Pink - Sandstone
Quarry Location: north of Birchover between Stanton-in-Peak and Birchover village, Dungeon Quarry, Derbyshire
Water Absorption: 3.6 - 4.3 %
Density: 2250 - 2296 kg/m³
Compressive Strength: 60-73.6 MPa
Recommended Usage: Exterior - Interior wall and floor applications, fountains, pool and wall capping, stairs, paving
Finishing Surface: Sawn Cut, Sanded, Rockfaced, Sandblasted, Bushhammered, Tumbled, Thermalled, Natural Cleft, Weatheredge
Additional Names: Birchover Sandstone,Dungeon Sandstone,Birchover Pink, Birchover Gritstone Sandstone,Birchover Gritstone
Birchover Gritstone Sandstone can be commonly used; Exterior - Interior wall and floor applications, fountains, pool and wall capping, stairs, paving.
Test Results Birchover Gritstone
Safety in Use
Slip Resistance (Note 1)
Wet: 75
Values > 40 are considered safe.
Abrasion Resistance (Note 1)
22.1
Values <23.0 are considered suitable for use in heavily trafficked areas
Strength under load
1) Compression(Note 2)
73.6 MPa
Loaded perpendicular to the bedding plane ambient humidity
2) Bending (Note 1)
8.9 MPa
Loaded perpendicular to the bedding plane ambient humidity
Porosity and Water Absorption
1) Porosity (Note 3)
13.1 – 15.3%
2) Saturation Coefficient (Note 3)
(0.63 – 0.65 range)
3) Water Absorption
3.6 % (by wt)
4) Bulk specific gravity
2296 kg/m3
Resistance to Frost
Flexural strength after Freeze/Thaw Test (Note 1)
Not Determined
Loaded perpendicular to the bedding plane ambient humidity
Resistance to Salt
Sodium Sulphate Crystallisation Test (Note 3)
Mean: 100% (cubes failed) (wt loss)
Resistance to Acidity
Acid Immersion Test(Note 4)
Pass
All samples passed the test with no splitting or delamination
(Test methods Note 1 = prEN1341, Note 2 = prEN 1342, Note 3 = prEN 1341 /BRE 141, Note 4 = BRE 141)