H H UK

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 Celcon Aircrete blocks 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.