2011
DOI: 10.4028/www.scientific.net/amr.361-363.891
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Study on Recycling Utilization of Discarded Concrete

Abstract: For environmental conservation, resource saving and sustainable development, discarded concrete sources are introduced and current situation of its application is summarized. Then, the facing problems and solutions on concrete-recycling use are analyzed, and recycled application methods of discarded concrete are proposed.

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“…It is estimated that 1 billion tonnes/year of waste concrete are generated worldwide from construction and demolition of infrastructure (Mehta, 2001). Recycling of this waste substitutes 20 per cent of the global consumption of natural sand, gravel, and crushed stone, utilized as a bound and unbound material over a wide variety of civil construction works, thereby saving natural resources (Jia et al , 2012; Liu and Chern, 2008; Mehta, 2001). Concrete currently contributes 81 per cent of the volume of construction and demolition waste in Australia (Tam, 2009); however, almost 74 per cent is recycled and utilized over a wide variety of civil construction works (Harper, 2006).…”
Section: Introductionmentioning
confidence: 99%
“…It is estimated that 1 billion tonnes/year of waste concrete are generated worldwide from construction and demolition of infrastructure (Mehta, 2001). Recycling of this waste substitutes 20 per cent of the global consumption of natural sand, gravel, and crushed stone, utilized as a bound and unbound material over a wide variety of civil construction works, thereby saving natural resources (Jia et al , 2012; Liu and Chern, 2008; Mehta, 2001). Concrete currently contributes 81 per cent of the volume of construction and demolition waste in Australia (Tam, 2009); however, almost 74 per cent is recycled and utilized over a wide variety of civil construction works (Harper, 2006).…”
Section: Introductionmentioning
confidence: 99%