• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of building material having water movement sensing function

Research Project

Project/Area Number 15K14062
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Building structures/Materials
Research InstitutionUtsunomiya University

Principal Investigator

Fujimoto Satoshi  宇都宮大学, 地域デザイン科学部, 准教授 (30467766)

Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsモニタリング / 維持管理 / 建築物 / センシング / 計測技術 / 移動現象 / 水 / インピーダンス / コンクリート / センサ / 水分移動 / 既存建築物 / 含水率 / 建築材料 / 水分検知 / 含水 / 静電容量 / 流下 / 流入 / 劣化 / 雨水 / 鉄筋コンクリート / 材料開発 / 耐久性 / 検知
Outline of Final Research Achievements

This research project aims to develop a new material having sensing function for water movement. In this project, following results are achieved; (1) By molding steel bars and measuring the AC impedance, a material having the function of detecting water movement on the surface or far from the bar is developed, (2) Interesting behavior inside crack of concrete is found dependent on the concrete absorption properties, (3) A procedure to estimate moisture content at different temperature of real concrete structure is developed, (4) equivalent circuit model to analyze different age and water content is investigated, and (5) holistic measurement system for water movement is proposed, including a developed water sensing function method as well as other measurement method developed by the author.

Academic Significance and Societal Importance of the Research Achievements

我が国の建築物ストックは膨大であり,効率的な維持管理が求められている。本研究は,効率的な維持管理を実現するために,従来の電子的センサに代わって,センシング機能付与型材料の開発という新たな技術に挑戦したものである。実建築物のような長期にわたって使用できる電子センサは入手困難であることを踏まえ,実建築物へ適用できる計測技術の要求条件を明らかにした点,また,分析を踏まえて劣化外力となる水の移動現象を計測できる要素技術を開発し,温度等の補正手法を構築した点で社会的な意義が大きい。また,付随的な成果としては,ある種の条件下でひび割れ内の水移動現象に特異な現象を発見した点も今後の学術的な発展に寄与する。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (7 results)

All 2019 2018 2017

All Journal Article (6 results) (of which Peer Reviewed: 1 results) Presentation (1 results)

  • [Journal Article] コンクリートの交流インピーダンス計測における含水率と温度の相互作用に関する分析2019

    • Author(s)
      直井聡人, 藤本郷史, 原紳
    • Journal Title

      日本建築学会学術講演梗概集

      Volume: -

    • Related Report
      2018 Annual Research Report
  • [Journal Article] CPE を含む等価回路モデルを用いたセメントペーストの電気化学的特性の分析2019

    • Author(s)
      小口崚平, 藤本郷史
    • Journal Title

      日本建築学会学術講演梗概集

      Volume: -

    • Related Report
      2018 Annual Research Report
  • [Journal Article] LOWER WATER-TO-CEMENT-RATIO MAY INDUCE HIGHER DETERIORATION WHEN CONCRETE IS CRACKED - EXPERIMENTAL INVESTIGATION AND MECHANISM -2018

    • Author(s)
      Satoshi Fujimoto, Yifter Simon Seifu
    • Journal Title

      Proc. fib congress

      Volume: -

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Influence of various factors in mix design on pore structure and wettability inside mortar2018

    • Author(s)
      Yifter Simon Seifu, Satoshi Fujimoto
    • Journal Title

      Proceeding of JCI annual meeting Tochigi Division

      Volume: 1 Pages: 1-2

    • Related Report
      2017 Research-status Report
  • [Journal Article] Influence of absorption rate of concrete on rainwater flow inside inclined concrete cracks2017

    • Author(s)
      Yifter Simon Seifu, Satoshi Fujimoto
    • Journal Title

      Proceedings of AIJ annual meeting, 2018

      Volume: A1 Pages: 789-790

    • Related Report
      2017 Research-status Report
  • [Journal Article] Difference in mix proportion of concrete induces different water movement inside cracks2017

    • Author(s)
      Satoshi Fujimoto
    • Journal Title

      Proceedings of The 13rd Korea/Japan Joint Symposium on Building Materials and Construction

      Volume: 12 Pages: 299-303

    • Related Report
      2017 Research-status Report
  • [Presentation] 交流インピーダンス法を用いたセメントペーストの水和組織の形成と含水率変化の観察2017

    • Author(s)
      直井 聡人
    • Organizer
      JCI栃木支部研究発表会
    • Place of Presentation
      小山市生涯学習センター
    • Related Report
      2016 Research-status Report

URL: 

Published: 2015-04-16   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi