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Erschienen in:
2018 | Supplement | Buchkapitel
Effect of Strain Rate and Fiber Type on Tensile Behavior of High-Strength Strain-Hardening Cement-Based Composites (HS-SHCC)
verfasst von : Ali A. Heravi, Olga Smirnova, Viktor Mechtcherine
Erschienen in: Strain-Hardening Cement-Based Composites
Verlag: Springer Netherlands
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Abstract
The tensile behavior of four different types of high-strength strain-hardening cement-based composite (HS-SHCC) is investigated under both quasi-static and dynamic loading at strain rates of 0.005 and 20 s−1, respectively. The mixtures consist of the same fine-grained cement matrix, but contain different types of high-performance polymer fiber as dispersed reinforcement. In case of dynamic loading, a new drop-weight testing device is used to apply direct tensile load to a sample with the same geometry as in the quasi-static tests. The mechanical performance of mixtures is explained based on the properties of the fibers and their interactions with the cement-based matrix. Moreover, a comparison between quasi-static and dynamic results is made in order to clarify the effect of loading rate on mechanical properties of various HS-SHCC mixtures.