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Combined effects of recycled hydrated cement and recycled aggregates on the mechanical properties of concrete

dc.contributor.authorLetelier V.
dc.contributor.authorTarela E.
dc.contributor.authorMuñoz P.
dc.contributor.authorMoriconi G.
dc.date.accessioned2020-09-02T22:21:53Z
dc.date.available2020-09-02T22:21:53Z
dc.date.issued2017
dc.identifier10.1016/j.conbuildmat.2016.12.010
dc.identifier.citation132, , 365-375
dc.identifier.issn09500618
dc.identifier.urihttps://hdl.handle.net/20.500.12728/5137
dc.descriptionThis paper analyses the mechanical properties of concrete manufactured replacing simultaneously different amounts of cement and natural coarse aggregates with recycled hydrated cement (RHC) and recycled aggregates (RA), respectively. The effect of four variables in the mechanical behavior is analyzed: amount of RHC, maximum RHC particle size, RHC rehydration temperature and percentage of RA. The goal is to determine their optimal combination to maximize the reuse of recycled materials maintaining the performance of the material and minimizing its environmental impact. Results show how RHC and RA can be used simultaneously without significant losses in the mechanical properties of the concrete. The optimum combination of the four parameters considered is: 20% of RA, 5% of RHC replacement with a maximum size of 75 μm and dehydrated at 900 °C. However, the low significance of the amount of RHC and the dehydration temperature suggest that the former may be increased and the later lowered maximizing the reuse of construction and demolition waste and decreasing the energetic cost of the new material. © 2016 Elsevier Ltd
dc.language.isoen
dc.publisherElsevier Ltd
dc.subjectMechanical behavior of recycled concrete
dc.subjectRecycled aggregates
dc.subjectRecycled hydrated cement
dc.subjectAggregates
dc.subjectCements
dc.subjectConcrete aggregates
dc.subjectConcretes
dc.subjectDemolition
dc.subjectEnvironmental impact
dc.subjectHydration
dc.subjectMechanical properties
dc.subjectParticle size
dc.subjectConstruction and demolition waste
dc.subjectDehydration temperature
dc.subjectHydrated cement
dc.subjectMechanical behavior
dc.subjectOptimal combination
dc.subjectProperties of concretes
dc.subjectRecycled aggregates
dc.subjectRecycled concretes
dc.subjectRecycling
dc.titleCombined effects of recycled hydrated cement and recycled aggregates on the mechanical properties of concrete
dc.typeArticle


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