COTTAER SANDSTONE -Bh/g-

COTTAER SANDSTONE -Bh/g- (sculpture material yellow) is an extremely fine-grained and in quality specially selected Elbe sandstone in yellow color. It is dense, as far as possible without defects or inclusions and of pure color. However, banded or clouded material structures can also be supplied if required. Here, too, the wavy clay skins embedded in the stratification give the material its typical marbled structure.

COTTAER SANDSTONE -Bh/g- is frost and weather resistant and because of its good workability, marbled structure, density and purity it is used especially for demanding and high quality stonemasonry and sculpture works.

Trade name: COTTAER SANDSTONE
Petrographic family: Sedimentary rock
Petrographic name: Sandstone / Elbsandstone / Quartzarenite
Geological age: Cretaceous / Lower Turonian / Labiatussandstein
Origin: Germany / Saxony / Cotta

Bulk density (according to DIN EN 1936): Mean value 2,040 kg/m³
Compressive strength (according to DIN EN 1926): Mean value 55 Mpa (perpendicular to the anisotropy plane)
Flexural strength (according to DIN EN 12372): Mean value 5.8 Mpa (perpendicular to the plane of anisotropy)
Water absorption (according to DIN EN 13755): Mean value 6.8 % (under atmospheric pressure)
Anchor failure (according to DIN EN 13364): Mean value > 1,400 N (type IIa, d = 50 mm)
Open porosity (according to DIN EN 1936): Mean value 22.6
Frost resistance (according to DIN EN 12371): yes, scale "0" (mean value mass loss 0.01 %, after 56 freeze-thaw cycles)