

6.54

5.71

6.11

4.43

5.81

3.33

3.21

Porosity

36.6

36.9

33.3

30.2

26.3

22.9

19.2

15.6

Water absorption 24 hrs

25.2

24.5

22.1

20.7

18.4

15.8

15.8

14.4

Water absorption 5 hrs boiling

26.0

27.8

24.0

23.8

19.8

16.0

14.5

15.6

Saturation coefficient

0.97

0.88

0.92

0.87

0.93

0.99

0.99

0.87

Initial rate of water absorption

2.4

2.4

2.3

2.1

1.9

1.8

1.7

2.1

Wear depth

3.51

3.22

3.13

2.23

1.72

1.51

1.36

1.25

Bulk density

1.48

1.53

1.64

1.73

1.86

1.92

1.98

2.02

Thermal conductivity (W/mK)

0.21

0.21

0.24

0.27

0.32

0.39

0.43

0.46

Compressive strength

11.8

12.1

13.5

15.4

17.5

19.7

21.3

22.5

Flexural strength

1.84

1.95

1.96

2.64

3.30

4.32

3.72

3.35

Efflorescence (%)

42

moderate

39

moderate

40

moderate

28

moderate

33

moderate

32

moderate

15

moderate

18

moderate

Water absorption capacity coefficient (Kg/m²t^1/2)

12.3

9.4

8.7

8.5

6.5

5.3

4.4

3.5

Acid resistance test (%)

5.1

5.3

4.7

3.4

3.8

3.2

3.2

2.9