About Berea Sandstone TM Patio
Birmingham Buff Sandstone |
| ASTM C170-87 COMPRESSIVE STRENGTH PSI |
ASTM C-99-87 MODULES OF RUPTURE |
ASTM C97-90 ABSORPTION AND BULK SPECIFIC GRAVITY |
ASTM C-241-90 ABRASION RESISTANCE OF STONE SUBJECTED TO FOOT TRAFFIC |
| Average |
Average |
Absorption |
Bulk Specific Gravity |
Abrasive Hardness Value (1.1a) |
| (PSI) 11576 |
(MPa) 79.8 |
(PSI) 1177 |
(MPa) 8.1 |
(%) 5.85 |
(kg/m3) 2153 |
9.48 |
Amherst Gray Sandstone |
| ASTM C170-87 COMPRESSIVE STRENGTH PSI |
ASTM C-99-87 MODULES OF RUPTURE |
ASTM C97-90 ABSORPTION AND BULK SPECIFIC GRAVITY |
ASTM C-241-90 ABRASION RESISTANCE OF STONE SUBJECTED TO FOOT TRAFFIC |
| Average |
Average |
Absorption |
Bulk Specific Gravity |
Abrasive Hardness Value (1.1a) |
| (PSI) 11169 |
(MPa) 70.1 |
(PSI) 772 |
(MPa) 5.28 |
(%) 6.2 |
(kg/m3) 2119 |
10.89 |
Berea Sandstone TM Facts |
| Silica |
SiO2 |
93.13% |
| Alumina |
A12O3 |
3.86% |
| Ferric Oxide |
Fe2O3 |
0.11% |
| Ferrous Oxide |
FeO |
0.54% |
| Magnesium Oxide |
MgO |
0.25% |
| Calcium Oxide |
CaO |
0.10% |
| Alkali |
Alk |
|
| Loss on Ignition |
|
1.43% |
Berea Sandstone TM is an excellent building stone due to the composition of grains of Quartz bonded by Silica. The extreme hardness of the Quartz grains in Berea Sandstone TM enables it to preserve an abrasive non-slip surface. In addition to hardness, the quartz grains of Berea Sandstone TM possess a chemical resistance to the erosive action of the acidic chemicals in the atmosphere of today's cities. The silica bond does not deteriorate with time, exposure to water, or temperature change and so prolongs the longevity of the stone.
