Tailoring SHCC made of steel cords and plastic fibers

A. P. Fantilli, H. Mihashi, T. Naganuma, Tomoya Nishiwaki

研究成果: Chapter

1 被引用数 (Scopus)

抄録

Some Fiber-Reinforced Concrete (FRC), commonly called Strain- Hardening Cement-based Composite (SHCC), can show a very ductile behavior under tensile actions. Specifically, in the post cracking stage, several cracks develop before complete failure, which occurs when tensile strains localize in one of the formed cracks. To better understand the high mechanical performances of SHCC, an analytical model was previously proposed. The model is here used to analyze the strain-hardening behavior of a more cost-effective FRC, made with steel cords and plastic fibers. By combining direct uniaxial tensile tests, performed on dumbbell-shaped specimens, and the theoretical results of the model, the critical value of the fiber volume fraction can be evaluated. It should be considered as the minimum amount of steel cords which can lead to the formation of multiple cracking and strain hardening under tensile actions. The aim of the present paper is to reduce such volume as much as possible, in order to improve the workability and reduce the final cost of SHCC.

本文言語English
ホスト出版物のタイトルHigh Performance Fiber Reinforced Cement Composites 6
編集者Gustavo Parra-Montesinos, A.E. Naaman, Hans Reinhardt
ページ11-18
ページ数8
DOI
出版ステータスPublished - 2012 12月 1

出版物シリーズ

名前RILEM Bookseries
2
ISSN(印刷版)2211-0844
ISSN(電子版)2211-0852

ASJC Scopus subject areas

  • 土木構造工学
  • 建築および建設
  • 材料力学

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