Statistical and experimental analysis on the behavior of fiber reinforced concretes subjected to drop weight test

Rahmani, Tara; Kiani, Behnam; Shekarchi, Mohammad; Safari, Abdollah

doi:10.1016/j.conbuildmat.2012.07.068

Cited by 147 publications

(83 citation statements)

References 15 publications

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“…This phenomenon has been also reported previously in (26), where the COV of PC elements was even up to 51% under drop-weight impact test. Yet, the impact resistance results of PC barely had a normal distribution under the statistical and experimental analysis (27). However, the maximum impact load after a single impact and accumulated energy absorption of FRC and HCC slabs were quite close one to another.…”

Section: Comparative Ratio Of Hcc With Pc and Frc Slabs In Terms Of Imentioning

confidence: 88%

Performance of hybrid cement composite elements under drop-weight impact load

Nguyen¹,

Río²,

Sánchez‐Gálvez³

2014

Mater. construcc.

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ABSTRACT:The performance, under drop-weight impact load, of hybrid cement composite (HCC) elements, consisting of a top layer of plain concrete (PC) and a bottom layer of fibre reinforced concrete (FRC), in comparison with full-depth FRC and PC was studied. Apart from improving the tensile capacity of PC and saving fibre steel reinforcements of FRC, the results showed that HCC can effectively control the deformations and enhance the impact performance of the structural members as its outcomes were similar to that of a full-depth FRC. The analytical studies using Hughes empirical formulae (HEF) and yield line theory (YLT) adopted to investigate the practical use of HCC showed that they are applicable for design such HCC elements against impacts. KEYWORDS: RESUMEN:Comportamiento de elementos estructurales de compuestos híbridos base cemento frente a impacto de torre de caída. Se estudió el comportamiento, frente a impacto de torre de caída, de elementos híbridos base cemento (HCC), formados por una capa superior de hormigón en masa (PC) y una capa inferior de hormigón reforzado con fibras (FRC) en comparación con elementos análogos íntegramente fabricados con FRC y PC. Además de proporcionar una mejora en la resistencia frente a flexo-tracción de los PC y un ahorro en refuerzo usando fibras de acero en el caso de los FRC, los resultados mostraron que el HCC puede controlar eficazmente las deformaciones y mejorar el rendimiento frente a impacto de los elementos estructurales ya que sus resultados fueron análogos a la de los FRC. Los estudios analíticos, utilizando HEF e YLT, adoptados para investigar el uso práctico de los HCC mostraron que los mismos son aplicables para el diseño de estos elementos frente a impacto.

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Section: Comparative Ratio Of Hcc With Pc and Frc Slabs In Terms Of Imentioning

confidence: 88%

Performance of hybrid cement composite elements under drop-weight impact load

Nguyen¹,

Río²,

Sánchez‐Gálvez³

2014

Mater. construcc.

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“…A.Alavi Nia, M. Hedayatian, M. Nili and V. Afrough Sabet [3] conducted experiments on impact resistance on fiber-reinforced concrete, and found that, The increase in the fiber volume fraction will increase the Impact resistance of the concrete specimens and hooked end steel fibers with an aspect ratio of 80 at 0.5% and 1% volume fractions are more effective at increasing impact resistance than polypropylene fibers at 0.2%, 0.3% and 0.5% volume fractions and different fiber types including cellulose fiber, polypropylene fiber and steel fibers were considered at volume fractions of 0.15% and 0.5% and in addition of cellulose fiber and steel fibers, it significantly improves the first crack strength whereas in the case of increase in the number of postfirst crack blows, polypropylene and steel fibers had a remarkable effect in drop weight test [4]. P.S.…”

Section: Literature Surveymentioning

confidence: 99%

Experimental studies on Impact resistance of Ternary concrete and Steel Fiber Reinforced Ternary concrete using MS and GGBS

Suda¹,

Rao²

2016

IOSR

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“…Previous studies made by earlier researchers showed direct relationship between impact resistance of fiber reinforced concrete with concrete strength [16]- [19]. Lin and Suen [18], studied the effect of fibers and silica fume on abrasion and impact performance of concrete.…”

Section: Introductionmentioning

confidence: 99%

Impact Performance of Low Cement Ultra-High-Performance Concrete

Azmee¹,

Nuruddin²

2017

WIT Transactions on Ecology and the Environment

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Technology advancement in concrete industry and expanding interest for high quality construction materials have prompted the development of Ultra-High-Performance Concrete (UHPC). Despite of many advantages gained using UHPC, however, conventional design of UHPC poses many concerns especially on sustainability issues. Producing UHPC, requires relatively high amount of cement content and in most cases, the compositions are not optimized causing an increase in materials and energy cost. Low cement UHPC was proposed to minimize the economic and environmental disadvantages of current UHPC by incorporating high volume of Fly Ash (FA) and Silica Fume (SF) as cement replacement materials and locally available coarse aggregates. An experimental program was carried out to evaluate the effect of combined FA and SF on mechanical and impact performance of low cement UHPC. Both hooked and straight steel fibers with aspect ratio of 83 and 100 were used respectively as the reinforcing material. An enhancement of 111% was observed in impact resistance of the fibrous concretes with an incorporation of both FA and SF replacing 50% of cement, as compared to specimen without any replacement.

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Statistical and experimental analysis on the behavior of fiber reinforced concretes subjected to drop weight test

Cited by 147 publications

References 15 publications

Performance of hybrid cement composite elements under drop-weight impact load

Performance of hybrid cement composite elements under drop-weight impact load

Experimental studies on Impact resistance of Ternary concrete and Steel Fiber Reinforced Ternary concrete using MS and GGBS

Impact Performance of Low Cement Ultra-High-Performance Concrete

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