Advances in concrete construction

  • 제5권1호
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  • Pages.1-15
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  • 2017
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  • 2287-5301(pISSN)
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  • 2287-531X(eISSN)
테크노프레스 (Techno-Press)
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DOI QR Code

Elaboration and characterization of fiber-reinforced self-consolidating repair mortar containing natural perlite powder

  • Benyahia, A. (Geomaterials Laboratory, Hassiba Benbouali University of Chlef) ;
  • Ghrici, M. (Geomaterials Laboratory, Hassiba Benbouali University of Chlef) ;
  • Mansour, M. Said (Geomaterials Laboratory, Hassiba Benbouali University of Chlef) ;
  • Omran, A. (Department of Civil Engineering, University of Sherbrooke)
  • 투고 : 2016.12.21
  • 심사 : 2017.02.15
  • 발행 : 2017.02.25
⟨ 이전 논문 다음 논문 ⟩

초록

This research project aimed at evaluating experimentally the effect of natural perlite powder as an alternative supplementary cementing material (SCM) on the performance of fiber reinforced self-consolidating repair mortars (FR-SCRMs). For this purpose, four FR-SCRMs mixes incorporating 0%, 10%, 20%, and 30% of natural perlite powder as cement replacements were prepared. The evaluation was based on fresh (slump flow, flow time, and unit weight), hardened (air-dry unit weight, compressive and flexural strengths, dynamic modulus of elasticity), and durability (water absorption test) performances. The results reveal that structural repair mortars confronting the performance requirements of class R4 materials (European Standard EN 1504-3) could be designed using 10%, 20%, and 30% of perlite powder as cement substitutions. Bonding results between repair mortars containing perlite powder and old concrete substrate investigated by the slant shear test showed good interlocking justifying the effectiveness of these produced mortars.

키워드

참고문헌

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피인용 문헌

  1. Behaviour of self compacting repair mortars based on natural pozzolana in hot climate vol.6, pp.3, 2018, https://doi.org/10.12989/acc.2018.6.3.285
  2. Correlation between compressive strength and other properties of engineered cementitious composites with high-volume natural pozzolana vol.19, pp.5, 2017, https://doi.org/10.1007/s42107-018-0050-3
  3. Rehabilitation of normal and self-compacted steel fiber reinforced concrete corbels via basalt fiber vol.6, pp.5, 2017, https://doi.org/10.12989/acc.2018.6.5.423
  4. Influence of substrate roughness and bonding agents on the bond strength between old and new concrete vol.12, pp.1, 2021, https://doi.org/10.12989/acc.2021.12.1.033