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We are Part of the Thomas Armstrong Group

THOMAS ARMSTRONG

(CONCRETE BLOCKS)

LTD

Airtec Foundation 140mm

AERATED CONCRETE FOUNDATION BLOCKS

Our 140mm Airtec Foundation blocks are designed as a lightweight, easy to lay, speedy and cost-effective alternative to traditional cavity foundation walls. A solid Airtec Foundation wall of 140mm high blocks built two courses high means a faster build, shallower trenches, less waste material, no need for wall ties, less mortar and zero chance of collapsed cavities.

The excellent thermal properties of these lightweight Airtec Foundation blocks enhance thermal integrity throughout the build especially if used in conjunction with Airtec walls and floors blocks. Hand-holds are also provided at the ends of the blocks for easier, safe manual handling.

All Airtec products are ISO 9001 Quality and ISO 14001 Environmentally certified and with the highest possible BES 6001 Responsible Sourcing rating of ‘Excellent’

In common with all other Airtec blocks, these lightweight large concrete blocks offer the very best possible dimensional tolerance category of 'Thin Layer Mortar B' (TLMB) but are perfectly suitable for conventional 10mm mortar joint construction.

With all aerated concrete in the UK, the surfaces of the building blocks may contain a random number of larger natural air bubbles/cells on the block surface due to an unavoidable consequence of the manufacturing process. These large cells are perfectly normal and are not a defect and do not detract from performance in any way.

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.

APPLICATIONS

  • Solid foundation walls below damp-proof course (DPC).
  • External solid walls above damp-proof course (DPC).
  • Support for cavity, solid, masonry and timber frame walls.
  • Support for block & beam suspended floors.

ADVANTAGES

  • ISO 9001 and ISO 14001 Certified.
  • BES 6001 "EXCELLENT" Sustainability rating.
  • Manufactured to BS EN 771-4.
  • BBA Certified, Category 1 Manufactured.
  • Low Weight.
  • Exceptional thermal performance.
  • Cost-effective solution.
  • Safer handling.
  • Easy to cut.

DOCUMENTS

  •  

    PROPERTY

    REFERENCE

    AIRTEC STANDARD 3.6 N/mm²

    AIRTEC SEVEN 7.3 N/mm²

    Face Size (L x H)

    Available Widths

    Dimensional Tolerance

    Gross Dry Density

    Mean Compressive Strengths

    Manufacturing Category

    Thermal Conductivity (Protected Inner Leaf)

    Thermal Conductivity (Below Ground)

    Moisture Movement

    Fire Resistance

    Configuration

    Available Texture Finish

    BS EN 771-4

     

    BS EN 772-16

    BS EN 772-13

    BS EN 772-1

    BS EN 771-4

    BS EN 1745

    BS EN 1745

    BS EN 771-4

    BS EN 13501-1

    BS EN 1996-1-1

     

    620mm x 140mm

    275mm

    300mm

    350mm

    TLMB (Thin Layer Mortar Category B)

    530 (±50) kg/m³

    3.6 N/mm²

    Category I

    0.11 W/mK

    0.18 W/mK

    0.40 mm/m

    Class A1 Reaction to Fire

    Solid - Group 1

    Standard

    620mm x 140mm

    275mm

    300mm

    350mm

    TLMB (Thin Layer Mortar Category B)

    730 (±50) kg/m³

    7.3 N/mm²

    Category I

    0.17 W/mK

    0.29 W/mK

    0.40 mm/m

    Class A1 Reaction to Fire

    Solid - Group 1

    Standard

  •  

    AIRTEC STANDARD

    3.6 N/mm²

    AIRTEC SEVEN

    7.3 N/mm²

    Block Size (mm)

    275

    300

    350

    275

    300

    350

    Blocks per pack

    30

    30

    24

    30

    30

    24

    m² per pack

    2.84

    2.84

    2.27

    2.84

    2.84

    2.27

    Linear m² per pack

    18.9

    18.9

    15.1

    18.9

    18.9

    15.1

    Weight Per Pack (Kg)

    478

    522

    487

    659

    718

    671

    Blocks per m²

    10.58

    10.58

    10.58

    10.58

    10.58

    10.58

    Block Weight (Kg)

    13.0

    14.2

    16.6

    13.0

    14.2

    16.6

    • A range of a wagon sizes are available, with or without pallets. Ring your local Sales office for further details.
    • Block weight is at the equilibrium moisture content of 3% by weight
    • Pack weight allows for maximum moisture content when packed, actual delivered weight will be less
    • m² per pack figure based on the inclusion of conventional 10mm mortar joints
    • Health & Safety guidelines recommend that precautions be taken when using blocks over 20kg in weight.