Recycling Concrete

Author - 

Ali Akbar
Yogesh Kumar

ABSTRACT

Concrete recycling is an increasingly common method of utilizing the demolished or renovated concrete. The process involved for recycling are crushing, pre-sizing, sorting, screening and contaminant elimination. Further cleaning is necessary to ensure the recycled concrete products is free of dirt, clay, wood, plastic and organic materials. This is done by water floatation, hand picking, air separators and electromagnetic separators. The more care that is put into the quality, the better product we will receive with sound quality control and screening. Seceral advance have made recycling more economical for all types of concrete pavements. These includes:- · development of equipment for breaking concrete be they plain, mesh and doubly continous reinforced. · Develoment of methods to remove steel that minimizes the labour. Use and application of crushing equipments that can accomodate steel reinforcement.

Keywords

Reduction of waste; Reduction of Transportation Cost; Reduce Disposal Cost and Employement Oppurtunities.

References

  • “Home”, ConcreteRecycling.org. Archived from the original on 2010-05-01. Retrieved 201-04-05. 

  • “How Concrete is Recycled” (http:// www.concreterecycling.org/how.html), Concrete Recycling.org. Retrived 201-04-05. 

  • “Concrete Recycling”. Associated Construction Publications. Retrieved 2008-02-21. 

  • “Markets for Recycled Concrete Aggregate” (http:// www.concreterecycling.org/markets.html), Concrete Recycling.org. Retrieved 2010-04-05. 

  • Frederick G. Wright, Jr, “FHWA Recycled Materials Policy” (http://www.fhwa.dot.gov/legsregs/directives/policy/ recmatpolicy.html), Federal Highway Administration, November 20, 2006. Retrieved 2010-04-05. 

  • Rathmann, Chuck (28 Dec 2000). “A Recipe for Rubbization”. Roads & Bridges. Retrieved 2012-09-05. 

  • “Design of Riprap Revetment” (PDF). Federal Highway Administration. U.S. Department of Transporation. P.19 Retrieved 12 March 2014. 

  • “Riprap Revetments”. Ohio Department of Natural Resources Division of Soil and Water Resources. Retrieved 12 March 2014. 

  • “Value Engineering Benefits” (http:// www.c on cr et er ec yc li ng . org/ ec on om ic s. ht ml) , ConcreteRecycling.org. Retrieved 201-04-05. 

  • “Recycling Revisited”. Associated Construction Publication