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| TECHNICAL INFORMATION |
VALUE/ RESULT |
TEST METHOD
(BRITISH STANDARD)
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| WATER ABSORPTION, WEIGHT % |
0.23 |
BS 680 PT2 |
| WETTING & DRYING TEST |
NO SIGNS OF DELAMINATION/SPLITTING ALONG THE EDGES WHEN EXAMINED THROUGH A LENS, NOR OF FLAKING OF THE SURFACE |
BS 680 PT2 |
| SULPHURIC ACID IMMERSION TEST |
NO SIGNS OF DELAMINATION ALONG THE EDGES WHEN EXAMINED THROUGH A LENS, NOR OF SWELLING OR SOFTENING OR FLAKING OF THE SURFACE AND NO GASEOUS EVOLUTION DURING IMMERSION |
BS 680 PT2 |
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| TECHNICAL INFORMATION |
VALUE |
ASTM/ INDIAN STANDARDS |
| WATER ABSORPTION, % BY WEIGHT |
0.26 |
C-97 |
| DENSITY (BULK SPECIFIC GRAVITY) |
2.67 |
C-97 |
| MODULUS OF RUPTURE, N/ MM2 |
DRY |
PARALLEL TO RIFT |
39 |
C-99 GUIDELINES |
| PERPENDICULAR TO RIFT |
30 |
C-99 |
| WET |
PARALLEL TO RIFT |
28 |
C-99 GUIDELINES |
| PERPENDICULAR TO RIFT |
32 |
C-99 |
| COMPRESSIVE STRENGTH N/ MM2 |
DRY |
PARALLEL TO RIFT |
172 |
C-170 |
| PERPENDICULAR TO RIFT |
92 |
| WET |
PARALLEL TO RIFT |
126 |
| PERPENDICULAR TO RIFT |
70 |
| ABRASION (RESISTANCE TO WEAR) |
Average wear, mm |
2.2 |
IS 1237 Guidelines |
| MAX. WEAR ON INDIVIDUAL SPECIMEN, MM |
2.5 |
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| TECHNICAL INFORMATION |
VALUE |
ASTM/ INDIAN STANDARDS |
| WATER ABSORPTION, % BY WEIGHT |
0.23 |
C-97 |
| DENSITY (BULK SPECIFIC GRAVITY) |
2.69 |
C-97 |
| MODULUS OF RUPTURE, N/ MM2 |
DRY |
PARALLEL TO RIFT |
44 |
C-99 GUIDELINES |
| PERPENDICULAR TO RIFT |
40 |
C-99 |
| WET |
PARALLEL TO RIFT |
37 |
C-99 GUIDELINES |
| PERPENDICULAR TO RIFT |
33 |
C-99 |
| COMPRESSIVE STRENGTH N/ MM2 |
DRY |
PARALLEL TO RIFT |
88 |
C-170 |
| PERPENDICULAR TO RIFT |
96 |
| WET |
PARALLEL TO RIFT |
79 |
| PERPENDICULAR TO RIFT |
86 |
| ABRASION (RESISTANCE TO WEAR) |
Average wear, mm |
3.3 |
IS 1237 Guidelines |
| MAX. WEAR ON INDIVIDUAL SPECIMEN, MM |
3.5 |
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