Catcastle Buff Sandstone is a type of sandstone characterized by its medium-grained texture and buff, grey, or variegated coloration. It is extracted from quarries near Blackburn in Lancashire, England. The buff gritstone variety of this sandstone has been quarried since the early 1940s, indicating a long history of use and reliability. Sandstone is a sedimentary rock composed of sand-sized minerals or rock grains, typically quartz, cemented together by silica, calcite, or iron oxide. Its durability, aesthetic appeal, and ease of working have made it a popular choice for construction and landscaping purposes. The medium-grained texture of Catcastle Buff Sandstone suggests that it has a balanced composition of sand-sized grains, providing both strength and workability for various applications. The buff, grey, or variegated coloration adds visual interest and versatility, making it suitable for a wide range of architectural and decorative projects.

DECLARATION OF PERFORMANCE

To BS EN 771-6-2011 Natural Stone Masonry Units

Resistance to Fire...Class A1

Shear Bond Strength...Fixed Value

Apparent Density ...(Kg/m³)2386

Open Porosity ...(%)NPD

Water Absorpotion... (g/m.sec²)41.6

Compressive Strength... (Mpa)38.5

Flexural Strength ...(Mpa)11.6

Frost Resistance ...(Cycles)84

Thermal Conductivity...NPD