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Título

Leaching in concretes containing recycled ceramic aggregate from the sanitary ware industry

Autor Medina Martínez, César; Frías, Moisés; Sanchez de Rojas, M.I.
Palabras clave Leaching behaviour
Recycled concrete
Fecha de publicación 2014
EditorElsevier
Citación Journal of Cleaner Production 66. 85-91 , (2014)
ResumenThe re-use of construction and demolition, ceramic and similar waste in the construction industry has aroused considerable interest in recent years, as an avenue for furthering the sustainable use of resources and reducing the volume of waste dumped in landfills. Recycling materials as components in the manufacture of cement-based products, however, calls for an understanding of the leachability of the elements present in the new materials that may be harmful to human health or the respective ecosystems. The present study addresses the effect of including recycled ceramic sanitary ware waste as a partial substitute (25%) for natural coarse aggregate in the manufacture of recycled concrete in direct contact with water intended for human consumption. The findings show that the inclusion of ceramic aggregate raises the alkali concentration (Na and K) slightly and lowers the concentration of other elements (B, Si, Cl and Mg) in the water. The levels of all the leached elements were observed to be lower than the limits specified in the legislation in effect on water for human consumption. Consequently, these new concretes are apt for use in such applications, for they ensure water quality.
Versión del editorhttp://dx.doi.org/10.1016/j.jclepro.2013.10.029
URI http://hdl.handle.net/10261/92073
DOI10.1016/j.jclepro.2013.10.029
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