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issue time:2006-06-22 12:33
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Colors for Indiana Limestone Specification
This limestone colors represent a spectrum from the warmest Buff to the coolest Gray, and include the unique Silver Buff TM - a very light colored limestone with a tone slightly cooler than the warmest buff limestone. All colors are available in all grades.
Empire/PM&B Buff: Timeless buff color ranging from brown tinted buff to a light cream shade, with traditional grain structure and foreground movement.
Empire/PM&B Silver Buff: Timeless buff color in the background with subtle silver colored movement in the foreground, and with traditional Indiana Limestone grain structure.
Empire/PM&B Gray: Traditional limestone material with color ranging from a typical blue-gray to a warm gray and the classic Indiana Limestone grain structure.
Empire/PM&B Full Color Blend: A blend of both the Empire/PM&B Buff and Gray colors with the same grain structures. When choosing the full color blend material, individual finished stones may be all buff, gray or two-tone with the project having a pleasing balance of each.
Crown Buff: A brighter buff color with subtle foreground movement which is distinctively consistent, and with the classic tight grain structure inherent to the Crown Quarry.
Crown Silver BuffTM: A bright buff color in the background with the distinctive silver ribbon in the foreground, thus the name 鈥淪ilver Buff鈥�. This material possesses that classic tight grain structure inherent to the Crown Quarry.
Crown Gray: A light gray color with darker foreground movement and the classic Crown Quarry tight grain structure.
Crown Shadow Buff: A subtle combination of the Crown Buff and Silver Buff colors. This limestone has that same tight grain structure inherent to all the Crown Quarry stone.
Crown Full Color Blend: A blend of both the Crown Buff and Gray colors with the same grain structures. When choosing the full color blend material, individual finished stones may be all buff, gray or two-tone with the project having a pleasing balance of each.
PROPERTY------------------------VALUE RANGE
Bulk Specific Gravity------2.1 minimum to 2.75 maximum
Coefficient of Thermal Expansion -------0000024in/in/º to .0000030in/in/º
Modulus of Elasticity ------3,300,000 psi min. to 5,400,000 psi max.
Ultimate Shear Strength ------900 psi min. to 1,800 psi max.
Ultimate Tensile Strength --------300 psi min. to 715 psi max.
Thermal Conductivity (k) --------6.5 B.T.U./hr./ft.2/º/in.
Weight --------144 lbs./cubic foot
Fire Endurance - 4" Thick Stone -------1 hr. 12 min. plus hose stream (ASTM-E119)
Light Reflection (Interior Use)------- 50-55%
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