2014
DOI: 10.1016/j.conbuildmat.2014.06.084
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Alternative processing procedures for recycled aggregates in structural concrete

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Cited by 221 publications
(104 citation statements)
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“…This method makes use the difference in the electromagnetic properties of the adhered mortar and natural aggregates. Pepe et al [6] used a rotating mill drum to process RCA. Aggregates collide each other while removing pieces of adhered mortar.…”
Section: Fig -1:typical Recycling Concrete Processmentioning
confidence: 99%
“…This method makes use the difference in the electromagnetic properties of the adhered mortar and natural aggregates. Pepe et al [6] used a rotating mill drum to process RCA. Aggregates collide each other while removing pieces of adhered mortar.…”
Section: Fig -1:typical Recycling Concrete Processmentioning
confidence: 99%
“…Various studies has been undertaken around the world to compare potential admixtures of recycled aggregate concrete (RAC) and their properties with natural aggregate concrete (NAC), for example [25], [26], [66] (Germany), [30] (UK), [34] (United Arab Emirates), [63] (Spain), [67] (Brazil), [68] (USA), [69] (India), [70] (China), [71] (Israel), [72] (Egypt), [73] (Portugal), [74] (Serbia), [75] (Finland) and [76] RA is the basic term, designating aggregate that contains varying proportions of RCA and RMA (RA = RCA + RMA). EU standards and related national specifications are oriented on these categories3 (see [75], [77], [78], [58]).…”
Section: Admixturementioning
confidence: 99%
“…However, during mechanical grinding recycled concrete aggregate could be damaged (micro -cracks by grinding). Autogenous cleaning [2] -with this process RCAs are placed in a rotating mill drum and collide against each other while removing pieces of attached mortar. The mill drum, 30 cm in diameter and 50 cm in depth (Figure 2), was filled up to 33% with ''raw'' recycled aggregates and the rotation rate was imposed to 60 rotations for minute.…”
Section: Mechanical Grindingmentioning
confidence: 99%
“…The European Directive n.98 of 19/11/2008 [1] calls on member states to take ''the necessary measures to promote the reuse of products and the preparing measures for re-use activities, particularly by promoting the establishment of economic tools and criteria about tenders, quantitative targets or other measures''. Particularly, it specifies that preparations for re-use, recycling and other types of recovery of material, including construction and demolition waste, shall be increased up to at least 70% (by weight) by 2020 [2]. Recycled Concrete Aggregate (RCA), derived from Concrete & Demolition waste generally consists of natural coarse aggregate and adhered mortar which makes it porous due to high mortar content, inhomogeneous and less dense [3,4].…”
Section: Introductionmentioning
confidence: 99%