We are Part of the Thomas Armstrong Group
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.
Armstart
MEDIUM DENSITY AGGREGATE FOUNDATION BLOCKS
Widely used by major housebuilders, Armstart offers an efficient, simple and cost-effective method of block construction below damp proofing course (DPC) saving on labour and mortar.
Manufactured in a range of width / length combinations, these Medium Density Foundation Blocks are a faster, simpler and safer method when compared to constructing cavity foundation walls. No wall ties are required, no cavity filling and no danger of collapsed cavities. Resulting in faster build rates, less mortar and less repetitive manual handling. Weighing less than 20kg, these lightweight concrete blocks contain up to 90% recycled and reclaimed raw material.
Our Armstart Foundation blocks are manufactured to BS EN 771-3 and are ISO 9001 Quality Assured, ISO 14001 Environmentally Certified and hold BES 6001 ‘Excellent’.
APPLICATIONS
- Solid foundation walls from 250mm-350mm thick to suit cavity widths of 75mm-150mm.
- Solid foundation walls below damp-proof course (DPC).
- Suitable for soil conditions up to DS-3 as defined in BRE Special Digest 1.
- A range of strengths available to suit both low and high-rise buildings.
- Each block offers 2 alternative widths.
KEY ADVANTAGES
- Below 20kg in weight to comply with HSE and CDM guidelines on repetitive manual handling safety.
- A simple and safer alternative to cavity foundation wall; no wall ties required, cavity filling or danger of collapsed cavities, faster build rates, less mortar and repetitive manual handling required.
UKCA CERTIFICATIONS
DOCUMENTS
PROPERTY
REFERENCE
VALUES
Face Sizes (L x H)
Dimensional Tolerance
Gross Dry Density
Mean Compressive Strengths
Manufacturing Category
Design Thermal Conductivity
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 772-14
BS EN 13501-1
BS EN 1996-1-1
300mm x 250mm
300mm x 275mm
320mm x 280mm
350mm x 215mm
350mm x 250mmCategory D1
1450 - 1550 kg/m³
7.3 N/mm²
Category II
0.49 W/mK
< 0.6 mm/m
Class A1 Reaction to Fire
Solid - Group 1
Standard
140mm
Available Width
* Higher strengths are available to order
BLOCK SIZE
(L x H x W)
300mm x 250mm
300mm x 275mm
320mm x 280mm
350mm x 250mm
300mm x 215mm
BLOCKS
PER PACK
72
72 / 63
54
48 / 56
70
BLOCKS
PER m²
21.5
25.6
21.5
23.4
20.2
23.0
18.5
25.6
29.6
BLOCKS
PER LINEAR m²
3.23
3.85
3.23
3.51
3.03
3.45
2.78
3.85
4.44
LINEAR PER m²
PER PACK
22.32
18.72
22.32 / 19.53
20.52 / 17.96
17.82
15.66
17.28 / 20.16
12.48 / 14.56
15.75
LAYING
ORINETATION
If walled 300mm length (a 250 wide wall)
If walled 250mm length (a 300 wide wall)
If walled 300mm length (a 275 wide wall)
If walled 275mm length (a 300 wide wall)
If walled 320mm length (a 280 wide wall)
If walled 280mm length (a 320 wide wall)
If walled 350mm length (a 250 wide wall)
If walled 250mm length (a 350 wide wall)
If walled 215mm length (a 350 wide wall)
There are two sets of values for some products due to our pack sizes varying at different manufacturing locations. Please check details with your nearest sales office.
Block weights quoted are approximate and include the typical additional weight from the natural moisture content although this can vary slightly.
- The m² figures include the conventional 10mm mortar joint.
- Pack size quantities may vary between manufacturing locations. Always check details with your nearest sales office.