Self-compacting concrete reinforced with twisted-bundle macro-synthetic fiber

Garcez, Estela Oliari, Kabir, Muhammad Ikramul, MacLeod, Alastair, Subhani, Mahbube and Ghabraie, Kazem 2019, Self-compacting concrete reinforced with twisted-bundle macro-synthetic fiber, Applied sciences, vol. 9, no. 12, pp. 1-16, doi: 10.3390/app9122543.

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Title Self-compacting concrete reinforced with twisted-bundle macro-synthetic fiber
Author(s) Garcez, Estela OliariORCID iD for Garcez, Estela Oliari
Kabir, Muhammad Ikramul
MacLeod, AlastairORCID iD for MacLeod, Alastair
Subhani, MahbubeORCID iD for Subhani, Mahbube
Ghabraie, KazemORCID iD for Ghabraie, Kazem
Journal name Applied sciences
Volume number 9
Issue number 12
Article ID 2543
Start page 1
End page 16
Total pages 16
Publisher MDPI
Place of publication Basel, Switzerland
Publication date 2019
ISSN 2076-3417
Keyword(s) Self-compacting concrete
Synthetic fibers
Stress-crack opening relationship
Science & Technology
Physical Sciences
Chemistry, Multidisciplinary
Materials Science, Multidisciplinary
Physics, Applied
Materials Science
Summary The use of self-compacting concrete (SCC) reinforced with fibers has great potential in the precast concrete industry as the concrete can be delivered straight into the moulds, without any vibration or compacting effort. Similarly, it has the potential to replace traditional steel reinforcement depending on the design requirements. Novel synthetic fibers have recently become available in the market, but still, limited information is available on the performance of SCC reinforced with such fibers. This paper investigates the use of twisted-bundle macro-synthetic fiber in self-compacting concrete. Three different concrete mixtures with fiber dosage of 4, 6, and 8 kg/m3 were produced in large scale batches, and their performance was compared in terms of slump-flow, compressive strength, split tensile strength, modulus of elasticity, and flexural strength. Moreover, a comprehensive evaluation of the post-cracking residual strength is presented. It was found that the mixture with 4 kg/m3 fiber content has the most satisfactory flowability, whereas 8 kg/m3 mixture achieved the highest residual flexural strength. Based on the observed post-cracking behavior, a simplified stress-crack opening constitutive law is proposed. Since the fiber dosage affects the residual flexural strength, a factor related to fiber content is recommended while determining the ultimate residual flexural strength.
Language eng
DOI 10.3390/app9122543
Indigenous content off
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2019, the authors
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Created: Sat, 22 Jun 2019, 15:43:49 EST

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