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Application

Suitable for use in the construction of external and internal loadbearing and non-loadbearing walls, including the inner and outer leaves of cavity walls, party walls, partition walls and boundary walls. Can also be used as reinforced masonry walls through incorporation of bed joint reinforcement. Other applications include:

  • Plant rooms.
  • Classrooms.
  • Lecture theatres.
  • Gymnasiums.
  • Swimming pools.
  • Arenas.
  • Factories.

A 1:1:6 cement:lime:sand mortar is suitable for use with this product.

CE-marked and manufactured in accordance with BS EN 771-3, BS 5628-1, ISO 9001 and ISO 14001.

Description

Slotted face acoustic masonry blocks with enhanced acoustic properties that are achieved through the use of Helmholtz resonating chambers. They have been developed to reduce sound reverberation in both internal and external applications, promoting clarity to speech or music and reducing overall noise levels.

Manufactured from cement, porous aggregates (65% recycled secondary aggregate content), an integral waterproofing and colour pigment.

Features and benefits:

  • Cost effective solution to controlling sound reverberation.
  • Creates a quieter space.
  • Satisfies the requirements of Building Bulletin 93 (BB93).
  • Delivers a noise reduction coefficient (NRC) of: EC100: 0.55 αw; EC140: 0.75 αw; EC215: 0.65 αw.
  • Reduces reverberation time.
  • Designed to deal with difficult to control, low frequency sounds.
  • Robust and can withstand frequent impact.
  • Available in a variety of colours.
  • Can be roller painted - consult manufacturer for details.
  • Minimal maintenance required.
  • Fire-resistant and will not contribute to the spread of flame.
  • Loadbearing capacity.
  • Waterproof, and will retain a fresh, clean appearance.
  • Efflorescence-free.
  • When used to construct the internal leaf of the cavity wall of a building, this product adds to the overall airtightness, improving the thermal efficiency and contributing to the minimization of energy use.
  • Can be used in conjunction with other Colinwell products, including Acousta Tex.

Applications:

Suitable for use in the construction of external and internal loadbearing and non-loadbearing walls, including the inner and outer leaves of cavity walls, party walls, partition walls and boundary walls. Can also be used as reinforced masonry walls through incorporation of bed joint reinforcement. Other applications include:

  • Plant rooms.
  • Classrooms.
  • Lecture theatres.
  • Gymnasiums.
  • Swimming pools.
  • Arenas.
  • Factories.

A 1:1:6 cement:lime:sand mortar is suitable for use with this product.

CE-marked and manufactured in accordance with BS EN 771-3, BS 5628-1, ISO 9001 and ISO 14001.

General information
Finish

Smooth finish

Material

Cement, aggregate

Shape

Rectangular

Size

440 x 100 x 215 mm

440 x 215 x 215 mm

440 x 140 x 215 mm

Uniclass 2015
Aggregate concrete blocks (Pr_20_93_52_01)Primary
Specification data - Aggregate concrete blocks
Product Reference

Colinwell EchoCheck Block EC140

215 x 140 x 440 mm (h x w x d).

Colinwell EchoCheck Block EC215

215 x 215 x 440 mm (h x w x d).

Colour -
Block

See 'Options' below and insert requirements.

Mortar

Recommended mortars listed in 'Options' below. Insert requirements.

Mortar mix

See manufacturer's literature and insert requirements.

Joint

See manufacturer's literature and insert requirements.

Accessories/ Other requirements

Not required

Bond-beam blocks

Cavity closers

Cills

Half blocks

Lintels

Quoins

Squints

Standard product features

Finish:

Smooth.

Weight:

  • Colinwell EchoCheck Block EC140: 19.5 kg.
  • Colinwell EchoCheck Block EC215: 24.5 kg.

Technical characteristics:

  • Drying shrinkage (to BS EN 772.4): <0.04%.
  • Water absorption: <5%.
  • Tolerance category (to BS EN 771.5): D2.
  • Mean compressive strength: 15 N.
  • Average density: 2100 kg/m³.
  • Moisture content: 3% (internally).
  • Thermal conductivity (K-value): 1.28 W/m·K.
  • Shear bond strength (to BS EN 998.2, Annex C): 0.15 N/mm².
  • Maximum moisture movement: 0.15 mm/m.

Sound absorption coefficient (to BS EN ISO 354: 2003):

  • At 125 Hz: 0.55 (EC140), 0.75 (EC215).
  • At 250 Hz: 0.95 (EC140), 0.75 (EC215).
  • At 500 Hz: 0.80 (EC140 and EC215).
  • At 1000 Hz: 0.65 (EC140), 0.60 (EC215).
  • At 2000 Hz: 0.55 (EC140), 0.55 (EC215).
  • At 4000 Hz: 0.55 (EC140), 0.50 (EC215).

Product Options

Colour:

  • Bracken – Recommended mortar: Maroon U53.
  • Buff – Recommended mortar: Beige E74.
  • Cream – Recommended mortar: Cream G89. White cement should be used in the mix.
  • Green – Recommended mortar: Green N70. White cement should be used in the mix.
  • Honey – Recommended mortar: Tan C30.
  • Natural – Recommended mortar: Standard.
  • Oatmeal – Recommended mortar: White J88. White cement should be used in the mix.
  • Red – Recommended mortar: Orange T36.
  • Sandstone – Recommended mortar: Cream G89. White cement should be used in the mix.
  • Straw – Recommended mortar: Yellow D10.
  • Whinstone – Recommended mortar: Black L62.
  • White – Recommended mortar: White J88. White cement should be used in the mix.

Joint:

The spacing between control joints should be at 6–10 m intervals.

Accessories/ Other requirements:

Non-standard components and specials may be cut from standard units or, depending on quantity, manufactured to individual requirements. Consult manufacturer and insert requirements.

Digital objects
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Revit 2016 2 2.0
IFC
- 1 1.3
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