Aircrete Products Association Ltd. www.aircrete.co.uk
Brick Development Association Ltd. www.brick.org.uk
International Masonry Society www.masonry.org.uk
Concrete Block Association www.cba-blocks.org.uk
Modern Masonry www.modernmasonry.co.uk
Mortar Industry Association www.mortar.org.uk
The Concrete Centre www.concretecentre.com
Other useful links
Construction Products Association http://www.constructionproducts.org.uk/