Using UCS as a Surrogate Performance Standard at the NCSU NPL Site
Publication: Journal of Environmental Engineering
Volume 132, Issue 10
Abstract
Treated hazardous material at the North Carolina State University (NCSU) Lot 86 National Priorities List (NPL) Site was evaluated using unconfined compressive strength (UCS) as a surrogate performance standard for the toxicity characteristic leaching procedure (TCLP). During a preconstruction treatability study, UCS test results were related to the TCLP performance standards as stipulated in the record of decision. During construction, 113 UCS samples were obtained and test results indicated that over of pre-RCRA (Resource Conservation and Recovery Act) chemical waste generated from the University’s educational and research laboratories had been successfully stabilized. Using a crane-mounted mixing unit for a portion of the stabilization operations, and a trackhoe unit for the remainder of the construction, of cement and of water were mixed with impacted soil and waste material resulting in a thick encapsulated monolith half the size of a football field.
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Acknowledgement
The driving force behind this project for NCSU was Duane Knudson, Environmental Affairs Manager for the University. His efforts and input associated with this work were invaluable and much appreciated.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 132 • Issue 10 • October 2006
Pages: 1355 - 1365
Copyright
© 2006 ASCE.
History
Received: Feb 10, 2003
Accepted: Apr 10, 2006
Published online: Oct 1, 2006
Published in print: Oct 2006
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