Abstract
The economic parameters associated with use of recycled concrete debris as aggregate in the U.S. economy have been studied. It was found that recycled concrete debris can compete economically with conventional aggregate in areas where the latter is locally unavailable as well as in areas where large quantities of concrete debris are generated every year so that economies of scale in the processing of these debris can be realized.
Concrete produced with recycled concrete debris as aggregate has lower strength than concrete of similar composition produced with natural aggregate. In order to retain the same strength, a higher cement content should be used with the recycled material. To compensate for the increased cost of cement, recycled aggregate should sell for less than natural aggregate. At a price of $2.40 U.S. dollars per tonne for recycled aggregate versus a price of $4.70 U.S. dollars per tonne for natural aggregate, the two raw materials would yield a concrete which would cost the same and perform identically as construction material.
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© 1981 Plenum Press, New York
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Frondistou-Yannas, S. (1981). Economics of Concrete Recycling in the United States. In: Kreijger, P.C. (eds) Adhesion Problems in the Recycling of Concrete. Nato Conference Series, vol 4. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-8312-7_14
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DOI: https://doi.org/10.1007/978-1-4615-8312-7_14
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