Fibers, such as steel fibers or synthetic fibers are used in UHPC matrix to improve its tensile properties. What are the effects of increasing fiber content on compressive creep and tensile creep of UHPC, respectively? Is the mechanism consistent among different fiber types (synthetic fibers or steel fibers)?
Increasing steel fiber content reduces the creep of Ultra High Performance Concrete.
As for synthetic (polymer) fibers, we have another situation due to different physical nature and viscoelastic properties of steel and polymer materials. In most cases the reinforcing concrete by polymer fibers increases creep.
@Maléna Bastien-Masse (https://www.researchgate.net/profile/Malena-Bastien-Masse) @Dominic Desnoyers (https://www.researchgate.net/profile/Dominic-Desnoyers-2)
Article Tensile basic creep versus compressive basic creep at early ...
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