Hybrid fiber reinforcement and crack formation in Cementitious Composite Materials

E.B. Pereira, Gregor Fischer, J.A.O. Barros

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Abstract

The use of different types of fibers simultaneously for reinforcing cementitious matrices is motivated by the concept of a multi-scale nature of the crack propagation process. Fibers with different geometrical and mechanical properties are used to bridge cracks of different sizes from the micro- to the macroscale. In this study, the performance of different fiber reinforced cementitious composites is assessed in terms of their tensile stress-crack opening behavior. The results obtained from this investigation allow a direct quantitative comparison of the behavior obtained from the different fiber reinforcement systems. The research described in this paper shows that the multi-scale conception of cracking and the use of hybrid fiber reinforcements do not necessarily result in an improved tensile behavior of the composite. Particular material design requirements may nevertheless justify the use of hybrid fiber reinforcements.
Original languageEnglish
Title of host publicationHigh Performance Fiber Reinforced Cement Composites 6
PublisherSpringer
Publication date2011
ISBN (Print)978-94-007-2435-8
Publication statusPublished - 2011
Event6th International Workshop on High Performance Fiber Reinforced Cement Composites - Ann Arbor, MI, United States
Duration: 1 Jan 2011 → …
Conference number: 6

Workshop

Workshop6th International Workshop on High Performance Fiber Reinforced Cement Composites
Number6
CountryUnited States
CityAnn Arbor, MI
Period01/01/2011 → …
SeriesRILEM Bookseries
ISSN2211-0844

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