Abstract
The main objective of this paper was to present the experimental and statistical results on durability and engineering material properties of self-compacting cementitious composites (ScCC) containing blended fibers and class-F fly ash (FFA). Fifteen mixtures were prepared to determine the effect of blended micro steel (MS)-polyvinyl alcohol (PVA) fibers and investigated under the capillary water absorption, J-ring, flexural, tensile, compressive, and impact tests. The results indicated an enhancement in the mechanical characteristics of ScCC containing FFA by the addition of fiber, which was appreciably dependent on the use of single or blended fibers, fiber types, and fibers' contents. It was found that the single/hybrid fibers and frictional pullout performance significantly affect the post-peak flexural behavior and number of post-first-crack blows. In general, the blended PVA-MS fiber-reinforced ScCC specimens have better behavior than the reference specimen. Also, the analytical analysis and probabilistic quantification were performed to study the variability of hardened properties.
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