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We are Part of the Thomas Armstrong Group

THOMAS ARMSTRONG

(CONCRETE BLOCKS)

LTD

LOW DENSITY LIGHTWEIGHT AGGREGATE BLOCKS

These lightweight aggregate blocks are designed to offer the builder a low weight, loadbearing block with enhanced thermal properties suitable for a wide range of applications.

Ultralite blocks are manufactured to BS EN 771-3 and are ISO 9001 Quality Assured, ISO 14001 Environmentally Certified and hold BES 6001 ‘Excellent’.

Weighing less than 20kg, these high-quality aggregate blocks are manufactured from low density, quality aggregates and available in a range of sizes. These lightweight concrete blocks are only available in a ‘Standard’ texture finish providing an excellent surface for mortars, renders and plasters.

APPLICATIONS

  • Inner and outer leaf of cavity walls up to 3 storeys 7.3 N/mm² only; 2 storeys if < 7.3 N/mm².
  • Internal partition walls.
  • Walls below damp-proof course (DPC) (7.3 N/mm² only).
  • Acoustic separating walls to Part E of the Building Regulations.
  • BRE Green Guide A+ rated walls.
  • 'Standard’ texture finish which provides an excellent surface for mortars, renders and plasters.

KEY ADVANTAGES

  • Low weight.
  • Safer handling.
  • Easy to cut.
  • Accepts most standard fixings.

GALLERY

DISCLAIMER

The block and texture images are intended for indicative purposes only and actual textures and shades may vary between manufacturing locations. Please contact your regional sales office for further information and sample blocks. We advise the construction of sample panels on site as masonry appearance cannot be appreciated from individual blocks.

CE CERTIFICATIONS

DOCUMENTS

  •  

    PROPERTY

    REFERENCE

    VALUES

    Face Size (L x H)

    Dimensional Tolerance

    Gross Dry Density

    Mean Compressive Strengths

    Manufacturing Category

    Thermal Conductivity (Protected Inner Leaf)

    Thermal Conductivity (Exposed Outer Leaf)

    Moisture Movement

    Fire Resistance

    Configuration

    Available Texture Finish

    BS EN 771-3

    BS EN 772-16

    BS EN 772-13

    BS EN 772-1

    BS EN 771-3

    BS EN 1745

    BS EN 1745

    BS EN 772-14

    BS EN 13501-1

    BS EN 1996-1-1

     

    440mm x 215mm

    Category D1

    950 - 1050 kg/m³

    3.6 N/mm²

    7.3 N/mm²

    Category II

    0.32 W/mK

    0.34 W/mK

    < 0.6 mm/m

    Class A1 Reaction to Fire

    Solid - Group 1

    Standard

    Available Widths

     

    90mm, 100mm or 140mm

  •  

    PROPERTY

    BLOCK WIDTH

    90mm

    100mm

    140mm

    ‘R’ Value

    0.36 m²k/W

    0.40 m²k/W

    0.56 m²k/W

    Walled Weight

    Sound Reduction

    Block Weight

    Fire Resistance

    86 kg/m²

    42 Rw, dB

    9.8 kg

    4 Hours

    96 kg/m²

    43 Rw, dB

    10.7 kg

    6 Hours

    134 kg/m²

    46 Rw, dB

    14.6 kg

    6 Hours

  •  

    BLOCK WIDTH

    90mm

    100mm

    140mm

    BLOCKS PER PACK

    80

    72 or 90

    48 or 60

    m² PER PACK

    8.0

    7.2 or 9

    4.8 or 6

    Pack details may vary slightly between manufacturing locations. Always check details with your nearest sales office.