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Lightweight champ

Published Monday, April 01, 2002

For more than 70 years since its inception, autoclaved aerated lightweight concrete has enjoyed a reputation for excellent insulation properties and low density. Traditional production of aerated lightweight concrete employs portland cement, fly ash, lime and fine sands as major raw material components and involves curing products in an autoclave. Estimated costs for an autoclaved aerated lightweight concrete plant range from $25 million to $50 million. CJS Technology Inc. of Ontario and Hamburg, N.Y.-based Advanced Materials Technologies, LLC have developed technologies (patent pending) for manufacturing ultra-lightweight fiber-reinforced cellular concrete — Cret-O-Lite — using waste materials as the major ...

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