- Ultimate compressive strength of dry specimens
Value: 4,000 psi min.* Test STD: ASTM C170
- Modulus of rupture of dry specimens
Value: 700 psi min.** Test STD: ASTM C99
- Absorption
Value: 7.5 % max. Test STD: ASTM C97
*Most Indiana Limestone products indicate min. values in excess of 4,000 psi, but this value is listed as an engineering reference.
**Windload and other bending forces are typically calculated at 1,000 psi for modulus of rapture.
NOTE: All Indiana Limestone meets or exceeds the strength requirements set forth in ASTM C-568 for Type II Dimension Limestone.
- Abrasion Resistance
When used in flooring, paving, or steps, the abrasion resistance should be specified.
- Value Range: (Abrasive Hardness)
6 min. to 17 max.† Test STD: ASTM C241
†Stone preparation and installation details are important in assuring hardness of 8 for heavy traffic areas. Specify abrasive hardness of 6 for light traffic areas such as patios, plazas and wide sidewalks.