Influence of steel, glass and polymer fibers on the cracking behavior of reinforced concrete beams under flexure

Conforti, Antonio; Zerbino, Raúl Luis; Plizzari, Giovanni

doi:10.1002/suco.201800079

Cited by 42 publications

(50 citation statements)

References 13 publications

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“…Various studies have been carried out to investigate the use of glass fiber [12][13][14]. Sadrmomtazi et al [15] investigated glass fiber reinforced concrete in an experimental study.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study of Energy Absorption Capacity of Glass Reinforced SCC Beams

Mohsenzadeh

Maleki

Yaghin

2019

IJE

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A B S T R A C TVarious experimental studies have been carried out on glass fiber reinforced concrete (GFRC), but in limited studies, the behavior of this type of concrete is evaluated using finite element method (FEM). In this study an analysis model is presented for predicting energy absorption capacity of glass fiber reinforced self-compacting concrete (GFRCSCC) beams and the results are compared with experimental study. For this purpose, the investigations are conducted in two experimental and numerical sections. In experimental section, the characteristics of fresh and hardened concrete have been evaluated using slump flow, V-funnel, L-box, T50, compressive strength, tensile strength and flexural strength tests. In numerical section, ABAQUS software has been used to simulate GFRCSCC beams. The concrete damage plasticity model has been used to simulated concrete material. The fiber contents are 0, 0.25, 0.75 and 1% of the mixed concrete by volume. The results show that the maximum increase in energy absorption capacity of beams compared to the plain concrete for 25, 35 and 45 concrete grade was 29, 33.2 and 53.75%, respectively. At last, the ultimate loads corresponding to the FEM are found to hold good agreement with experimental ultimate loads which validates the FEM.

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“…Various studies have been carried out to investigate the use of glass fiber [12][13][14]. Sadrmomtazi et al [15] investigated glass fiber reinforced concrete in an experimental study.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study of Energy Absorption Capacity of Glass Reinforced SCC Beams

Mohsenzadeh

Maleki

Yaghin

2019

IJE

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“…The majority of research upon which codified methods of crack width estimation for RC/FRC members is based has involved tests undertaken using concrete reinforced with hooked‐end steel fibers . Only occasionally have other types of fibers been included in studies of in‐service crack widths . The post‐crack performance of the FRC used in these investigations has commonly been evaluated using EN14651 beam tests.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, f Ftsm is taken as 0.45 f R1 where the parameter f R1 is the mean residual strength at 0.5 mm crack mouth opening displacement (CMOD) in an EN14651 beam test. This is similar to the approach described by Conforti et al However, ASTM C1609/C1609M beams were used instead of EN14651 beams because the capacity to test the latter was not available. Estimates of residual flexural strength derived from ASTM C1609/C1609M beams have therefore been substituted for f R1 .…”

Section: Introductionmentioning

confidence: 99%

Predicting crack widths in FRC/reinforced concrete members using small deformation post‐crack parameters

Bernard¹

2019

Structural Concrete

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Fibers are now accepted as a means of reducing flexural and direct tension crack widths when used in combination with conventional reinforcement. However, methods used to predict in‐service crack widths incorporate performance parameters for fiber‐reinforced concrete (FRC) measured at much wider crack widths than those that occur in service. This may result in a discrepancy between tests and in‐service behavior, especially for FRC mixtures exhibiting rapidly changing performance immediately after cracking. This investigation has examined whether the crack width at which FRC performance is measured in standard beam tests has an influence on the accuracy of crack width predictions using Model Code 2010, and whether these predictions are realistic for a wide range of fiber types. The results indicate that predictions based on post‐crack residual strength appear reasonable for a wide range of fiber types, but that accuracy is improved if post‐crack performance is assessed at a crack width that more closely approximates the narrow widths that occur in service.

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“…By adding either polypropylene (PP) or steel fibers into the concrete mix to create fiber reinforced self‐compacting rubberised concrete (FRSCRC), both the fresh and mechanical properties are changed. While this will cause alterations that are both beneficial and detrimental, there are ways to alleviate the negative side effects with the use of additional admixtures …”

Section: Introductionmentioning

confidence: 99%

Experimental investigation into the properties of self‐compacting rubberised concrete incorporating polypropylene and steel fibers

Aslani

Gedeon

2018

Structural Concrete

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Adding a waste tyre rubber aggregate to the self-compacting concrete forms a new type of concrete call self-compacting rubberise concrete, which is used as a way of reducing waste and increasing sustainability in terms of the waste rubber, and changing the properties of the concrete to be more beneficial under certain circumstances and applications. In addition to adding rubber aggregates, polypropylene (PP) fibers and steel fibers are added into the concrete mix as well to create fiber reinforced self-compacting rubberised concrete (FRSCRC). This experimental investigation is using waste tyre rubber as a replacement for the aggregate in the FRSCRC. Using crumb rubber sizes of 2-5 mm, a replacement of 20% of fine aggregates was integrated. The amount of fibers varied depending on the type of fiber. In the case of PP fibers, 0.1, 0.15, 0.2, and 0.25% by total volume were tested, and for steel, 0.25, 0.5, 0.75, and 1% were tested. These mixes were tested for their fresh properties using the slump test and the J-ring test, and hardened properties including compressive strength, splitting tensile strength and compressive stress-strain tests. The results indicated that as more fiber is added, the larger the negative impact on the rheological properties of the FRSCRC and steel fibers having a much larger detrimental effect than PP fibers. In terms of mechanical properties, PP fibers reduced the compressive strength of the concrete as a higher percentage of fiber was added, but had no major effect on the splitting tensile strength. Steel fibers, on the other hand, showed a minor increase to compressive strength, as well as an increase to splitting tensile strength as more fibers were added.

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Influence of steel, glass and polymer fibers on the cracking behavior of reinforced concrete beams under flexure

Cited by 42 publications

References 13 publications

Experimental and Numerical Study of Energy Absorption Capacity of Glass Reinforced SCC Beams

Experimental and Numerical Study of Energy Absorption Capacity of Glass Reinforced SCC Beams

Predicting crack widths in FRC/reinforced concrete members using small deformation post‐crack parameters

Experimental investigation into the properties of self‐compacting rubberised concrete incorporating polypropylene and steel fibers

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