FRACTURE TOUGHNESS DETERMINATION OF CONCRETE BY USE OF BREAKOFF TESTER AND ACOUSTIC EMISSION TECHNIQUE.

T. Hashida, H. Takahashi, S. Kobayashi, Y. Fukugawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The breakoff test method was developed as an in-situ testing procedure for determining the fracture toughness of concrete in structure. The testing procedure involves breaking a notched cylindrical core that is drilled into the concrete. The breakoff tester was used to apply a load to the concrete core. J-integral procedure combined with acoustic emission technique was employed to determine the fracture toughness of the concrete. Additional fracture toughness tests were made on compact tension specimens and core based specimens (round shaped three point bend and short rod) to examine the validity of the breakoff fracture toughness testing procedure. It was shown that the breakoff method developed gives the reasonable fracture toughness of the concrete.

Original languageEnglish
Title of host publicationUnknown Host Publication Title
EditorsSurendra P. Shah, Stuart E. Swartz
PublisherSoc for Experimental Mechanics Inc
Number of pages1
ISBN (Print)0912053135
Publication statusPublished - 1987 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Hashida, T., Takahashi, H., Kobayashi, S., & Fukugawa, Y. (1987). FRACTURE TOUGHNESS DETERMINATION OF CONCRETE BY USE OF BREAKOFF TESTER AND ACOUSTIC EMISSION TECHNIQUE. In S. P. Shah, & S. E. Swartz (Eds.), Unknown Host Publication Title Soc for Experimental Mechanics Inc.