Strategies for Using Stabilized Wastes in Construction
This research investigated the methods of making soils contaminated with lead safe and usable in construction. The amount of lead that could be extracted with the Toxicity Characteristic Leaching Procedure (TCLP) test was compared with the amount leached out by diffusion after the soil had been treated with cement by itself and in conjunction with additives. The solidification/stabilization process was found very effective. The best results occurred when cement was used in combination with either apatite or sodium silicate. Each in conjunction with cement decreased the mobility of the lead significantly. This research also showed that the lead was held on the surface of the particles and is concentrated therefore on the fraction of particles having the smallest size. It is shown that the lead can be washed off the particle surfaces under the proper conditions.
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Corporate Authors:
University of Connecticut, Storrs
Department of Civil and Environmental Engineering, 261 Glenbrook Road
Storrs, CT United States 06269-2037Connecticut Department of Transportation
280 West Street
Rocky Hill, CT United States 06067 -
Authors:
- Long, Richard P
- Grasso, Domenic
- Zhang, Xinguo
- O'Sullivan, Dennis
- Publication Date: 1996-3
Language
- English
Media Info
- Media Type: Web
- Edition: Final Report
- Features: Appendices; Bibliography; Figures; References; Tables;
- Pagination: 168p
Subject/Index Terms
- TRT Terms: Cement; Construction; Leaching; Lead (Metal); Size; Sodium silicate; Soils; Solidification; Stabilized materials; Strategic planning; Toxicity; Washing; Wastes
- Uncontrolled Terms: Apatite minerals
- Subject Areas: Construction; Environment; Geotechnology; Highways; Maintenance and Preservation; I50: Construction and Supervision of Construction;
Filing Info
- Accession Number: 01004504
- Record Type: Publication
- Report/Paper Numbers: JHR 96-249, Project 93-3
- Files: TRIS, STATEDOT
- Created Date: Oct 3 2005 7:41AM