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Fresh and hardened properties of concrete containing cold bonded aggregates

  • Thomas, Job (Cochin University of Science and Technology) ;
  • B., Harilal (Cochin University of Science and Technology)
  • Received : 2013.10.30
  • Accepted : 2014.05.09
  • Published : 2014.06.25
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Abstract

The properties of fresh and hardened concrete made using three types of artificial cold bonded aggregates are determined. The properties, namely, slump, water absorption, compressive strength and splitting tensile strength of concrete containing artificial aggregate are reported. The variables considered are aggregate type and water-to-cement ratio. Three types of cold bonded aggregates are prepared using fly ash and quarry dust. The water-to-cement ratio of 0.35, 0.45, 0.55 and 0.65 is used. The test result indicates that artificial aggregates can be recommended for making the concrete up to a strength grade of 38 MPa. The use of quarry dust in the production of artificial aggregate mitigates environmental concerns on disposal problems of the dust. Hence, the alternate material proposed in this study is a green technology in concrete production.

Keywords

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