Computers and Concrete

  • 제18권5호
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  • Pages.937-950
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  • 2016
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Analytical model of expansion for electric arc furnace oxidizing slag-containing concrete

  • Shu, Chun-Ya (Department of Civil Engineering, National Kaohsiung University of Applied Sciences) ;
  • Kuo, Wen-Ten (Department of Civil Engineering, National Kaohsiung University of Applied Sciences) ;
  • Juang, Chuen-Ul (Department of Civil Engineering, National Kaohsiung University of Applied Sciences)
  • 투고 : 2016.03.31
  • 심사 : 2016.06.18
  • 발행 : 2016.11.25
⟨ 이전 논문 다음 논문 ⟩

초록

This study applied autoclave expansion and heat curing to accelerate the hydration of concrete and investigated how these methods affect the expansion rate, crack pattern, aggregate size effect, and expansion of electric arc furnace oxidizing slag (EOS)-containing concrete. An expansion prediction model was simulated to estimate the expansion behavior over a long period and to establish usage guidelines for EOS aggregates. The results showed that the EOS content in concrete should range between 20% and 30% depending on the construction conditions, and that coarse aggregates with a diameter of ${\geq}4.75-mm$ are not applicable to construction engineering. By comparison, aggregates with a size of 1.18-0.03 mm resulted in higher expansion rates; these aggregates can be used depending on the construction conditions. On Day 21, the prediction model attained a coefficient of determination ($R^2$) of at least 0.9.

키워드

과제정보

연구 과제 주관 기관 : Ministry of Science and Technology of Taiwan

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피인용 문헌

  1. Prediction of expansion of electric arc furnace oxidizing slag mortar using MNLR and BPN vol.20, pp.1, 2016, https://doi.org/10.12989/cac.2017.20.1.111
  2. Properties of concrete incorporating granulated blast furnace slag as fine aggregate vol.5, pp.5, 2017, https://doi.org/10.12989/acc.2017.5.5.437
  3. Feasibility and Characterization Mortar Blended with High-Amount Basic Oxygen Furnace Slag vol.12, pp.1, 2016, https://doi.org/10.3390/ma12010006
  4. Research Progress on Skid Resistance of Basic Oxygen Furnace (BOF) Slag Asphalt Mixtures vol.13, pp.9, 2020, https://doi.org/10.3390/ma13092169
  5. Expansion inhibition of steel slag in asphalt mixture by a surface water isolation structure vol.21, pp.8, 2016, https://doi.org/10.1080/14680629.2019.1601588