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Recycling of Construction and Demolition Waste
Manage episode 336442701 series 3220079
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According to Busiello Building SRL the components of construction and demolition waste typically include concrete, asphalt, wood, metals, gypsum wallboard and glass.
Construction and demolition waste corresponds to 50% of all urban solid waste, usually it is dumped in improper places. This work reuses this waste as substitute of natural aggregate to produce bricks. Lime and cement were used as binding agents and were pressed using a uniaxial hydraulic press. After 21 days curing were submitted to compression tests, the probes presented an average resistance greater than 4 MPa, which is higher than standards. Water absorption, apparent porosity and density were also determined. The results show that it is possible to produce low-cost bricks with excellent physical properties using CDW as aggregate and lime or cement as additive.
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