Geomechanics and Engineering

  • 제6권3호
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  • Pages.235-248
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  • 2014
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  • 2005-307X(pISSN)
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  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Assessment of recycled concrete aggregates as a pavement material

  • Jayakody, Shiran (School of Urban Development, Science and Engineering Faculty, Queensland University of Technology) ;
  • Gallage, Chaminda (School of Urban Development, Science and Engineering Faculty, Queensland University of Technology) ;
  • Kumar, Arun (School of Urban Development, Science and Engineering Faculty, Queensland University of Technology)
  • 투고 : 2013.02.12
  • 심사 : 2013.10.23
  • 발행 : 2014.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

Population increase and economic developments can lead to construction as well as demolition of infrastructures such as buildings, bridges, roads, etc resulting in used concrete as a primary waste product. Recycling of waste concrete to obtain the recycled concrete aggregates (RCA) for base and/or sub-base materials in road construction is a foremost application to be promoted to gain economical and sustainability benefits. As the mortar, bricks, glass and reclaimed asphalt pavement (RAP) present as constituents in RCA, it exhibits inconsistent properties and performance. In this study, six different types of RCA samples were subjected classification tests such as particle size distribution, plasticity, compaction test, unconfined compressive strength (UCS) and California bearing ratio (CBR) tests. Results were compared with those of the standard road materials used in Queensland, Australia. It was found that material type 'RM1-100/RM3-0' and 'RM1-80/RM3-20' samples are in the margin of the minimum required specifications of base materials used for high volume unbound granular roads while others are lower than that the minimum requirement.

키워드

참고문헌

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피인용 문헌

  1. Effects of reclaimed asphalt materials on geotechnical characteristics of recycled concrete aggregates as a pavement material 2019, https://doi.org/10.1080/14680629.2017.1417151
  2. Use of recycled fillers in bituminous mixtures for road pavements vol.159, 2018, https://doi.org/10.1016/j.conbuildmat.2017.10.105
  3. Strength criterion of plain recycled aggregate concrete under biaxial compression vol.16, pp.2, 2015, https://doi.org/10.12989/cac.2015.16.2.209
  4. Evaluation of Mechanical Properties of Recycled Material for Utilization in Asphalt Mixtures vol.7, pp.8, 2017, https://doi.org/10.3390/app7080763
  5. Experimental and correlational study on the utilisation of RCA as an alternative coarse aggregate in asphalt mixtures vol.15, pp.2, 2017, https://doi.org/10.1080/14488353.2017.1385964
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  8. Experimental study on rock-concrete joints under cyclically diametrical compression vol.17, pp.6, 2014, https://doi.org/10.12989/gae.2019.17.6.553
  9. Crushing treatment on recycled aggregates to improve their mechanical behaviour for use in unbound road layers vol.263, pp.None, 2014, https://doi.org/10.1016/j.conbuildmat.2020.120517
  10. Mechanical And Physical Properties Of Recycled Concrete Aggregates For Road Base Materials vol.1973, pp.1, 2014, https://doi.org/10.1088/1742-6596/1973/1/012236
  11. Performance of composite geogrid reinforced unpaved pavements under cyclic loading vol.304, pp.None, 2014, https://doi.org/10.1016/j.conbuildmat.2021.124570
  12. Evaluating the Tensile Properties of Geogrids Using the Particle Image Velocimetry Technique vol.33, pp.11, 2014, https://doi.org/10.1061/(asce)mt.1943-5533.0003909