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Simulation of reinforced HPFRCC deformation capacity under flexure- and shear-dominated stress states
Published in Günther Meschke, Bernhard Pichler, Jan G. Rots, Computational Modelling of Concrete Structures, 2018
High-performance fiber-reinforced cementitious composites (HPFRCCs) are a special type of cement-based composite that are characterized by pseudo-strain hardening behavior under uniaxial tensile loading with multiple distributed cracking prior to crack localization (Li 2003, Naaman and Reinhardt 2006). The unique tensile properties of HPFRCC at the material level improves structural response when HPFRCCs are combined with reinforcement. Reinforced HPFRCCs have been observed to have higher damage tolerance, ductility and energy absorption capacity compared to ordinary reinforced concrete elements (Fischer and Li 2002, Parra-Montesinos 2005, Canbolat et al. 2005). These characteristics make them ideal construction materials for resilient and durable structures, especially in regions with high seismic demands.
Nano-modified slag-based cementitious composites reinforced with basalt pellets and polyvinyl alcohol fibers
Published in Journal of Sustainable Cement-Based Materials, 2023
Numerous studies [e.g. 1–3] have been introduced to mitigate the technical limitation (e.g. cracking, low toughness/ductility) of traditional concrete, leading to the development of high-performance fiber-reinforced cementitious composites (HPFRCC) using different fiber types and binders. HPFRCC typically exhibit high toughness under tension and flexural loadings [4]. For example, engineered cementitious composites (ECC), offer superior ductility/toughness associated with pseudo strain hardening performance [4]. Li and coworkers [5–8] developed ECC reinforced with polyvinyl alcohol (PVA) fibers that have moderate-to-high (4 to 12 MPa) tensile capacity with high ductility and failure strain (3 to 7%). Currently, HPFRCC are used in new construction and retrofitting applications (e.g. pavement, bridges, and buildings) to enhance ductility and performance of structural elements under service and extreme conditions.
The effect of hydrophilic (polyvinyl alcohol) fiber content on the flexural behavior of engineered cementitious composites (ECC)
Published in The Journal of The Textile Institute, 2018
H. R. Pakravan, M. Jamshidi, M. Latifi
At present high-performance concrete, according to their excellent mechanical properties in comparison to conventional fiber-reinforced concrete, can be roughly classified into two categories: high-compressive-strength concrete and high-tensile-ductility concretes including engineered cementitious composites (ECCs), strain-hardening cementitious composites (SHCC), and some high-performance fiber-reinforced cementitious composites (HPFRCCs) (Yu, Lin, Zhang, & Li, 2015).