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

Development of lightweight, high-performance zonotolite-based building materials

Research Project

Project/Area Number 20K04787
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 23010:Building structures and materials-related
Research InstitutionMuroran Institute of Technology

Principal Investigator

HAMA Yukio  室蘭工業大学, 大学院工学研究科, 教授 (70238054)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsゾノトライト / オートクレーブ法 / 軽量気泡コンクリート / 細孔構造 / 乾燥収縮 / 炭酸化 / 耐熱性 / 撥水性 / オートクレーブ養生 / 軽量高性能建材 / 水熱合成
Outline of Research at the Start

セメントを出発原料としたゾノトライトの工業的合成は不可能であるといわれていたが,申請者らは先行研究により前水和方式でセメント中のアルミ成分の先行反応後の水熱合成によりゾノトライトを生成させ得る可能性を把握している。本研究では,この前水和方式を格段に進歩させ,工業的に安価にゾノトライトを合成する技術を確立するために,前水和方式によるゾノトライトの生成メカニズムを明らかにして,最終的にゾノトライト系軽量高性能建材を開発・実用化することを目指す工学的に独自性・創造性の高い研究である。

Outline of Final Research Achievements

The objective of this study was to establish the optimum synthesis conditions for the industrial hydrothermal synthesis of zonotolite using cement as a starting material, and to understand the basic properties of zonotolite-based lightweight hardened materials. As a result, it was clarified that the formation of zonotolite is a transition from low crystallinity C-S-H, tobamolite crystals, and zonotolite crystals, in that order, and the optimum hydrothermal synthesis conditions were found. The compressive strength, drying shrinkage, heat resistance, and carbonation shrinkage properties of the hardened compact were confirmed. Although the formation of zonotolites causes a shift in the pore size distribution toward the coarse size and an increase in shrinkage, it was found that silicone oil can provide water repellency and resistance to carbonation even under high temperature conditions of 230°C by using the chemical vapor deposition (CVD) method.

Academic Significance and Societal Importance of the Research Achievements

本研究の学術的意義は,従来は不可能とされていたセメントを出発原料としたゾノトライトの工業的合成を,セメント中のアルミ成分の先行反応後にオートクレーブ養生を行う前水和方式により可能とし,そのメカニズムと最適条件を見出した点と耐熱温度が200℃程度のシリコーンオイルで230℃の高温処理を行うゾノトライトの製造時に化学気相成長法(CVD法)でシリコーンオイルによる撥水性の付与が可能で,炭酸化抵抗性の向上に寄与することを明らかにした点である。これにより,従来のALCよりも耐熱性が高く耐炭酸化性に優れた新しい建築材料を提供できるようになることは社会的にも意義が大きい。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (10 results)

All 2023 2022 2021 2020

All Journal Article (6 results) (of which Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (4 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] 化学気相成長法によるゾノトライト系軽量硬化体の炭酸化抑制手法の確立2023

    • Author(s)
      新堀智也,加藤卓巳,今澤公一,濱幸雄
    • Journal Title

      日本建築学会大会学術講演梗概集

      Volume: -

    • Related Report
      2022 Annual Research Report
  • [Journal Article] EFFECT OF PORE STRUCTURE AND RIGIDITY OF HARDENED BODY ON DRYING SHRINKAGE BEHAVIOR OF XONOTLITE BASED LIGHTWEIGHT CONCRETE2022

    • Author(s)
      高村光祐,今澤公一,濱幸雄
    • Journal Title

      Cement Science and Concrete Technology

      Volume: 75 Issue: 1 Pages: 426-433

    • DOI

      10.14250/cement.75.426

    • ISSN
      0916-3182, 2187-3313
    • Year and Date
      2022-03-31
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 疎水性材料によるゾノトライト系軽量硬化体の炭酸化抑制効果2022

    • Author(s)
      新堀智也,國本恒平,今澤公一,濱幸雄
    • Journal Title

      日本建築学会大会学術講演梗概集

      Volume: - Pages: 675-676

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Experimental investigation of effective carbonation resistance of xonotlite-based lightweight material using hydrophobic material2022

    • Author(s)
      Tomoya SHINBORI, Nguyen Xuan VAN, Yukio HAMA
    • Journal Title

      Proceedings of International symposium on Paformance Inprovement of Concrete for Long time Service life

      Volume: - Pages: 70-75

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Influence of hydrothermal synthesis and carbonation on physical properties of xonotlite-based lightweight material2022

    • Author(s)
      Nguyen Duc Van, Kouichi Imasawa, Yukio Hama
    • Journal Title

      Construction and Building Materials

      Volume: 321 Pages: 126328-126328

    • DOI

      10.1016/j.conbuildmat.2022.126328

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] CHANGE IN BASIC PROPERTIES OF XONOTLITE BASED LIGHTWEIGHT CONCRETE DUE TO CARBONATION2021

    • Author(s)
      高村光祐,今澤公一,金志訓,濱幸雄
    • Journal Title

      Cement Science and Concrete Technology

      Volume: 74 Issue: 1 Pages: 396-403

    • DOI

      10.14250/cement.74.396

    • NAID

      130008009152

    • ISSN
      0916-3182, 2187-3313
    • Year and Date
      2021-03-31
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 化学気相成長法によるゾノトライト系軽量硬化体の炭酸化抑制手法の確立2023

    • Author(s)
      新堀智也,加藤卓巳,今澤公一,濱幸雄
    • Organizer
      日本建築学会大会学術会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 疎水性材料によるゾノトライト系軽量硬化体の炭酸化抑制効果2022

    • Author(s)
      新堀智也,國本恒平,今澤公一,濱幸雄
    • Organizer
      日本建築学会大会学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Experimental investigation of effective carbonation resistance of xonotlite-based lightweight material using hydrophobic material2022

    • Author(s)
      Tomoya SHINBORI, Nguyen Xuan VAN, Yukio HAMA
    • Organizer
      International symposium on Paformance Inprovement of Concrete for Long time Service life
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ゾノトライト系軽量硬化体の炭酸化前後の乾燥収縮挙動2020

    • Author(s)
      高村光佑,今澤公一,金志訓,濱幸雄
    • Organizer
      日本建築学会大会学術講演梗概集(関東)
    • Related Report
      2020 Research-status Report

URL: 

Published: 2020-04-28   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi