Improvement in early-age cracking performance of concrete with hybrid steel-macropolypropylene fiber blends

Bhogone, Manjunath V.; Subramaniam, Kolluru V. L.

doi:10.1016/j.matpr.2022.04.554

Cited by 6 publications

(2 citation statements)

References 5 publications

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“…They also concluded that the hybrid fibers had a positive effect on the performance of concrete. Bhogone and Subramaniam [17] studied the early-age fracture response of concrete with steel and hybrid blend of steel and macro polypropylene fibers. They concluded that plastic shrinkage cracking was reduced by 90.4% using a hybrid blend of steel and macro polypropylene fibers.…”

Section: Introductionmentioning

confidence: 99%

Investigating the usability of Kevlar and steel fibers as a hybrid in concrete pavements

MOLA

2024

Sigma J Eng Nat Sci - Sigma Müh Fen Bil Derg

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In this study, the hybrid usage of Kevlar and steel fiber in concrete pavements was investigated. For this purpose, the concrete was designed using the water/binder ratio (0.40, 0.45, 0.50), silica fume (instead of cement 0, 5, 10%), Kevlar fiber (0 gr/m 3 , 500 gr/m 3 , 1000 gr/m 3 ) and steel fiber (0 gr/m 3 , 500 gr/m 3 , 1000 gr/m 3 ). Taguchi method was used as the experimental design, and optimum levels of parameters were determined for 28-days compressive strength, flexural strength, and toughness. According to the experiments and observations, the positive effect of Kevlar fiber upon energy absorption capacity (toughness), compressive and flexural strength of concrete was determined. Using only Kevlar fiber increasing up to 5.1% in compressive strength and up to 14.5% in flexural strength were observed. Considering the obtained results, Kevlar was noticed as a possible recycling material to be introduced into the economy by adding concrete.

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Section: Introductionmentioning

confidence: 99%

Investigating the usability of Kevlar and steel fibers as a hybrid in concrete pavements

MOLA

2024

Sigma J Eng Nat Sci - Sigma Müh Fen Bil Derg

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“…Due to the isolation layer set on the base plate, SCC is only bonded to the lower surface of the track slab [2]. After the completion of construction, due to the combined effects of environmental temperature [3], pouring construction quality [4], and SCC shrinkage [5], the interface between track slab and SCC may produce initial separation [6,7], which is very detrimental to the long-term safe operation of high-speed railways. Therefore, it is necessary to research the evolution law and influencing factors of interface properties during the construction stage.…”

Section: Introductionmentioning

confidence: 99%

Evolution Mechanism of Interlayer Properties of CRTS III Slab Track during Construction

Wang,

Gao,

Wang

et al. 2024

Applied Sciences

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The interlayer properties of the CRTS III slab track during construction directly affect its long-term service condition. This article introduces time-varying coefficients that characterize the early properties of the interface between track slab and SCC to improve the bilinear CZM. Based on this, an interlayer property evolution model of the CRTS III slab track during construction is established. The evolution mechanism of interlayer properties under complex loads and the influence mechanism of key parameters on them are revealed. The results show that after SCC pouring, the interlayer damage at the corner of the slab becomes a sensitive area due to the combined effects of SCC shrinkage and temperature gradients. Interlayer damage initially manifests at the corner of the slab before progressively spreading toward the center of the slab, influencing the composite performance and force transmission characteristics of the track structure. The interlayer bonding property, shrinkage performance of SCC, and construction temperature substantially affect interlayer damage evolution. To reduce the risk of damage, mineral admixtures and expansion agents can be added as additives to improve the bonding property and minimize shrinkage of SCC. Insulation measures should be taken for SCC during low-temperature construction, and SCC pouring construction below 0 °C and above 30 °C should be avoided.

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Effect of exposure temperatures on chloride penetration resistance of concrete incorporating polypropylene Fibers, silica fume and metakaolin

Al-Sodani

2022

Construction and Building Materials

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Improvement in early-age cracking performance of concrete with hybrid steel-macropolypropylene fiber blends

Cited by 6 publications

References 5 publications

Investigating the usability of Kevlar and steel fibers as a hybrid in concrete pavements

Investigating the usability of Kevlar and steel fibers as a hybrid in concrete pavements

Evolution Mechanism of Interlayer Properties of CRTS III Slab Track during Construction

Effect of exposure temperatures on chloride penetration resistance of concrete incorporating polypropylene Fibers, silica fume and metakaolin

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