H+H - Int

Although H+H UK has brought aircrete technology a long way forward since the 1950s, the manufacturing process remains much the same as it has always been.

The materials used in the manufacture of H+H Aircrete  are pulverised fuel ash (PFA), sand, cement, lime and water. The manufacturing process, which is closely monitored at all times, begins by mixing PFA, sand and water to form a slurry. The slurry is heated and mixed with cement and lime, and finally a small quantity of aluminium powder is evenly dispersed through the mixture before it is poured into moulds.

The aluminium initiates a chemical reaction, generating the minute bubbles which form the characteristic aircrete structure and appearance. When the mixture has partially set the resultant 'cakes' are wire-cut into blocks of predetermined size, and transferred to autoclaves for high pressure steam curing. During this process the ingredients combine to form the calcium silicate hydrates which establish the special properties of the finished product.

Every H+H UK factory is equipped with process laboratories staffed by qualified chemists and technicians who ensure strict compliance with the company's IMS certification to ISO 14001.

The manufacture of H+H Aircrete is environmentally friendly compared to many other materials. A large proportion of the product is PFA, a by-product from coal-burning power stations which would otherwise be used in landfill. The process is also highly efficient with most waste material and energy being recycled back into the process itself.

To determine the products and applications we have available, follow the links on the Left hand panel or follow the Library link to download information on our products and services.
 

For more information please call 01732 886444 or email info@hhcelcon.co.uk.