Educational Procurement Journal - December 2007 - (Page 18)

ROAMIN’ W I T H Y E O MAN Reuse and Recycling Options for Construction and Demolition Debris by Brian Yeoman NAEP L ast fall, we discussed deconstruction as more cost-effective and environmentally friendly than carting to the landﬁll and suggested how campus Purchasing could facilitate the process. Below, we’ll examine common construction “waste” materials and viable options for disposal. Wood Wood waste (dimensional lumber, sheathing, trim) constitutes 40 percent to 50 percent of the volume of the residential new construction waste stream and 15 percent to 25 percent of the commercial. The most common reuse option for construction and demolition (C&D) wood is as fuel in industrial boilers. Most wood used for fuel is chipped. Wood treated with preservatives such as copper chromated arsenate (CCA), creosote, or chlorophenol should not be included. The ash of treated wood is likely to contain high-enough concentrations of heavy metals such as arsenic and chromium to render the ash “hazardous” and require its disposal under the guidelines of the Resource Conservation and Recovery Act (RCRA). Efforts should focus on reuse. One alternative is as a material in cement. Proper sorting and disposal practices are a must (Solo-Gabriele, et al., 1998). Wood can be reduced in volume and downcycled to make products such as plywood and oriented strand board (OSB). Unfortunately, the adhesive content of engineered wood products can limit future recycling. The economics of using wood chip waste for engineered wood products is highly dependent upon local waste wood markets. “Remember: you, too, can do great things!” 18 EDUCATIONAL PROCUREMENT JOURNAL December 2007

Table of Contents Feed for the Digital Edition of Educational Procurement Journal - December 2007

Educational Procurement Journal - December 2007 Contents Letter From the CEO: Sustainability in Higher Education Heard On the Streets Calculating Procurement's Value Cost-Per-Copy Contract and Site-Based Funding At a K-12 School District Bargain-Basement Solutions to Automate and Streamline Procurement Processes LEED & Leadership Certification Roamin' with Yeoman Best and Final

Educational Procurement Journal - December 2007

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