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Study on Fire Resistance Characteristics of Fire Protection Materials of High water content

Research Project

Project/Area Number 11650232
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Thermal engineering
Research InstitutionTokyo Metropolitan University

Principal Investigator

ASAKO Yutaka  Tokyo Metropolitan University, Graduate school of Engineering, 工学研究科, 教授 (20094253)

Co-Investigator(Kenkyū-buntansha) YAMAGUCHI Yoshiyuki  Tokyo Metropolitan University, Graduate school of Engineering, 工学研究科, 助手 (10244419)
Project Period (FY) 1999 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2000: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1999: ¥3,000,000 (Direct Cost: ¥3,000,000)
KeywordsFire protection material / High water content / Super absorbent polymer / Calcium chloride solution / Gel / Fire resistance test
Research Abstract

It is well known that moist fire protection materials show good fire resistance characteristics. For this reason, these materials are usually made of mixtures of cement mortar and high-water content materials such as silica gels or moist perlites. The latent heat of water plays an important role in the resistance of heat propagation in these materials. Recently, a fire resistance test on a perlite-mortar mixed with the super-absorbent polymer gel which absorbed the calcium chloride solution have been conducted and it was concluded from the temperature response of this fire protection material that the tested material have very good fire resistance characteristics. However, the composition of the tested material was fixed at the mixing ratio of gels and perlite-mortar, V_<gel>/V_<pm>=1, and the mixing ratio of perlite and cement, V_p/V_c=1. These mixing ratios may affect on the fire resistance characteristics and there may exist the optimum mixing ratios. This is the motivation of the p … More resent study.
In this study, to find the fire resistance characteristics and parameters dominating the fire resistance characteristics, the thermal conductivity and the water content were measured for materials whose mixing ratios were combination of V_p/V_c=1 and 3 & V_<gel>/V_<pm>=1 and 2. And using the measured thermal properties of the test materials, numerical simulations for the fire resistant test were conducted. The main conclusions obtained are :
(1) Both the water content and the effective thermal conductivity are important parameters for the fire resistance material. And the mass fraction of free water in the test material increases with increasing the mixing ratio of the gels and perlite-mortar.
(2) In the high temperature range above 373 K, the effective thermal conductivity decreases with increasing the mixing ratio of perlite and cement. And the effective thermal conductivity decreases with increasing the mixing ratio of gel and perlite-mortar.
(3) The longest fire resistance time among the test materials is 330 minutes. Less

Report

(3 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • Research Products

    (7 results)

All Other

All Publications (7 results)

  • [Publications] Z.F.Jin,Y.Asako,Y.Yamaguchi,M.Harada: "Fire Resistance Test of a Fire Protection Material of High Water Content"International Journal of Heat and Mass Transfer. 43-24. 4395-4404 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.Asako,T.Otaka,Y.Yamaguchi: "Fire Resistance Characteristics of Fire Protection Materials of High Water Content"Proceedings of the ASME Heat transfer Division-2000. HTD-Vol.366-5. 35-40 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Z.F.Jin, Y.Asako, Y.Yamaguchi, M.Harada: "Fire Resistance Test of a Fire Protection Material of High Water Content"International Journal of Heat and Mass Transfer. 43-24. 4395-4404 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.Asako, T.Otaka, Y.Yamaguchi: "Fire Resistance Characteristics of Fire Protection Materials of High Water Content"Proceedings of the ASME Heat transfer Division-2000 HTD-. Vol.366-5. 35-40 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Z.F.Jin,Y.Asako,Y.Yamaguchi,M.Harada: "Fire Resistance Test of a Fire Protection Material of High Water Content"International Journal of Heat and Mass Transfer. 43-24. 4395-4404 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Y.Asako,T.Otaka,Y.Yamaguchi: "Fire Resistance Characteristics of Fire Protection Materials of High Water Content"Prpceedings of the ASME Heat transfer Division-2000. HTD-Vol.366-5. 35-40 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 金 招芬,浅古 豊,山口義幸,原田 稔: "吸水性樹脂を保水材に用いた耐火被覆材の耐火性能"日本機械学会論文集(B編). 65-639. 3734-3739 (1999)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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