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Effect Of Heat And Impact On Self-compacting Concrete Containing Polypropylene Fibers

Submitted2018-11-26
Last Update2018-11-26
TitleEffect Of Heat And Impact On Self-compacting Concrete Containing Polypropylene Fibers
Author(s)Author #1
Author title:
Name: Hossein Pourali
Org: M.Sc., Department of Civil Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
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Email: test@test.com

Author #2
Author title:
Name: Saeed Azizi
Org: M.Sc., Department of Civil Engineering, Zahedan Branch, Islamic Azad University, Zahedan, Iran
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Author #3
Author title:
Name: M. Reza Esfahani
Org: Professor, Department of Civil Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
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Other Author(s)
Contact AuthorAuthor #1
Alt Email: test@test.com
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KeywordsPolypropylene fiber, Self-compacting concrete (SCC), Tensile strength, Impact resistance
AbstractMany primary behavioral properties of concrete, including flexural strength, fatigue resistance, impact, thermal shock and brittle fracture could be improved by using reinforcing fibers into the concrete. The present study deals with the physical and mechanical behavior of Self-Compacting Concrete (SCC) containing polypropylene fibers as well as the effect of polypropylene fibers on increasing the strength of SCC and increasing its impact resistance and thermal properties. To this aim, self-compacting concrete containing 0, 0.1 and 0.3 percent by volume of polypropylene fibers was used. In order to investigate the effect of heat on the fiber-reinforced concrete, experiments were carried out on the specimens with 28 days of age, which were exposed to 250�C temperature for 8 hours. In this research, 6 cylindrical compressive test specimens, 6 tensile test specimens and 15 rectangular beams are built. Results showed that tensile strength and impact resistance are improved by increasing the presence of fibers in SCC. It was found that by adding fibers, impact resistance has increased up to 140%. Concerning the effect of fibers on the heated concrete containing fibers, it was found that fibers reduce the negative effect of heat on compressive strength, tensile strength as well as on impact resistance.
Paperview paper 4542.pdf (348KB)

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