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1992 Fiscal Year Final Research Report Summary

Synthetic Study on Self-Placeable Concrete

Research Project

Project/Area Number 03302044
Research Category

Grant-in-Aid for Co-operative Research (A)

Allocation TypeSingle-year Grants
Research Field コンクリート工学・土木材料・施工
Research InstitutionUniversity of Tokyo

Principal Investigator

OKAMURA Hajime  Univ.of Tokyo, Fac. of Eng., Prof., 工学部, 教授 (30010664)

Co-Investigator(Kenkyū-buntansha) OZAWA Kazumasa  Univ.of Tokyo,Fac,of Eng.,Assoc.Prof., 工学部, 助教授 (80194546)
KUNISHIMA Masahiko  Univ.of Tokyo,Fac.of Eng.,Prof., 工学部, 教授 (00201468)
UOMOTO Taketo  Univ.of Tokyo,I.I.S.,Prof., 生産技術研究所第5部, 教授 (80114396)
DAIMON Masaki  Tokyo Inst.of Tech.,Fac.of Eng.,Prof., 工学部, 教授 (10016579)
TOMOZAWA Fuminori  Univ.of Tokyo,Fac.of Eng.,Prof., 工学部, 教授 (50211404)
Project Period (FY) 1991 – 1992
KeywordsSelf-Placeable / Cementitious Material / Material Design System / Manufacturing and Control System / Construction System
Research Abstract

Experimental and analytical studies were carried out in order to develop concrete for self- placeable concrete and to establish the manufacturing and construction system for the concrete. Through this research, following results were obtained.
1.Development of cementitious material
Testing methods of the qualities of cementitious material were proposed. Using these methods,many kinds of powder material were evaluated. It was concluded that the moderate heat cement is suitable as the standard powder material for self-placeable concrete. On the other hand,it was pointed out that the deformability of concrete depends on the combination of the cement and the super plasticizer.
2.Development of material design system
Material design system for concrete was established. The system is composed of the mix design system and the durability check system.
3.Development of manufacturing system
Control system of the filling capacity of concrete by using two-step mixing was established based on the investigation of the mechanism of mixing. In the upper mixer,surface water of sand is adjusted using the torque of mixer. In the lower mixser, slump flow and funnel passing time are controlled. Filling capacity of concrete are successfully controlled by this system.
4.Development of construction system
It was clarified that the construction system can be rationalized by the improvement of construction method which includes the application of self-placeable concrete and the decision of structural type. Confirmation method of filling of concrete to the structure using infrared rays was developed. Appraisal system of new construction technology,which includes self-placeable concrete,was established from the viewpoint of constructability,durability(quality) of structure and economizability.

  • Research Products

    (30 results)

All Other

All Publications (30 results)

  • [Publications] 魚本 健人,渡部 正: "サーモグラフィーによるコンクリート打込み時の欠陥検出法に関する研究" サーモグラフィー法に関するコンファレンス論文集,. 49-54 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 渡部 正,魚本 健人: "型わく外面の熱赤外線画像によるコンクリートの打込み管理手法に関する基礎研究" 土木学会論文集,. No.435,VI-15,. 121-128 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] B.Stitmannaithum and T.Uomoto: "Electrical Power Consumption During Mixing of Solid Particles" Proc.of JSCE.No.442,V-16,. 229-236 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 渡部 正,魚本 健人: "ミキサでの練りまぜ時間とトラックアジテータ車での撹拌時間がコンクリート品質の変化に及ぼす影響" コンクリートの製造システムに関するシンポジウム論文集,. 9-14 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 遠藤 秀紀,枝松 良展,小沢 一雅,岡村 甫: "ハイパフォーマンスコンクリート用セメントのフレッシュ性状に関する品質管理試験方法," 第47回セメント技術大会,. (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 枝松 良展,遠藤 秀紀,小沢 一雅,岡村 甫: "ハイパフォーマンスコンクリートの硬化後の品質に関するセメントの品質管理試験方法," 第47回セメント技術大会,. (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 岡村 甫,小沢 一雅: "ハイパフォーマンスコンクリートによる施工の合理化" 新都市開発,. Vol.30,No.8,. 2-9 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 小沢 一雅,白木 久,藤木 輝己: "締固め不要コンクリートの品質に及ぼす練りまぜ因子の影響" コンクリートの製造システムに関するシンポジウム論文集. 29-36 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 小沢 一雅,岡村 甫: "材料の変動及び計量誤差がコンクリートの品質に及ぼす影響" コンクリートの製造システムに関するシンポジウム論文集. 75-79 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 坂田 昇,伊藤 孔一,若松 岳,小沢 一雅,岡村 甫: "フレッシュコンクリートの充填性評価のためのロート試験" 土木学会第47回年次学術構演会構演概要集,. 第V部,. 566-567 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 加藤 和彦,申 鉉穣,國島 正彦: "締固め不要コンクリートの施工性に関する比較研究" 土木学会論文集,. 第VI部門. (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Kato,H.Y.Shin and M.Kunishima: "A Comparative Study on the Constructability of Self-Placeable Concrete" International Conference Concrete 2000,Economic and Durabile Construction Through Excellence,. September. (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 岡村 甫,小沢 一雅: "締固め不要コンクリートの可能性と課題" コンクリート工学. Vol.30,No.2. 5-14 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Ozawa,S.Tangtermsirikul,K.Maekawa: "Role of Powder Materials on the Filling Capacity of Fresh Concrete" ACI International Conference on Fly Ash,Silica Fume,Slag and Natural Pozzolans in Concrete,Istanbul,. 121-137 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 岡村 甫,小沢 一雅: "締固め不要への挑戦ーコンクリート工事の近代化をめざしてー" セメント・コンクリート,. No.539,. 2-9 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tadashi WATANABE and Taketo UOMOTO: "Fundamental Study on Real Time Moitoring of Concrete Placing by Thermography" Proc. of JSCE. No.435/VI-15. 121-128 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hajime OKAMURA and Kazumasa OZAWA: "Challenge to the Development of High Performance Concrete-toward the Modernization for Construction of Concrete Structures-" Cement & Concrete. No.539. 2-9 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hajime OKAMURA and Kazumasa OZAWA: "Prospects and Problems of Self-Placeable Concrete" Concrete Journal. Vol.30,No.2. 5-14 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Boonchai STITMANNAITHUM and Taketo UOMOTO: "Electrical Power Consumption during Mixing of Solid Particles" Proc. of JSCE. No.442/V-16. 229-236 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Taketo UOMOTO and Tadashi WATANABE: "Study on Method to Find out Defects of Concrete Structure in Placing of Concrete by Thermography" Proc. of Conf. on Thermography. 49-54 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tadashi WATANABE and Taketo UOMOTO: "Effect of Mixing Time and Agitation Time on Properties of Concrete" Proc. of JCI Symp. on Manufacturing System for Ready-Mixed Concrete. 9-14 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kazumasa OZAWA, Somnuk TANGTERMSIRIKUL and Koichi MAEKAWA: "Role of Power Materials on the Filling Capacity of Fresh Concrete" ACI Int.Conf. on Fly Ash,Sillica Fume, Slag and Natural Pozzolans in Concrete. 121-137 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kazumasa OZAWA, Hisashi SHIRAKI and Terumi FUJIKI: "Effect of Mixing Factors on the Properties of Self-Placeable Concrete" Proc. of JCI Symp. on Manufacturing System for Ready-Mixed Concrete. 29-36 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kazumasa OZAWA and Hajime OKAMURA: "Influences of Variation Properties and Weighing Error of Materials on Properties of Concrete" Proc. of JCI Symp. on Manufacturing System for Ready-Mixed Concrete. 75-79 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hajime OKAMURA and Kazumasa OZAWA: "Rationalization of Construction by Using High Reformance Concrete" "SHIN-TOSHI-KAIHATSU". Vol.30,No.8. 2-9 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Noboru SAKATA, Koichi ITO, Takeshi WAKAMATSU, Kazumasa OZAWA and Hajime OKAMURA.: "A Funnel Test for Evaluation of Filling Capacity of Fresh Concrete" The 47th Annual Conf. of JSCE. Part V. 566-567 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kazuhiko KATO, Hyun-Yang SHIN and Masahiko KUNISHIMA: "A Comparative Study on the Constructability of Self-Placeable Concrete" Proc. of JSCE. Part VI. (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kazuhiko KATO, Hyun-Yang SHIN and Masahiko KUNISHIMA: "A Comparative Study on the Constructability of Self-Placeable Concrete" Int. Conf. on Economic and Durable Construction through Excellence. (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hideki ENDO, Yoshinobu EDAMATSU, Kazumasa OZAWA and Hajime OKAMURA: "Testing Method for Quality control of Cement Concerning with Properties of Fresh High Performance Concrete" The 46th Annual Meeting of CAJ. (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yoshinobu EDAMATSU, Hideki ENDO, Kazumasa OZAWA and Hajime OKAMURA: "Testing Method for Quality Control of Cement Concerning with Properties of High Performance Concrete" The 46th Annual Meeting of CAJ. (1993)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1994-03-24  

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