Abstract
The sustainable management of solid wastes stimulates metallurgic and metal mechanics industries to look for safety applications for such wastes. The present paper examines the mechanical properties, compressive and flexural strength, of polymer mortars (PM) made with spent foundry waste, i.e., polymer impregnated foundry sand as aggregate, and presents a comparison with specimens made with fresh sand. The foundry sand is contaminated with alkaline-phenolic resin from the mould making process. PM consists of mineral filler and a polymer binder, which is normally a thermosetting resin. Polyester recycled from PET and epoxy resins are used as binders. It is found that the recycled sand does influence the mechanical properties, i.e., the polymer mortars made with recycled sand presents a decrease in mechanical characteristics of polymer mortars. Environmental acceptance of foundry sands requires reliable knowledge of sand composition and sand residue composition variations, especially regarding their environmental characteristics.
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