Development of Loading Devices for Uniaxial Tension on Strain Hardening Cementitious Composites

ひずみ硬化セメント複合材料の一軸引張試験用治具の開発に関する研究

Strain-Hardening Cementitious Composites (SHCC) show very ductile behavior under tensile stress. These excellent new materials can be used to make very ductile as well as very durable structural members. To further the application of this new type of material to structural members, it is essential to assess more properly its tensile mechanical performance using suitably sized specimens. The test methods proposed so far, however, are limited to either uniaxial tension tests using rather small and thin geometries, or an indirect assessment using bending tests. The purpose of the present study is to develop loading devices for uniaxial tension tests on specimens of SHCC with the section size of 100x100 mm2. The effectiveness of the developed loading devices is examined through a series of experiments. Furthermore, the influence of the boundary conditions is critically discussed.ひずみ硬化セメント複合材料（以下，SHCC）の優れた特性を生かして実構造物に適用していくには，引張性状評価法の標準化が重要である。一軸引張性状を評価するための試験方法はこれまでにも各所で提案されているが，そのほとんどは試験体寸法が小さいものや，曲げ試験による間接評価に留まっている。構造部材中のSHCCの性能を適切に再現し評価するためには，断面を十分に大きくして部材断面内の繊維配向により近い状態とした試験体での引張性状評価手法を確立することが必要と考えられる。本研究では一軸引張試験を実施し，引張性状に及ぼす支持条件並びにひび割れの発生に伴う2次曲げの影響を明らかにすると共に，それらの知見を生かし100mm角の大断面試験体を用いて効率的に試験が実施できる新たな一軸引張試験用治具を開発した。

• Record URL:
  • https://doi.org/10.3151/crt.23.81
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=Development+of+Loading+Devices+for+Uniaxial+Tension+on+Strain+Hardening+Cementitious+Composites&author=T.+Kikuta&author=H.+Mihashi&author=H.+Akita&publication_year=2012
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/13404733
• Authors:
  • Kikuta, Takatsune
  • Mihashi, Hirozo
  • Akita, Hiroshi
• Publication Date: 2012

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References; Tables;
• Pagination: pp 81-90
• Serial:
  • Concrete Research and Technology
  • Volume: 23
  • Issue Number: 2
  • Publisher: Japan Concrete Institute
  • ISSN: 1340-4733
  • EISSN: 2186-2745
  • Serial URL: https://www.jstage.jst.go.jp/browse/crt/-char/en
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Cement; Ductility; Loads; Strain hardening; Tension; Uniaxial stress
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 01515455
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Feb 24 2014 8:42AM