2016
DOI: 10.1016/j.jclepro.2016.03.137
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The incorporation of construction and demolition wastes as recycled mixed aggregates in non-structural concrete precast pieces

Abstract: The incorporation of construction and demolition wastes as recycled mixed aggregates in non-structural concrete precast pieces,

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Cited by 88 publications
(74 citation statements)
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“…The aggregate that facilitates most the recycling of construction wastes is RMA, because it does not need classification prior to use. The bibliography shows that this aggregate is mainly used in non-structural elements [5][6][7]. Some attempts have been made to use recycled mixed aggregates in structural concrete, and the conclusion has been that they do not fulfill the requirements of Spanish standards [8].…”
Section: Introductionmentioning
confidence: 99%
“…The aggregate that facilitates most the recycling of construction wastes is RMA, because it does not need classification prior to use. The bibliography shows that this aggregate is mainly used in non-structural elements [5][6][7]. Some attempts have been made to use recycled mixed aggregates in structural concrete, and the conclusion has been that they do not fulfill the requirements of Spanish standards [8].…”
Section: Introductionmentioning
confidence: 99%
“…The bulk density shows no variation from compacted to non-compacted samples, as it could be expected since all the samples came from the same mix. The reference concrete has high density, but the samples prepared with fractions of hollow tiles show a slightly higher density, possibly due to the compaction method usually applied to these elements (vibropressing) [5]. The samples prepared with ceramic aggregates exhibits the lowest porosity among those which allowed density measurement.…”
Section: Density and Porositymentioning
confidence: 99%
“…Those wastes (recycled mixed aggregate, RMA) could not be used, according to the Spanish standard, even for non-structural concrete. This makes the recycling rates very low in Spain [3], [4] However, many efforts are being made for producing non-structural elements of concrete, containing recycled aggregates, even at industrial scale [5]. In these works, the mechanical properties, some durability aspects are determined.…”
Section: Introductionmentioning
confidence: 99%
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“…Las pocas investigaciones que hay sobre su aplicación en hormigones como árido reciclado mixto [1,2,3,4,5] concluyen que la mayoría de las propiedades del hormigón se ven afectadas negativamente, tanto más cuanto mayor es la sustitución de árido. Esto ha hecho que actualmente haya mucha desconfianza y apenas si se recicla, solo se emplea como relleno de zanjas o en firmes de carreteras.…”
Section: -Introducciónunclassified