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Recycled Concrete as Aggregate for Structural Concrete Production

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Author Info

  • Mirjana Malešev

    ()
    (Department for Civil Engineering, Faculty of Technical Sciences, Trg Dositeja Obradovica 6, 21000 Novi Sad, Serbia)

  • Vlastimir Radonjanin

    ()
    (Department for Civil Engineering, Faculty of Technical Sciences, Trg Dositeja Obradovica 6, 21000 Novi Sad, Serbia)

  • Snežana Marinković

    ()
    (Faculty of Civil Engineering, University of Belgrade, Bul. kralja Aleksandra 73, 11000 Belgrade, Serbia)

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    Abstract

    A comparative analysis of the experimental results of the properties of fresh and hardened concrete with different replacement ratios of natural with recycled coarse aggregate is presented in the paper. Recycled aggregate was made by crushing the waste concrete of laboratory test cubes and precast concrete columns. Three types of concrete mixtures were tested: concrete made entirely with natural aggregate (NAC) as a control concrete and two types of concrete made with natural fine and recycled coarse aggregate (50% and 100% replacement of coarse recycled aggregate). Ninety-nine specimens were made for the testing of the basic properties of hardened concrete. Load testing of reinforced concrete beams made of the investigated concrete types is also presented in the paper. Regardless of the replacement ratio, recycled aggregate concrete (RAC) had a satisfactory performance, which did not differ significantly from the performance of control concrete in this experimental research. However, for this to be fulfilled, it is necessary to use quality recycled concrete coarse aggregate and to follow the specific rules for design and production of this new concrete type.

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    File URL: http://www.mdpi.com/2071-1050/2/5/1204/pdf
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    File URL: http://www.mdpi.com/2071-1050/2/5/1204/
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    Bibliographic Info

    Article provided by MDPI, Open Access Journal in its journal Sustainability.

    Volume (Year): 2 (2010)
    Issue (Month): 5 (April)
    Pages: 1204-1225

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    Handle: RePEc:gam:jsusta:v:2:y:2010:i:5:p:1204-1225:d:8176

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    Web page: http://www.mdpi.com/

    Related research

    Keywords: recycled aggregate; recycled aggregate concrete; mechanical properties; load test; structural concrete;

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    Cited by:
    1. Gholamreza Fathifazl & A. Ghani Razaqpur, 2011. "Discussion on “Malešev, M.; Radonjanin, V.; Marinković, S. Recycled Concrete as Aggregate for Structural Concrete Production. Sustainability , 2010, 2 , 1204-1225”," Sustainability, MDPI, Open Access Journal, vol. 3(2), pages 465-468, February.

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