Abstract
Two different types of strain-hardening cement-based composites (SHCC) were investigated under uniaxial quasi-static and impact tensile loading. The normal-strength matrix was combined with polyvinyl-alcohol (PVA) fiber in one composite and with high-density polyethylene (HDPE) fiber in another. A modified Hopkinson bar was used to assess the impact resistance of SHCC in terms of stress–strain relationships at strain rates of up to 120 s−1.
SHCC reinforced with PVA fiber, the composite with considerable ductility under quasi-static loading, performed much worse under impact loading than SHCC made with HDPE fiber. This could be traced back to the peculiar alteration of the fiber-matrix interaction depending on the type of fiber and corresponding bond properties, i.e. chemical bond in case of PVA fiber versus frictional bond in case of HDPE fiber.
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Curosu, I., Mechtcherine, V., Forni, D., Cadoni, E. (2018). Influence of Fiber Type on the Tensile Behavior of Strain-Hardening Cement-Based Composites (SHCC) Under Impact Loading. In: Mechtcherine, V., Slowik, V., Kabele, P. (eds) Strain-Hardening Cement-Based Composites. SHCC 2017. RILEM Bookseries, vol 15. Springer, Dordrecht. https://doi.org/10.1007/978-94-024-1194-2_30
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DOI: https://doi.org/10.1007/978-94-024-1194-2_30
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