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Portland Stone - Decorative Stonework / Ornate Carving - Natural Limestone Carving

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Bowers Basebed

Albion Stone plc Variant:
Produktcertifieringar:
  • EPD

    EPD

    Certifikattyp

Portland stone for decorative stonework/ ornate carving.

Hoppa till:
+44 (0)1737 771772 Webbplats

Applikation

Suitable for decorative stonework/ ornate carving and masonry units greater than 80 mm thick.

Beskrivning

The stone is extracted from one of the largest mines on Portland and although there is no colour variation in the basic matrix of the stone, the shell content and texture of each bed will reflect the light differently, creating the eight variations of the stone. All beds of Portland Stone are suitable for carving, however, tighter stones such as the Basebed are particularly suitable for intricate carving.


Bowers Roach:

Contains large grey shell fragments that include Turreted Gastropods (Portland screws), as well as large clam shells. It has a large number of holes scattered throughout due to the removal of fossil shells by percolating rain.


Bowers Basebed:

Clean basebed that may contain small grey shell fragments that are randomly distributed across the stone.


Grove Whitbed:

Predominantly grey shells with some large white shell fragments, mainly large thin clams up to 100 mm long laid parallel to the bedding. Some banding is evident in larger slabs.


Fancy Beach Whitbed:

A moderately high shell content, which are predominantly grey. There are small voids throughout the slab and the texture varies.


Heritage Portland Stone:

The shells are randomly distributed across the stone, with some areas of low shell content and some areas of high shell content. Varied texture is evident across the slab.


Jordans Whitbed:

A medium shell content, mainly large, thin clams up to 80 mm long laid parallel to the bedding. The stone mellows over time to grey/ white due to grey and white fragments.


Jordans Basebed:

Fine grain Portland stone containing small grey shell fragments evenly distributed across the stone.


Ostrea Patch Reef Whitbed:

The shells are randomly distributed throughout the stone, including many large grey and white oyster shell fragments. It is typically coarse with some vuggy patches.


Stonehills Whitbed:

The stone has a low to medium shell content that are predominantly grey with some white fragments that are randomly distributed across the stone. Banding is evident, particularly in larger slabs.


Features and benefits:

  • Creamy/ white in colour.
  • Masonry units (>80 mm) manufactured in natural stone.
  • Intricate designs.
  • Uses the UK's most environmentally friendly techniques.
  • From the Jordans/ Bowers mine and Stonehills mine on the Isle of Portland.
  • Regularly assessed and accredited by the completely independent British Standards Institute.
  • CE marked.

Allmän information

Färg

Cream

White

Grey

Tillverkarens vägledning

Creamy/ white is typical Portland colour with grey shell included.

ytbehandling

Honed

Material

Limestone

Form

Circle

Oval

Triangle

Square

Rectangle

Rhombus

Trapezoid

Kite

Parallelogram

Pentagon

Hexagon

Octagon

Crescent

Formless

Other

Visa mer

Längd

Bespoke

Bredd

Bespoke

Höjd

Bespoke

Uniclass

Pr_20_93_52_56 Naturligt huggen stenPrimär

CAWS

F21/110 Ashlar

F21/110 Ashlar

Specifikationsdata - Naturligt huggen sten

Klassificeringsdata

Standard

To BS EN 771-6.

Denomination

-

Name (traditional)

Portland stone.

Petrological family

Limestone.

Vägledning för specifikationsalternativ:

Fine to medium oolitic and bioclastic limestone containing bioclasts (5 µm in width by 20 µm in length).

Colour

Creamy white.

Tillverkarens vägledning

Creamy/ white is typical Portland colour. The content of grey shell can vary the overall colour depending on the density of included shell.

Origin

Bowers Quarry, Isle of Portland, UK.

Unit dimension tolerances

Category D2.

Compressive strength

-

Mean value (minimum)

To BS EN 1926, 54.99 MPa.

Open porosity

To BS EN 1936, 17.58%.

Vägledning för specifikationsalternativ:

Lowest expected value 12.70%, highest expected value 15.39%.

Tillverkarens vägledning

Average values.

Additional requirements

-

Apparent density

To BS EN 1936, 2226 kg/m³.

Vägledning för specifikationsalternativ:

Lowest expected value 2123 kg/m³, highest expected value 2331 kg/m³.

Tillverkarens vägledning

Average value.

Mean flexural strength

To BS EN 13161, 7.95 MPa.

Saturation coefficient

To BS EN 12370, 0.76.

Vägledning för specifikationsalternativ:

Lowest expected value 0.67, highest expected value 0.85.

Tillverkarens vägledning

Average value.

Light reflectance

62.20 (mean value).

Vägledning för specifikationsalternativ:

Value from Jordans Basebed test, however these stones are very similar.

Tillverkarens vägledning

Light reflectance tested using NCL Colour Scan instrument - Grit 60.

Breaking load

To BS EN 13364, 4601 N.

Vägledning för specifikationsalternativ:

Lowest expected value 3492 N, highest expected value 5949 N.

Tillverkarens vägledning

Breaking load at dowel hole (at 75 mm thick). Average value.

Water absorption (maximum)

To BS EN 13755, 5.52%.

Vägledning för specifikationsalternativ:

Lowest expected value 3.40%, highest expected value 8.40%.

Tillverkarens vägledning

Average value.

Hållbarhetsdata

Tydlighet för koldioxidsnål design

NBS LCA hjälper byggproffs att mäta miljöpåverkan och identifiera produkter med låga koldioxidutsläpp för mer hållbara projekt.

Utforska NBS LCA
LCA-illustration

Innehåller Red List-material

No

Materialets ursprungsland

United Kingdom

Produktens tillverkningsland

United Kingdom

Material

Limestone
Carbon dioxide equivalent

Koldioxidekvivalent, enligt definition i BS EN 15804

Certifierad

Steg
Normaliserad enhet (kg CO₂ eq/kg)
Deklarerad enhet (kg CO₂ eq/kg)
Steg:A1–A3 (”Produktionsskede”)
Normaliserad enhet :0.04 (kg CO₂ eq/kg)
Deklarerad enhet :0.04

Återvinningsbarhet

100

Återvunnet innehåll

0 %

Produktcertifieringar

Produktcertifieringar

EPD

EPD

Albion Stone EPD

Dokumentation

TDS - Jordans Whitbed

TDS - Jordans Whitbed

TDS - Jordans Roach

TDS - Jordans Roach

TDS - Jordans Basebed

TDS - Jordans Basebed

TDS - Grove Whitbed

TDS - Grove Whitbed

TDS - Fancy Beach Whitbed

TDS - Fancy Beach Whitbed

TDS - Bowers Whitbed

TDS - Bowers Whitbed

TDS - Bowers Roach

TDS - Bowers Roach

TDS - Bowers Basebed

TDS - Bowers Basebed

CE - Masonry Units - Jordans Whitbed

CE - Masonry Units - Jordans Whitbed

CE - Masonry Units - Jordans Roach

CE - Masonry Units - Jordans Roach

CE - Masonry Units - Jordans Basebed

CE - Masonry Units - Jordans Basebed

CE - Masonry Units - Grove Whitbed

CE - Masonry Units - Grove Whitbed

CE - Masonry Units - Fancy Beach Whitbed

CE - Masonry Units - Fancy Beach Whitbed

CE - Masonry Units - Bowers Roach

CE - Masonry Units - Bowers Roach

CE - Masonry Units - Bowers Basebed

CE - Masonry Units - Bowers Basebed

Heritage Portland Stone Datasheet

Heritage Portland Stone Datasheet

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