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Título: | Pre-normative research on the use of mixed recycled aggregates in unbound road sections |
Autor: | Vegas, Iñigo; Ibáñez, Jose A.; Lisbona, A.; Sáez de Cortazar, A.; Frías, Moisés CSIC ORCID | Palabras clave: | Construction Waste Mixed recycled aggregate Unbound section Pozzolanic |
Fecha de publicación: | may-2011 | Editor: | Elsevier | Citación: | Construction and Building Materials 25(5): 2674-2682(2011) | Resumen: | [EN] This paper presents and discusses the results arising from a pre-normative study aimed at determining the physical, chemical and mineralogical characteristics of mixed recycled aggregates produced from the treatment of mixed rubble for use in unbound structural layers of road. The results of this research show that the combined presence of concrete and ceramic materials induces pozzolanic reactions, which contribute to an increase in the bearing capacity of the compacted mixed recycled aggregate. From an analysis of their chemical characteristics, it can be inferred that the total sulphur compound content, the gypsum content and soluble salt contents can be regulated with reference to the water soluble sulphates test, given the high correlation that exists between those parameters. Generally, mixed recycled aggregates with ceramic material contents below 35%, organic matter contents below 0.8% and water soluble sulphate contents below 0.4% constitute a granular material that is technically feasible for use in unbound structural road sections. | Versión del editor: | http://dx.doi.org/10.1016/j.conbuildmat.2010.12.018 | URI: | http://hdl.handle.net/10261/36986 | DOI: | 10.1016/j.conbuildmat.2010.12.018 | ISSN: | 0950-0618 |
Aparece en las colecciones: | (IETCC) Artículos |
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