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Application

  • Suitable for load-bearing and non-load-bearing use.
  • Suitable for general walling projects, given correct structural design in accordance with BS EN 1996 - Design of masonry structures.

Description

Cromwell walling from Marshalls provides the appearance of natural stone walling at an affordable price. Using Yorkstone aggregates quarried from the same natural sources as those used for natural stone walling to closely replicate the visual and textured characteristics of natural stone.


Features and benefits:

  • The hydraulic press manufacturing process results in low water absorption, ensuring the high-quality appearance is maintained over a long-term period.
  • The pressing process also delivers dimensional accuracy for time savings on site, while still achieving the visual impact of random and variably sized natural stone walling.
  • Available in three distinct styles – Pitched Face, Split Face or Rustic.
  • Rough effect, with each block displaying a distinctive raised centre.
  • Hydraulically pressed concrete.
  • Manufactured in accordance to BS EN 771-5 : 2011 + A1 : 2015.

General information

Color

Yellow

Grey

Beige

Material

Concrete

Shape

Rectangle

Length

220 mm

300 mm

365 mm

440 mm

Width

100 mm

Height

65 mm

140 mm

215 mm

Uniclass

Pr_20_93_52_50 Manufactured stone blocksPrimary

CAWS

F10/295 Manufactured stone blockwork

F10/25 Manufactured stone blockwork

Specification data - Manufactured stone blocks

Standard

To BS EN 771-5.

Block description

Facing block.

Appearance

Match existing.

Finish

Pitched face.

Pitched Face Walling has a rough effect, with each block displaying a distinctive raised centre.

Split face.

Split Face Walling is perfect for applications where a flatter, less prominent texture than a pitched face is required.

Rustic.

Rustic Walling gives finished walling a rounded, softer and less defined finish.

Colour

York stone.

Ash.

Brown.

Weathered.

Configuration

-

Form

Homogeneous.

Bed face voids

None.

Compressive strength (minimum)

-

Mean value

20 N/mm².

Characteristic value

17.5 N/mm² minimum.

Freeze/ thaw resistance

Frost-resistant.

Thermal conductivity

1.27 W/mK (@50%); 1.52 W/mK (@90%).

Work sizes (length x width x height)

220 x 100 x 65 mm.

220 x 100 x 140 mm.

300 x 100 x 65 mm.

300 x 100 x 140 mm.

300 x 100 x 215 mm.

365 x 100 x 140 mm.

440 x 100 x 65 mm.

440 x 100 x 140 mm.

Tolerance category

D1.

Length: +3 -5 mm.

Width: +3 -5 mm.

Height: +3 -5 mm.

Gross dry density

2300 kg/m³.

Reaction to fire

Class A1 to BS EN 13501-1.

Water absorption by capillarity

Not greater than 3 g/m²s.

Water vapour permeability

30/10 μ.

Bond strength

0.15 N/mm².

Dimensional stability

0.89 mm/m.

Sustainability data

Contains Red List materials

No

Country of product manufacture

United Kingdom

Recyclability

Recyclable at end of lifecycle

Literature

Cromwell Walling Stone

Cromwell Walling Stone

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