Grey - Limestone
Quarry Location: Monroe County, southern Indiana
Water Absorption: 7.5 %
Density: 2275 kg/m³
Compressive Strength: 27.58 MPa
Recommended Usage: Building stone,countertops, sinks, monuments, pool coping, sills, ornamental stone, interior, exterr
Finishing Surface: Honed, Aged, Polished, Sawn Cut, Sanded, Rockfaced, Sandblasted, Bushhammered, Tumbled
Additional Names: Indiana Grey,Indiana Limestone,Indiana Buff Limestone,Indiana Gray Limestone
chemical analysis
The average analysis as developed by carefully prepared
composite samples is given below.
BUFF -- GRAY
Carbonate of Lime 97.39 -- 97.07
Carbonate of Magnesia 1.20-- 1.20
Silica .69 --.80
Alumina .44 --.68
Iron Oxide .18 --.12
Water and Loss .10 --.13
100.00 --100.00
PROPERTY VALUE TEST PROCEDURE
Ultimate compressive strength 4,000 psi minimum ASTM C170
dry specimens (see note a)
Modulus of rupture 700 psi minimum ASTM C99
dry specimens (see note a)
Absorption 71/2% maximum ASTM C97