Abstract
One of the bases of sustainable development is the responsible management of natural resources, and this is the approach which has been adopted by developed countries as regards management of all kinds of waste, through the establishment of management strategies based on prevention, reuse and recycling. This article present the results of a physical, chemical and geotechnical characterization of colliery spoils stored in slag heaps in the Ciñera-Matallana coal mining area in León, Spain. The primary objectives of this research were to determine the suitability of this mining waste for use as granular material in rural and civil engineering infrastructures and to classify it according to national and international road construction standards. On the basis of the results obtained, they are proposed several possible uses (foundation and core layers in track and road embankments, granular sub-base for light traffic and top layers of embankments), although it should be noted the need for mechanical treatments as crushing or sieving and the recommendation of use of sulphate resistant cement to avoid the possible problems.
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Acknowledgments
This article was made possible by the research staff training grant (FPI BES-2011-047159) awarded to Julia García González, associated with project BIA2010-21194-C03-02; and the university teacher training Grant (FPU AP2010-0613) awarded to Desirée Rodríguez Robles.
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Cadierno, J.F., Romero, M.I.G., Valdés, A.J. et al. Characterization of Colliery Spoils in León: Potential Uses in Rural Infrastructures. Geotech Geol Eng 32, 439–452 (2014). https://doi.org/10.1007/s10706-013-9725-4
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DOI: https://doi.org/10.1007/s10706-013-9725-4