International Journal of Concrete Structures and Materials

  • 제4권1호
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  • Pages.3-8
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  • 2010
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  • 1976-0485(pISSN)
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  • 2234-1315(eISSN)
한국콘크리트학회 (Korea Concrete Institute)
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Exploiting the Potentials of Rice Husk Ash as Supplement in Cement for Construction in Nigeria

  • 투고 : 2009.07.08
  • 심사 : 2010.03.30
  • 발행 : 2010.06.30
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초록

This paper present the results of investigation on the use of rice husk ash as a partial substitute for cement in construction. One hundred and eighty specimens of concrete cubes were cast. 0, 5, 10, 15, and 20% partial replacement of cement with rice husk ash were carried at 1:2:4 mixes by weight with 0.60, 0.65, 0.70 water/cement ratio. The results indicated that compressive strengths of cubes at 0.6, water/cement were higher than 0.65 and 0.70. Also 5% partial replacement cement with rice husk ash at $28^{th}$ day average compressive strength value of $25.4\;N/mm^2$ compared well with 0% partial replacement of cement with rice husk ash of $26.28\;N/mm^2$. This shows that at 5% partial replacement of cement with rice husk ash can be used for structural concrete and at 15% replacement or more it can be used for non - structural construction works or light weight concrete construction. The cost analysis shows substantial amount of savings for the country.

키워드

참고문헌

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피인용 문헌

  1. Ashes of Biogenic Wastes—Pozzolanicity, Prospects for Use, and Effects on Some Engineering Properties of Concrete vol.04, pp.09, 2013, https://doi.org/10.4236/msa.2013.49064
  2. Mechanical Behavior of Concrete Modified by Replacement of Cement by Rice Husk Ash vol.59, pp.spe2, 2016, https://doi.org/10.1590/1678-4324-2016161072
  3. Evaluation of Pozzolanic Activity for Effective Utilization of Dredged Sea Soil vol.11, pp.4, 2017, https://doi.org/10.1007/s40069-017-0215-6