Influence of Recycled Coarse Aggregate on Properties of Concrete

Forfattere

  • O. J. Ameh University of Lagos, Nigeria
  • U. E. Edike Department of Building University of Lagos, Nigeria

Nøgleord:

concrete, recycled aggregate, sustainable construction, properties

Resumé

This study focuses on the influence of recycled coarse aggregate (RCA) on properties of concrete. Five different mixtures of RCA replacement comprising 0, 25, 50, 75 and 100% RCA were used. It was found that workability, saturated bulk density, compressive strength and flexural strength decreases with increase in RCA content in concrete. 100% manually RCA concrete passed the 17 kN/m2 compressive strength limit generally acceptable for concrete work of non-high strength requirement without additive. The research, therefore, recommends the use of recycled coarse aggregate concrete for residential and light commercial building projects bearing in mind that low-strength concrete is only appropriate for mild environmental exposures, and interior concrete protected from the elements. This development in recycled concrete technology would help to alleviate our losses through efficient reuse of recovered coarse aggregate from demolished buildings and infrastructure; hence, reducing waste and dung creation and thereby enhancing adequate environmental management. Keywords: concrete, recycled aggregate, sustainable construction, properties

Forfatterbiografi

  • U. E. Edike, Department of Building University of Lagos, Nigeria
    Postgraduate studentDepartment of BuildingUniversity of Lagos

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Publiceret

2013-12-17

Nummer

Årg. 3 Nr. 3 (2013)

Sektion

Research Articles

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