Garach, Laura López, Mónica Ordóñez, Javier Alegre, Javier Moya, José Antonio Agrela Sáinz, Francisco 2017-11-06T09:59:13Z 2017-11-06T09:59:13Z 2015 http://hdl.handle.net/10396/15283 Recycled concrete aggregates and mixed recycled aggregates are specified as types of aggregates with lower densities, higher water absorption capacities, and lower mechanical strength than natural aggregates. In this paper, the mechanical behaviour and microstructural properties of natural aggregates, recycled concrete aggregates and mixed recycled aggregates were compared. Different specimens of unbound recycled mixtures demonstrated increased resistance properties. The formation of new cement hydrated particles was observed, and pozzolanic reactions were discovered by electronon microscopy in these novel materials. The properties of recycled concrete aggregates and mixed recycled aggregates suggest that these recycled materials can be used in unbound road layers to improve their mechanical behaviour in the long term application/pdf eng MDPI https://creativecommons.org/licenses/by/4.0/ Materials 8(12), 8804-8816 (2015) Self-cementing Mechanical properties Recycled aggregates Pozzolanic reactions Electronic microscopy Improvement of Bearing Capacity in Recycled Aggregates Suitable for Use as Unbound Road Sub-Base info:eu-repo/semantics/article http://dx.doi.org/10.3390/ma8125493 info:eu-repo/semantics/openAccess