Computers and Concrete

  • 제24권1호
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  • Pages.1-6
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  • 2019
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

The effect of high-temperature on foamed concrete

  • Canbaz, Mehmet (Eskisehir Osmangazi University, Civil Engineering Department) ;
  • Dakman, Hafid (Eskisehir Osmangazi University, Civil Engineering Department) ;
  • Arslan, Baris (Eskisehir Osmangazi University, Civil Engineering Department) ;
  • Buyuksungur, Arda (Middle East Technical University, Biotechnology Research Lab.)
  • 투고 : 2010.05.10
  • 심사 : 2019.04.30
  • 발행 : 2019.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

Within the scope of this study, the foam solution was prepared by properly mixing sulfonate based foam agent with water. Furthermore, this solution was mixed with the mixture of fine sand, cement, and water to produce foamed concrete. The mixture ratios which are the percentage of foam solution used in foam concrete were chosen as 0, 20, 40 and 60% by vol. After these groups reached 28 days of strength, they were heated to 20, 100, 400 and $700^{\circ}C$ respectively. Afterward, high-temperature effects on the foamed concrete were obtained by employing physical and mechanical properties tests. Additionally, SEM (scanning electron microscope) and EDX (energy-dispersive X-ray spectroscopy) tests were employed to analyze the microstructure, and ${\mu}-CT$ (micro computed tomography) images were used to reconstruct 3-D models of the heat-treated specimens. Then, these models are analyzed to examine the void structures and the changes in these structures due to the high temperatures. The study has shown that the void structures reduce the high-temperature effects and the foam solution could be mixed with concrete up to 40 % by vol. where the high strength of foamed concrete is non-mandatory.

키워드

참고문헌

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피인용 문헌

  1. Flexural strength of concrete-galvalume composite beam under elevated temperatures vol.27, pp.1, 2019, https://doi.org/10.12989/cac.2021.27.1.013
  2. Performance evaluation of natural fiber reinforced high volume fly ash foam concrete cladding vol.11, pp.2, 2019, https://doi.org/10.12989/acc.2021.11.2.151