Dunhouse Blue

Grey - Sandstone

United KingdomUnited Kingdom
Item Details

Quarry Location: Lancashire

Water Absorption: 2.9 % by wt

Density: 2357 - 2523 Kg/m3

Flexural Strength: 15.7 - 16.3 MPa

Compressive Strength: 110.24 - 137.8 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: Dunhouse Grey Buff Sandstone,Dunhouse Grey, Dunhouse Blue Sandstone,Dunhouse Blue

Description:
Dunhouse Blue Sandstone is a very fine grain non-clacareous, slightly micaceous, bluish- grey and is extremely durable due to its high strength and low porosity. Geologically it is classified as a meso-micro crystalline arenite from from the Millstone Grit of Carboniferous age.
Finishes available:Sawn Cut, Sanded, Rockfaced, Sandblasted, Bushhammered, Tumbled, Thermalled, Natural Cleft, Weatheredge
Dunhouse Blue Sandstone can be commonly used; Exterior - Interior wall and floor applications, fountains, pool and wall capping, stairs, paving.

Test Results Dunhouse Grey
Safety in Use
Slip Resistance (Note 1)
83
Wet Values > 40 are considered safe.
Abrasion Resistance (Note 1)
Not Tested
Values <23.0 are considered suitable for use in heavily trafficked areas
Strength under load
1) Compression(Note 2)
137.8 MPa
Loaded perpendicular to the bedding plane ambient humidity
2) Bending (Note 1)
17.1 MPa
Loaded perpendicular to the bedding plane ambient humidity
Not Tested
Loaded perpendicular to the bedding plane ambient humidity
Porosity and Water Absorption
1) Porosity (Note 3)
11.7%
2) Saturation Coefficient (Note 3)
0.59
3) Water Absorption
2.9 % (by wt)
4) Bulk specific gravity
2357 kg/m3
Resistance to Frost
Flexural strength after Freeze/Thaw Test (Note 1)
16.3 MPa
Loaded perpendicular to the bedding plane ambient humidity
Resistance to Salt
Sodium Sulphate Crystallisation Test (Note 3)
-1.38% Mean wt loss
Resistance to Acidity
Acid Immersion Test(Note 4)
Pass
(Test methods Note 1 = EN1341, Note 2 = EN 1342, Note 3 = EN 1341 /BRE 141, Note 4 = BRE 141)

FAQ
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Can United Kingdom's Dunhouse Blue Sandstone be used in a kitchen?
Yes, Dunhouse Blue Sandstone can be used in a kitchen. Sandstone is a durable and versatile natural stone that is commonly used in kitchen countertops, backsplashes, and flooring. However, it is important to note that sandstone is a porous material, which means it can absorb liquids and stains if not properly sealed. Therefore, it is recommended to seal the Dunhouse Blue Sandstone before use in a kitchen to protect it from potential stains and spills. Additionally, regular maintenance and cleaning with suitable stone cleaners are essential to preserve its appearance and durability.
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Are there color variations of United Kingdom's Dunhouse Blue Sandstone?
Yes, there are color variations of United Kingdoms Dunhouse Blue Sandstone. While the primary color is blue, variations can range from light to dark shades and may include hints of grey, green, and brown. The specific color variations can be influenced by factors such as the specific quarry location and the natural mineral composition of the stone.
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What grade is United Kingdom's Dunhouse Blue Sandstone?
The United Kingdoms Dunhouse Blue Sandstone is typically classified as an A-grade sandstone.
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What is the coefficient of friction of Filled United Kingdom's Dunhouse Blue Sandstone tiles?
The coefficient of friction of a specific type of tile, such as Filled United Kingdoms Dunhouse Blue Sandstone tiles, is not readily available without specific testing or technical documentation from the manufacturer or supplier. The coefficient of friction can vary depending on various factors such as surface finish, texture, and specific treatment of the tile. It is recommended to contact the manufacturer or supplier of these tiles for accurate information on their coefficient of friction.
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How thick is United Kingdom's Dunhouse Blue Sandstone slabs?
The thickness of Dunhouse Blue Sandstone slabs in the United Kingdom can vary depending on the specific project or customer requirements. However, commonly available thicknesses range from 20mm (0.8 inches) to 50mm (2 inches) or more. It is recommended to contact a supplier or manufacturer directly to inquire about the specific thickness options available.
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Can United Kingdom's Dunhouse Blue Sandstone be used in landscaping?
Yes, Dunhouse Blue Sandstone from the United Kingdom can be used in landscaping. Blue sandstone is a popular choice for various landscaping projects due to its unique blue-grey color and natural texture. It can be used for various applications such as paving, walling, steps, garden features, and decorative elements. It is a durable and versatile stone that can add a touch of elegance and beauty to any landscape design.
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Is United Kingdom's Dunhouse Blue Sandstone an expensive stone?
I do not have access to current pricing information. However, Dunhouse Blue Sandstone is considered a premium building material and is known for its durability and unique color variations, which may translate into higher costs compared to other types of sandstone or building materials. Factors like extraction, transportation, and processing costs also affect its overall price.
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Can United Kingdom's Dunhouse Blue Sandstone be used exterior applications in very humid climates?
United Kingdoms Dunhouse Blue Sandstone can be used in exterior applications in humid climates, but certain precautions should be taken. Sandstone is a natural stone material that is generally durable and weather-resistant. However, in very humid climates, there are a few factors to consider: 1. Porosity: Sandstone is a porous material, meaning it can absorb moisture. In high-humidity environments, the stone may trap moisture, leading to issues such as mold, mildew, or efflorescence (white mineral deposits). To mitigate these issues, it is recommended to apply a good-quality sealer on the sandstone surface to reduce moisture absorption. 2. Salt damage: In coastal areas with high humidity and saltwater exposure, sandstone may be susceptible to salt damage. Salt can cause the stone to deteriorate and, over time, weaken its structural integrity. It is important to choose a sealer specifically designed to protect against salt damage or consider using an alternative stone material. 3. Maintenance: Regular cleaning and maintenance are essential in humid climates to prevent the build-up of dirt, algae, or other organic matters. These can quickly deteriorate the appearance and integrity of the sandstone. Regularly clean the sandstone using a mild detergent or stone cleaner and employ proper maintenance practices recommended by the stone supplier. Overall, while Dunhouse Blue Sandstone can be used in humid climates, it is essential to properly maintain and protect the stone to ensure its longevity and aesthetics. Consider consulting with a professional stone supplier or installer for specific advice related to your climate and application needs.