Leachate and Radon Production from Fly Ash Autoclaved Cellular Concrete
Publication: Journal of Energy Engineering
Volume 123, Issue 2
Abstract
Environmental consequences and potential liabilities of autoclaved cellular concrete (ACC) use were assessed by aqueous leaching of crushed samples for metals and organic solvent extractions of solid ACC for polycyclic aromatic hydrocarbons (PAHs). Also, whole ACC blocks were tested for radon exhalation potential. Results show leachate concentrations were typically 10 times below, and always 100 times below the regulatory threshold of applicable drinking water standards. A Microtox bioassay procedure showed no toxic effects due to leached metals. Organic analysis of solvent extracts indicated no release of hazardous PAHs attributable to the fly ash ingredient of ACC. Measured rates of radon exhalation were too low to cause potentially dangerous buildups in confined air spaces. Fly ash ACC may be characterized as an environmentally “green” construction material based on these findings.
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Information & Authors
Information
Published In
Journal of Energy Engineering
Volume 123 • Issue 2 • August 1997
Pages: 55 - 67
Copyright
Copyright © 1997 American Society of Civil Engineers.
History
Published online: Aug 1, 1997
Published in print: Aug 1997
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