Demolition of Gypsum Wallboard with Asbestos-Containing Mastic
Publication: Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management
Volume 6, Issue 4
Abstract
This paper reports a series of laboratory and field tests that measured the asbestos (chrysotile) fibers released during demolition of gypsum wallboard (GWB) that contained small amounts of chrysotile in the joint mastic. The tests include contractors’ data from two actual demolitions, a controlled demolition of a wall segment, and bench top laboratory tests of gypsum wallboard samples. The results of all these tests indicated that many fibers are released during GWB demolition, but few if any of the fibers were chrysotile. The use of electron microscopy demonstrated that less than 2% of the fibers counted from laboratory and controlled demolitions using light microscopy procedures was asbestos. The actual field demolitions, which included asbestos containing material other than GWB, indicated that less than 4% of the fibers counted using light microscopy procedures was asbestos.
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Information & Authors
Information
Published In
Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management
Volume 6 • Issue 4 • October 2002
Pages: 235 - 243
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: Feb 5, 2002
Accepted: Jun 5, 2002
Published online: Sep 13, 2002
Published in print: Oct 2002
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