1.91

C-97

Density (Bulk specific gravity)

2.44

C-97

Modulus of rupture, N/ mm² 

Dry

Parallel to rift

19

C-99 Guidelines

Perpendicular to rift

19

C-99

Wet

Parallel to rift

13

C-99 Guidelines

Perpendicular to rift

18

C-99

Compressive Strength N/ mm²

Dry

Parallel to rift

138

C-170

Perpendicular to rift

117

Wet

Parallel to rift

104

Perpendicular to rift

62

Abrasion (Resistance to wear)

Average wear, mm

2.8

IS 1237 Guidelines

Max. wear on individual  Specimen, mm

3.0