Behavior of PVA Fiber-Reinforced Cementitious Composites under Static and Impact Flexural Effects

Atahan, Hakan Nuri; Pekmezci, Bekir Yılmaz; Tuncel, Erman Yiğit

doi:10.1061/(asce)mt.1943-5533.0000691

Cited by 72 publications

(36 citation statements)

References 18 publications

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“…Such a contradictory in a specific property is not observed in flexural strength of reinforced geopolymers, where Zhang et al [13], Natali et al [14], Li et al [15] and Zhang et al [16] all have reported improvement of flexural strength by fibre-reinforcing. A comprehensive review on short fibrereinforced geopolymers can be found in Shaikh work [17] and other related papers [18][19][20][21][22][23][24][25][26][27] on fibre-reinforced geopolymer paste and concrete.…”

Section: Introductionmentioning

confidence: 99%

Flexural strength of plain and fibre-reinforced boroaluminosilicate geopolymer

Nazari

Maghsoudpour²,

Sanjayan

2015

Construction and Building Materials

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Section: Introductionmentioning

confidence: 99%

Flexural strength of plain and fibre-reinforced boroaluminosilicate geopolymer

Nazari

Maghsoudpour²,

Sanjayan

2015

Construction and Building Materials

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“…From Fig.6, it is interesting to note that the Deflection Ductility Index increases with an increase in mesh and/ or fibre reinforcement [44]. …”

Section: Deflection Ductilitymentioning

confidence: 99%

Deflection Ductility of Slabs Made of Hybrid Mesh-And-Fibre-Reinforced Cementbased Composite

Sakthivel

2017

Archives of Civil Engineering

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Steel Mesh-Reinforced Cementitious Composites (SMRCC) (traditionally known as ferrocement) have been in existence for few decades, but have some limitations set on element thickness and number of reinforcing mesh layers and the resulting deflection ductility. Therefore, the author has made an attempt to explore whether deflection ductility will improve in mesh-reinforced cementitious composites (25 mm thick) if discontinuous fibres are added to slab elements. were analyzed. From the flexural load-deflection curves it has been observed that HMFRCBC slabs demonstrate higher flexural load-carrying capacity and deflection ductility when compared to SMRCC slabs. This study shows that higher the polyolefin fibre volume fraction (PO-FVf) from 0.5 to 2.5% (with a 0.5% interval) in HMFRCBC slabs, the higher the flexural deflection ductility. The Deflection Ductility Index (DDI) of HMFRCBC (with 5 layers of mesh and PO-FVf=2.5%) is 4.5 times that of SMRCC. This study recommends that HMFRCBC can be used as an innovative construction material due to its higher flexural ductility characteristics.

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“…As a consequence of this behavior, under the effects of static and impact loads, the composite would absorb higher amount of energy. In a previous study , it has been shown that, for a composite having same mixture properties, the observed amount of pulled‐out fibers are different under static and impact load effects. For example, on the fractured surface of impact load test samples, the quantity of pulled‐out fibers are much more higher than the statically loaded ones.…”

Section: Introductionmentioning

confidence: 98%

Fiber quantity analysis of cementitious composite using multifocus imagery

et al. 2016

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After static and impact loading tests applied to PVA fiber reinforced cementitious composites, depending on the loading type and mixture properties of the composite, different fiber failure types are observed at the fractured surface of test samples. It is very hard to determine the pulled out fiber amount with conventional methods. The purpose of this study is to display these differences in a quantitative way using digital imaging processing techniques and exhibit the relation between absorbed energy and pulled out fiber area. Digital image processing might provide useful techniques to determine structure of the cracked surface of samples. Since close‐up images of the failure surfaces of test samples are needed to examine thin and short fibers, from the point view of science of measurement and modeling from stereo images, digital photogrammetry does not produce prospective results appropriately. In this work, in order to reveal fibers, two complementary image‐processing techniques were used successively. First, images, which obtained from macro photographic lenses at different focal lengths, were combined with multifocus imaging. Second, processed multifocused image is automatically clustered in order to extract fibers with maximum likelihood classification algorithm. Consequently, state of side‐views of the fractured surfaces of composites is drawn precisely. The amount of pulled out fibers were estimated by using the area calculated. The relation between the absorbed energy and pulled fiber area was obtained. With increase of absorbed fracture energy, pulled out fiber amount for both static and dynamic tests increases. POLYM. COMPOS., 39:2126–2134, 2018. © 2016 Society of Plastics Engineers

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Behavior of PVA Fiber-Reinforced Cementitious Composites under Static and Impact Flexural Effects

Cited by 72 publications

References 18 publications

Flexural strength of plain and fibre-reinforced boroaluminosilicate geopolymer

Flexural strength of plain and fibre-reinforced boroaluminosilicate geopolymer

Deflection Ductility of Slabs Made of Hybrid Mesh-And-Fibre-Reinforced Cementbased Composite

Fiber quantity analysis of cementitious composite using multifocus imagery

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