- Besblock Ltd
Produces architectural facing masonry and lightweight and dense aggregate building blocks for commercial and domestic applications. - Lignacite Ltd
Manufacture a variety of standard blocks as well as an extensive range of facing masonry. - Forticrete
Forticrete supplies a range of Standard Masonry Products and purpose designed foundation blocks. - Thakeham
Manufacturer and supplier throughout the South East of an extensive range of concrete building blocks and decorative products for the garden including paving, walling, block paving and both fair faced and general purpose dense aggregate building blocks. - Hillhouse Group Ltd
Designers, manufacturers and suppliers of dry coated stone and concrete products. - Thomas Armstrong (Concrete Blocks) Ltd
Thomas Armstrong supplies a comprehensive range of aerated, lightweight dense aggregate load bearing concrete blocks from its factories throughout the North of England. - Patersons Quarries Limited
Diversified from quarrying to a wide range of complimentary activities ranging from concrete block manufacture to waste management and engineering. - Plasmor Ltd
Provides architectural masonry and concrete blocks to the construction industry. - CEMEX (UK) Operations
CEMEX is a global building solutions company and leading supplier of cement, ready-mixed concrete and aggregates. In the UK, CEMEX also provides asphalt, roof tiles, concrete block solutions and railway sleepers.
Where to buy clinker blocks
- Skene Group Ltd - Skene House, Viewfield Road, Viewfield Industrial Estate, Glenrothes, Fife, KY6 2RD, 01592 632 230
- Travis Perkins Trading Co Ltd - Lodge Way House, Lodge Way, Harlestone Road, Northampton, Northamptonshire, NN5 7UG, 01604 752424
- Mona Precast (Anglesey) Ltd - Gaerwen Industrial Estate, Gaerwen, Isle of Anglesey, LL60 6HR, 01248 421772
We live in a bungalow built in the sixties with the brick outer skin, cavity, inner skin clinker block, which has recently been insulated.
We now have 8 patches of plaster approx 4-6 inches in diameter where a piece of the clinker block has for some reason pushed off the plaster. These areas do not correspond with the drill holes from the cavity wall insulation and these areas have no signs of damp at all and are at various levels. Have you any suggestions as to what can make this happen.
Please advise,
Many thanks.
This is very interesting. Please could you let me know the type of cavity wall insulation used and I will carry on investigating.
Kind regards
Debbie Prince - The Construction Centre
Debbie
The Clinker block is primarily grey in colour and the bit that has come off has dark black coal like deposits in it. Could this be a reaction to the wall now being warmer which is a glass fibre material?
Thank you for investigating for me
Sorry this has taken a while to investigate and I am still not able to give you a definitive answer. It seems much as you suspected, that it could possibly be the result of differential expansion of the clinker block due to the change of environment. It seems that in the 1960's the slags that were used for the production of such blocks were not subjected to the rigorous manufacturing and quality controls in force today. It is understood that some of the 'Old Bank Slags' used at this time were prone to expansion problems.
It may be also worth discussing the matter with your Local Authority Building Control Team, as they may have previously come across the problem in the area.
I have contacted a number of academics and will come back to you with any further information from them.
Kind regards
Debbie Prince - The Construction Centre