High performance glass fiber reinforced concrete

Kumar, Dinesh; Rex, L. K.; Venkatesan, Shanmuganathan; Gokulnath, V.; Saravanan, B.

doi:10.1016/j.matpr.2020.06.174

Cited by 24 publications

(16 citation statements)

References 6 publications

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“…However, this explanation of the structure formation of polydispersion-reinforced fiber-reinforced concrete gives a very idealized notion of its structure, which is based on the classical laws of composite materials, but at the same time does not take into account the important structure-forming role and originality of the concrete matrix, and also practically does not affect the role of the contact zone at the phase boundary "fiber-matrix", the state of which largely determines the most important characteristics of dispersion-reinforced concrete [31].…”

Section: Discussionmentioning

confidence: 99%

“…In addition, the literature review showed that data on the effect of polydispersed reinforcement on the strength of fiber-reinforced concrete is much less than that of monodispersed reinforcement. However, these data are sufficient to conclude that it is possible to ensure regulation of material properties within broader limits than with monodispersed reinforcement [30][31][32][33].…”

Section: Introductionmentioning

confidence: 90%

“…[10] steel, basalt polypropylene 1.5 1.25 [14] steel ultrashort ultrafine steel polypropylene 1.92 4.0 0.27 [17] steel 2 [18] Kevlar + carbon 1.0 [19] nylon + jute 1.0 [20] steel, polypropylene 0.25-0.45 [21] PVA steel 1.0-2.0 1.5-4.0 [30] glass, basalt 0.25-2.0 [31] glass 0.5-3.0 [32] glass, polypropylene 0.5-2.0…”

Section: Research Sourcesmentioning

confidence: 99%

“…The strength of polydispersion-reinforced specimens changed in a similar way (Figure 5). An analysis of literary sources made it possible to establish that most often, the volume content of glass fibers in fiber-reinforced concrete is 1.5-3.0% [6][7][8]11,13,[30][31][32][33]. The dependence of the strength of fiber-reinforced concrete on the volume percentage of reinforcement is linear.…”

Section: Investigation Of the Strength Characteristics Of Monodispers...mentioning

confidence: 99%

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Quantitative and Qualitative Aspects of Composite Action of Concrete and Dispersion-Reinforcing Fiber

et al. 2022

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The interest in using polymer-dispersed reinforcement in the construction industry in the context of sustainability has led to significant research on this scientific problem. The article is devoted to studying the processes of fiber interaction depending on its dispersion and the concrete matrix, and their combined contact work during the formation of a concrete structure, work under stresses arising in a concrete body, and during a collapse. The physical and mechanical processes of deformation and destruction of the “matrix–fiber” system were studied using high-precision microscopic equipment, and the nature of the work and deformation of fibers in concrete were revealed. The work aimed to establish and characterize the quantitative and qualitative aspects of the concrete matrix and dispersion-reinforcing fiber combined work. It was established that the best values of the adhesion index were observed at a volume content of fiber in the amount of 2% by weight of cement, regardless of the type of dispersion-reinforcing fiber. It was shown that the microstructure of polydispersion-reinforced fiber-cement specimens was denser, and microcracks formed during fracture in polydispersion-reinforced specimens had a smaller opening width. It was established that polydispersion-reinforced concrete had higher values of strength (up to 126%) and deformation (up to 296%) characteristics compared to monodispersion fiber-reinforced concrete.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 90%

Section: Research Sourcesmentioning

confidence: 99%

Section: Investigation Of the Strength Characteristics Of Monodispers...mentioning

confidence: 99%

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Quantitative and Qualitative Aspects of Composite Action of Concrete and Dispersion-Reinforcing Fiber

et al. 2022

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“…Adding glass fiber to concrete can improve the flexural and splitting strength of concrete. With the increase in glass fiber content, the effect of improving concrete toughness and restraining concrete fracture is evident [ 7 , 8 , 9 , 10 ]. However, glass fiber is not alkali resistant, and long-term alkali corrosion will reduce its strength.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Aramid/Carbon Hybrid Fiber-Reinforced Concrete

Wang

Syu

et al. 2021

Materials

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In this study, aramid fiber (Kevlar® 29 fiber) and carbon fiber were added into concrete in a hybrid manner to enhance the static and impact mechanical properties. The coupling agent presence on the surface of carbon fibers was spotted in Scanning Electron Microscope (SEM) and energy-dispersive X-ray spectroscopy (EDS) graphs. The carbon fiber with a coupling agent affected the mechanical strength of the reinforced concrete. At 1% fiber/cement weight percentage, the hybrid fiber-reinforced concrete (HFRC) prepared using Kevlar fiber and carbon fiber of 12 and 24 mm in length under different mix proportions was investigated to determine the maximum mechanical strengths. From the test results, the mechanical strength of the HFRC attained better performance than that of the concrete with only Kevlar or carbon fibers. Foremost, the mix proportion of Kevlar/carbon fiber (50–50%) significantly improved the compressive, flexural, and splitting tensile strengths. Under different impact energies, the impact resistance of the HFRC specimen was much higher than that of the benchmark specimen, and the damage of the HFRC specimens was examined with an optical microscope to identify slippage or rupture failure of the fiber in concrete.

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