Diversified Production of Recycled Aggregate Concrete Mixture with the Addition of Single and Hybrid Fibers

 
 
 
  • Abstract
  • Keywords
  • References
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  • Abstract


    The low strength property of recycled concrete aggregates (RCAs) limits its widespread application in the production of high-strength recycled aggregate concrete (RAC). In this study, RCA properties were improved prior to its incorporation into an RAC mixture through surface treatment. This mixture was subsequently diversified considering the benefits of adding various fiber-reinforced systems to enhance RAC performance. Two types of short discrete synthetic fibers, namely, polyolefin and polypropylene, were added in single and hybrid forms. This study aimed to investigate the effectiveness of the diversified modification of RAC mixture production on the mechanical strength of the resulting RAC. Various properties of the modified RAC were analyzed. Although the modified RAC mixture using treated RCA significantly enhanced the mechanical strength of this RAC, the diversification of the RAC mixture with additional polyolefin and polypropylene fibers, particularly in the hybrid form, further optimized the RAC performance.

     


  • Keywords


    Hybrid fiber; polyolefin fiber; polypropylene fiber; recycled aggregate concrete; treated recycled concrete aggregate.

  • References


      [1] S. Ismail, et al., "Sustainable Aggregates: The Potential and Challenge for Natural Resources Conservation," Procedia - Social and Behavioral Sciences, vol. 101, pp. 100-109, 2013.

      [2] S. Marinkovic, et al., "Comparative environmental assessment of natural and recycled aggregate concrete," Waste Management, vol. 30, pp. 2255-2264, 2010.

      [3] A. K. Padmini, et al., "Influence of parent concrete on the properties of recycled aggregate concrete," Construction and Building Materials, vol. 23, pp. 829-836, 2009.

      [4] V. W. Y. Tam, et al., "Microstructural analysis of recycled aggregate concrete produced from two-stage mixing approach," Cement and Concrete Research, vol. 35, pp. 1195-1203, 2005.

      [5] S. Ismail and M. Ramli, "Effect of Different Moisture States of Surface-Treated Recycled Concrete Aggregate on Properties of Fresh and Hardened Concrete," International Journal of Civil, Architectural, Structural and Construction Engineering vol. 8, pp. 65-71, 2014.

      [6] W. H. Kwan, et al., "Influence of the amount of recycled coarse aggregate in concrete design and durability properties," Construction and Building Materials, vol. 26, pp. 565-573, 2012.

      [7] M. Etxeberria, et al., "Influence of amount of recycled coarse aggregates and production process on properties of recycled aggregate concrete," Cement and Concrete Research, vol. 37, pp. 735-742, 2007.

      [8] S. Ismail and M. Ramli, "Mechanical strength and drying shrinkage properties of concrete containing treated coarse recycled concrete aggregates," Construction and Building Materials, vol. 68, pp. 726-739, 2014.

      [9] N. Banthia and R. Gupta, "Hybrid fiber reinforced concrete (HyFRC): fiber synergy in high strength matrices," Materials and Structures vol. 37, pp. 707-716, 2004.

      [10] D. C. Teychenné, et al., "Design of normal concrete mixes," Building Research Establishment, Watford, UK1997.

      [11] C. X. Qian and P. Stroeven, "Development of hybrid polypropylene-steel fibre-reinforced concrete," Cement and Concrete Research vol. 30, pp. 63–69, 2000.

      [12] A. Sivakumar, "Influence of hybrid fibres on the post crack performance of high strength concrete: Part I experimental investigations," Journal of Civil Engineering and Construction Technology, vol. 2, pp. 147-159, 2011.

      [13] A. Bentur and S. A. S. Akers, "The microstructure and ageing of cellulose fibre reinforced cement composites cured in a normal environment," International Journal of Cement Composites and Lightweight Concrete, vol. 11, pp. 99-109, 1989.

      [14] H. Wu, et al., "Study on Micro-Structure and Durability of Fiber Concrete," Research Journal of Applied Sciences, Engineering and Technology, vol. 5, pp. 659-664, 2013.

      [15] D. L. Nguyen, et al., "Size effect on flexural behavior of ultra-high-performance hybrid fiber-reinforced concrete," Composites Part B: Engineering, vol. 45, pp. 1104-1116, 2013.

      [16] R. Solís-Carcaño and E. I. Moreno, "Evaluation of concrete made with crushed limestone aggregate based on ultrasonic pulse velocity," Construction and Building Materials, vol. 22, pp. 1225-1231, 2008.


 

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Article ID: 15950
 
DOI: 10.14419/ijet.v7i3.11.15950




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