Colinwell has been manufacturing dense aggregate common concrete blocks for over 60 years. Colinwell dense aggregate common concrete blocks are durable, robust and have excellent loadbearing, fire resistance and sound insulation qualities. Colinwell common concrete blocks are manufactured to BS EN 771-3. These blocks are suitable for the construction of all types of walls including those below ground and foundations (where soil conditions do not necessitate sulphate resistant products) and can be used for T-Beam block floor systems. Lightweight Blocks Colinwell Lightweight Blocks are made from pumice lightweight aggregate, a natural product formed by volcanic activity and used in construction since Roman times. Two finishes are available; a common unit with a open finish to receive plaster and a Fair Face (Fairlite) unit with a smooth finish to be left painted or unpainted. Colinwell Pumice Lightweight Blocks are manufactured to BS EN 771-3 and Quality Assurance Accreditation under BS EN 9001.         Copyright © Colinwell Concrete 2008 Site designed by Atom Software