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Indiana Limestone
 

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Indiana Limestone has been a participant in every style of American architecture since the early 19th Century. Materials come and go, but Indiana's Limestone continuing success story is very nearly inique.

Key Benefits

bulletRemarkable resistance to deterioration and weathering
bulletIt is a "freestone", showing the same strength in all directions
bulletEven color and texture
bulletModerate price

Chemical Analysis

The average analysis as developed by carefully prepared composite samples is given below.

Carbonate of Lime        97.39
Carbonate of Magnesia          1.20
Silica            .69
Alumina            .44
Iron Oxide            .18
Water and Loss            .10
Total     100.00

Strengths

For a natural material, Indiana Limestone shows remarkably little variation in strengths from quarry to quarry. This stone is more predictable than many stone of higher, but erratic, strength.

Property Value Test Procedure
Ultimate compressive strength dry specimens

4,000 psi minimum

(see note a)

 ASTM C170
Modulus of rupture dry specimens 700 psi minimum

(see note a)

 ASTM C99
Absorption 7.5% maximum

(see note b)

 ASTM C97

Note a: Most Indiana Limestone production possesses values higher than these minimums, which are listed for engineering reference. For calculating windload and other bending forces, ILI uses 1000 psi as it modulus of rupture basis.

Note b: Most production possesses lower values than this maximum

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