Comprehensive Studies of the Mechanical Properties of Fiber Concrete

Abstract:

The results of research on the mechanical properties of concrete with the addition of steel fibers of three different types - anchored, flattened and waved - are presented. To study the influence of steel fiber on the mechanical characteristics of fiber concrete, standardized samples were made and the following tests were carried out: cubes for chipping and compression; compression prism; figure eights for stretching; prism for tension in bending. Different types of steel fiber show unequal increases in strength. The most profitable from this point of view is the addition of anchor fiber to concrete, the least - wave fiber. But the presence of any of the considered steel fibers in the composition of the mixture significantly increases the strength of the sample. The obtained values of tensile strength when splitting the cubes, depending on the type of fiber, differ from the control concrete samples, respectively: for the anchor fiber by 22.82%, for the flattened fiber – 21.84%, for the wave fiber – 9.59%. The presence of fiber reinforcement has a positive effect on the strength during compression tests of cubes: by 13.01% for anchor fiber, 13.84% for flattened fiber, and 11.47% for wave fiber. It was found that the load-bearing capacity of steel-reinforced concrete under compression practically does not depend on the type of fiber, but the very presence of steel fiber in the concrete mixture from which the prisms were made increases the strength of the sample by an average of 11% compared to concrete prisms. In eight-figure tensile tests, the strength of concrete reinforced with wave fiber fiber gave an increase of 4.1% and 4.4% for reinforcement with anchor fiber. Tensile testing of prisms during bending using steel fiber on average increases the load at the beginning of cracking by 40%, and the load-bearing capacity by 64%. In addition, the type of failure of the sample changes from brittle to viscous.

• Periodical: Materials Science Forum (Volume 1140)
• Pages: 39-46
• DOI: https://doi.org/10.4028/p-12xplS
• Online since: December 2024
• Authors: Mykola Surianinov*, Stepan Neutov, Iryna Korneieva, Zlata Holovata
• Keywords: Cube, Fiber Concrete, Laboratory Research, Mechanical Properties, Prism, Steel Fiber

References

[1] U. Abbas, Materials Development of Steel-and Basalt Fiber Reinforced Concretes, Norwegian University of Science and Technology, 2013.

[2] G. Velayutham, C.B. Cheah, The Effects of Steel Fibre on the Mechanical Strength and Durability of Steel Fibre Reinforced High Strength Concrete (SFRHSC) Subjected to Normal and Hygrothermal Curing. Penang, EDP Sciences, 2014.

DOI: 10.1051/matecconf/20141002004

[3] I. Kuznetsova, Strength of fiber concrete elements under local compression, Findings of modern engineering research and developments: Scientific monograph. Riga, Latvia: "Baltija Publishing", 2022, pp.214-232.

DOI: 10.30525/978-9934-26-207-4-8

[4] K. Satheskumar, P. Karthik, Comparative study on self-compacting concrete using steel fibre and basalt fibre, International Journal of Current Innovation Research, 2(05) (2016) 375-379.

[5] N. Tabassum, P. Biswas, Md S. Islam, Md M. Islam, A Study On The Compressive & Flexural Strength Behavior Of Steel Fiber Reinforced Concrete Beam, International Journal of Advanced Research, 6(8) (2018) 557-567.

DOI: 10.21474/ijar01/7552

[6] Z. Marcalíková, L. Procházka, M. Pešata, J. Boháčová and R. Čajka, Comparison of material properties of steel fiber reinforced concrete with two types of steel fiber, IOP Conf. Series: Materials Science and Engineering (2019) 549.

DOI: 10.1088/1757-899x/549/1/012039

[7] Reza Babaie, Milad Abolfazli, Ahmad Fahimifar, Mechanical properties of steel and polymer fiber reinforced concrete, Journal of the Mechanical Behavior of Materials, 28(1) (2019) 119-134.

DOI: 10.1515/jmbm-2019-0014

[8] X. Shi, P.Park, Yo. Rew, K.J. Huang, Constitutive behaviors of steel fiber reinforced concrete under uniaxial compression and tension, Construction and Building Materials, 233 (2020) 117316.

DOI: 10.1016/j.conbuildmat.2019.117316

[9] T. Błaszczyński, M. Przybylska-Fałek, Steel Fiber Reinforced Concrete as a Structural Material, Poznan, Procedia Engineering, 122 (2015) 282-289.

DOI: 10.1016/j.proeng.2015.10.037

[10] S.F. Neutov, A.A. Boyadzhi, I.B. Korneeva, Determination of the main physical and mechanical characteristics of steel fiber concrete mixture of optimal composition, World science, Warsaw, Poland. 5 (33) (2) (2018) 26-30.

[11] M.G. Surianinov, O.M. Klymenko, V.Yu. Yesvandzhiya, P.V. Shimchenko, Strength of reinforced concrete with fiber of different types. International scientific and technical conference "Organic and mineral binders and road concretes based on them", Kharkiv: Khnadu, 2022, pp.152-155.

[12] DSTU B.V. 2.7-214:2009. – [effective from 2009-12-22], Concretes. Methods of determination of strength according to control samples. K.: Ministry of Regional Construction of Ukraine, 2010, 43 p. (National Standard of Ukraine).

[13] BS EN 14845-2:2006 Test methods for fibers in concrete - Part 2: Effect on concrete.

[14] BS EN 12390-3:2009 Testing hardened concrete - Part 3: Compressive strength of test specimens.