Impact resistance of hybrid-fiber engineered cementitious composite panels

Soe, Khin; Zhang, Y.X.; Zhang, L.C.

doi:10.1016/j.compstruct.2013.01.029

Cited by 117 publications

(33 citation statements)

References 19 publications

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“…Sun and Jiao (2011) reported 1.5 times increase in impact axial tensile strength of steel fiberreinforced UHPC specimens compared to that of NSC. Soe et al (2013) studied the impact resistance of engineered cementitious composite (ECC) panels and observed higher impact resistance of hybrid fiber ECC compared to that of plain concrete.…”

Section: Uhpc Under Dynamic and Impact Loadingmentioning

confidence: 99%

Ultra-High Performance Concrete: Mechanical Performance, Durability, Sustainability and Implementation Challenges

Abbas

Nehdi

Saleem

2016

Int J Concr Struct Mater

335

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In this study, an extensive literature review has been conducted on the material characterization of UHPC and its potential for large-scale field applicability. The successful production of ultra-high performance concrete (UHPC) depends on its material ingredients and mixture proportioning, which leads to denser and relatively more homogenous particle packing. A database was compiled from various research and field studies around the world on the mechanical and durability performance of UHPC. It is shown that UHPC provides a viable and long-term solution for improved sustainable construction owing to its ultrahigh strength properties, improved fatigue behavior and very low porosity, leading to excellent resistance against aggressive environments. The literature review revealed that the curing regimes and fiber dosage are the main factors that control the mechanical and durability properties of UHPC. Currently, the applications of UHPC in construction are very limited due to its higher initial cost, lack of contractor experience and the absence of widely accepted design provisions. However, sustained research progress in producing UHPC using locally available materials under normal curing conditions should reduce its material cost. Current challenges regarding the implementation of UHPC in full-scale structures are highlighted. This study strives to assist engineers, consultants, contractors and other construction industry stakeholders to better understand the unique characteristics and capabilities of UHPC, which should demystify this resilient and sustainable construction material.

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Section: Uhpc Under Dynamic and Impact Loadingmentioning

confidence: 99%

Ultra-High Performance Concrete: Mechanical Performance, Durability, Sustainability and Implementation Challenges

Abbas

Nehdi

Saleem

2016

Int J Concr Struct Mater

335

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“…For decades, previous studies have utilized fiber-reinforced composites at both material and structural levels to improve the blast and impact resistance of cement-based composite materials (Yamaguchi et al 2011;Silva and Lu 2007;Ohkubo et al 2008;Ha et al 2011;Wu et al 2009;Mosalam and Mosallam 2001;Razaqpur et al 2007;Xie et al 2014;Ohtsu et al 2007;Lan et al 2005;Soe et al 2013;Nam et al 2010;Kim et al 2015;Li et al 2016;Coughlin et al 2010;Yoo et al 2015;Kim et al 2015;Yoo and Yoon 2016;Nam et al 2016). Yamaguchi et al (2011) reported that polyethylene fiber-reinforced concrete has superior blast resistance under contact explosions as compared with normal RC.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on the Blast Resistance of Fiber-Reinforced Cementitious Composite Panels Subjected to Contact Explosions

Nam

Kim

2017

Int J Concr Struct Mater

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This study investigates the blast resistance of fiber-reinforced cementitious composite (FRCC) panels, with fiber volume fractions of 2%, subjected to contact explosions using an emulsion explosive. A number of FRCC panels with five different fiber mixtures (i.e., micro polyvinyl alcohol fiber, micro polyethylene fiber, macro hooked-end steel fiber, micro polyvinyl alcohol fiber with macro hooked-end steel fiber, and micro polyethylene fiber with macro hooked-end steel fiber) were fabricated and tested. In addition, the blast resistance of plain panels (i.e., non-fiber-reinforced high strength concrete, and non-fiberreinforced cementitious composites) were examined for comparison with those of the FRCC panels. The resistance of the panels to spall failure improved with the addition of micro synthetic fibers and/or macro hooked-end steel fibers as compared to those of the plain panels. The fracture energy of the FRCC panels was significantly higher than that of the plain panels, which reduced the local damage experienced by the FRCCs. The cracks on the back side of the micro synthetic fiber-reinforced panel due to contact explosions were greatly controlled compared to the macro hooked-end steel fiber-reinforced panel. However, the blast resistance of the macro hooked-end steel fiber-reinforced panel was improved by hybrid with micro synthetic fibers.

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“…Fibres used for FRC mixture had hooked ends that are generally considered as the best form of anchorage. The fibre content in FRC was designed to be 0.63% as the best range of steel fibres with hooked ends for impact resistance concrete lies between 0.5% and 0.75% by volume [9].…”

Section: Methodsmentioning

confidence: 99%

“…Influence of matrix composition [5,6], compressive strength and curing temperature [7], panel thickness [8] or impact velocity [9,10] were studied extensively. Very little studies have been focused on the estimation of the optimal fibre content in the UHPFRC mixture.…”

Section: Research Significancementioning

confidence: 99%

Residual velocity of the non-deformable projectile after perforating the ultra-high performance fibre reinforced concrete

Sovják¹,

Vav²,

iník³

et al. 2014

WIT Transactions on the Built Environment

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This contribution is focused on the optimal fibre content in the ultra-high performance fibre reinforced concrete (UHPFRC) mixture with respect to the residual velocity of the non-deformable projectile after perforating the UHPFRC slabs. Impact velocity of the non-deformable projectile was in the range of 700 m/s. The UHPFRC used in this study exceeded 150 MPa in uniaxial compression and tensile strength was around 10 MPa. In total 24 UHPFRC slabs with different fibre content were tested for impact loading. In addition, 8 slabs were tested for comparison including high strength concrete (HSC) and conventional fibre reinforced concrete (FRC). It was verified experimentally that UHPFRC had an excellent impact resistance compared to conventional materials such as FRC or HSC. Further it was found that optimal fibre content in UHPFRC for impact resistant structures is 2% by volume. Usage of less than 2% of fibre concrete by volume led to higher residual velocity of the projectile after perforating the slab and also to higher debris fragment mass.

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Impact resistance of hybrid-fiber engineered cementitious composite panels

Cited by 117 publications

References 19 publications

Ultra-High Performance Concrete: Mechanical Performance, Durability, Sustainability and Implementation Challenges

Ultra-High Performance Concrete: Mechanical Performance, Durability, Sustainability and Implementation Challenges

Experimental Investigation on the Blast Resistance of Fiber-Reinforced Cementitious Composite Panels Subjected to Contact Explosions

Residual velocity of the non-deformable projectile after perforating the ultra-high performance fibre reinforced concrete

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