The Size Effect on Flexural Fracture of Polyolefin Fibre-Reinforced Concrete

Iranzo, Álvaro Picazo; Alberti, Marcos García; Gálvez, Jaime C.; Enfedaque, Alejandro; Vega, Abner C.

doi:10.3390/app9091762

Cited by 13 publications

(14 citation statements)

References 22 publications

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“…Additionally, the problems of electric and magnetic fields may have adverse effects [ 8 ]. Consequently, as alternative reinforcing materials, synthetic fibers have wide applications due to several advantages over steel fibers, including low cost, chemical stability, and minute electromagnetic interference [ 8 , 203 , 211 , 212 , 213 ]. The most commonly used synthetic fibers are PP, PVA, and polyolefin fibers.…”

Section: Factors Affecting Fracture Properties Of Frcbmsmentioning

confidence: 99%

“…When polyolefin fibers were added to self-compacting concrete (SCC), the composite was found to achieve similar fracture properties to those of steel fibers, while the fiber content was lesser in terms of weight than that of steel fibers [ 214 ]. The SCC reinforced with polyolefin fibers had higher fracture properties and better ductile behavior [ 213 , 214 ]. PP fibers, with a lower modulus, are more broadly used than polyolefin fibers for reducing shrinkage in concrete and preventing explosive spalling [ 203 , 213 ].…”

Section: Factors Affecting Fracture Properties Of Frcbmsmentioning

confidence: 99%

“…The SCC reinforced with polyolefin fibers had higher fracture properties and better ductile behavior [ 213 , 214 ]. PP fibers, with a lower modulus, are more broadly used than polyolefin fibers for reducing shrinkage in concrete and preventing explosive spalling [ 203 , 213 ].…”

Section: Factors Affecting Fracture Properties Of Frcbmsmentioning

confidence: 99%

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Effect of Short Fiber Reinforcements on Fracture Performance of Cement-Based Materials: A Systematic Review Approach

2021

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Fracture characteristics were used to effectively evaluate the performance of fiber-reinforced cementitious composites. The fracture parameters provided the basis for crack stability analysis, service performance, safety evaluation, and protection. Much research has been carried out in the proposed study field over the previous two decades. Therefore, it was required to analyze the research trend from the available bibliometric data. In this study, the scientometric analysis and science mapping techniques were performed along with a comprehensive discussion to identify the relevant publication field, highly used keywords, most active authors, most cited articles, and regions with largest impact on the field of fracture properties of cement-based materials (CBMs). Furthermore, the characteristic of various fibers such as steel, polymeric, inorganic, and carbon fibers are discussed, and the factors affecting the fracture properties of fiber-reinforced CBMs (FRCBMs) are reviewed. In addition, future gaps are identified. The graphical representation based on the scientometric review could be helpful for research scholars from different countries in developing research cooperation, creating joint ventures, and exchanging innovative technologies and ideas.

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Section: Factors Affecting Fracture Properties Of Frcbmsmentioning

confidence: 99%

Section: Factors Affecting Fracture Properties Of Frcbmsmentioning

confidence: 99%

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Effect of Short Fiber Reinforcements on Fracture Performance of Cement-Based Materials: A Systematic Review Approach

2021

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“…The addition of fibers is one of the most effective methods to overcome this defect [7][8][9]. The principal benefit of incorporating random evenly distributed fibers into cementitious material is to resist and decay crack propagation [10][11][12]. The fiber contribution to concrete strength begins when concrete micro-cracks initiate and enhance the cracking behavior owing to bridging the cracked sections [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Blast-Resistant Performance of Hybrid Fiber-Reinforced Concrete (HFRC) Panels Subjected to Contact Detonation

et al. 2019

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This paper experimentally investigates the blast-resistant characteristics of hybrid fiber-reinforced concrete (HFRC) panels by contact detonation tests. The control specimen of plain concrete, polypropylene (PP), polyvinyl alcohol (PVA) and steel fiber-reinforced concrete were prepared and tested for characterization in contrast with PP-Steel HFRC and PVA-Steel HFRC. The sequent contact detonation tests were conducted with panel damage recorded and measured. Damaged HFRC panels were further comparatively analyzed whereby the blast-resistance performance was quantitively assessed via damage coefficient and blast-resistant coefficient. For both PP-Steel and PVA-Steel HFRC, the best blast-resistant performance was achieved at around 1.5% steel + 0.5% PP-fiber hybrid. Finally, the fiber-hybrid effect index was introduced to evaluate the hybrid effect on the explosion-resistance performance of HFRC panels. It revealed that neither PP-fiber or PVA-fiber provide positive hybrid effect on blast-resistant improvement of HFRC panels.

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“…PFRC is still not becoming as widespread as it could is probably the scarce experience t, k, r and f are identified. To do this, the experimental results of [10] are reproduced Material density (g/cm 3 ) 0.910 Eq. diameter (mm) 0.903 Tensile strength (MPa) >500 Modulus of elasticity (GPa) >9…”

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confidence: 99%

Fracture and size effect of PFRC specimens simulated by using a trilinear softening diagram: a predictive approach

Guerra¹,

Gálvez²,

Alberti³

et al. 2021

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Size effect on plain concrete specimens is well known and can be correctly captured when performing numerical simulations by using a well characterised softening function, but in the case of fibre reinforced concrete this is not directly applicable, since an only diagram cannot capture the material behaviour on elements with different size due to dependence of the orientation factor of the fibres with the size of the specimen. In previous works, the use of a trilinear softening diagram proved to be very convenient for reproducing fracture of polyolefin fibre reinforced concrete elements, but only if it is previously adapted for each specimen size. In this work, a predictive methodology is used to reproduce fracture of polyolefin fibre reinforced concrete specimens of different sizes under three-point bending. Fracture is reproduced by means of a well known embedded cohesive model, with a trilinear softening function that is defined specifically for each specimen size. The fundamental points of these softening functions are defined a priori by using empirical expressions proposed in past works, based on an extensive experimental background. Therefore, the numerical results are obtained in a predictive manner, and then compared with a previous experimental campaign, showing that this approach properly captures the size effect, although some values of the fundamental points in the trilinear diagram could be defined more accurately.

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The Size Effect on Flexural Fracture of Polyolefin Fibre-Reinforced Concrete

Cited by 13 publications

References 22 publications

Effect of Short Fiber Reinforcements on Fracture Performance of Cement-Based Materials: A Systematic Review Approach

Effect of Short Fiber Reinforcements on Fracture Performance of Cement-Based Materials: A Systematic Review Approach

Blast-Resistant Performance of Hybrid Fiber-Reinforced Concrete (HFRC) Panels Subjected to Contact Detonation

Fracture and size effect of PFRC specimens simulated by using a trilinear softening diagram: a predictive approach

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