PSI - Issue 28

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000–000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 28 (2020) 950–956

© 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the European Structural Integrity Society (ESIS) ExCo Abstract The paper deals with the comparison of tensile strength of fiber reinforced concrete with different types of fibers. Detailed knowledge of mechanical properties is necessary for advanced design of fiber reinforced concrete structures such as industrial floors, foundation slabs, beams etc. The paper is focused on determination of density, compressive strength, bending tensile strength and splitting tensile strength. Two different types of fibers were used, specifically straight and short fibers and fibers with double hooked ends, with dosage of 40, 75 and 110 kg/m 3 . Mechanical properties were compared with properties of basic plain concrete mixture (i.e. dosing of fibers 0 kg/m 3 ) to compare the effect of fibers on mechanical properties in comparison with plain concrete. © 2020 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the European Structural Integrity Society (ESIS) ExCo Keywords: Concrete, fiber reinforced concrete, splitting tensile strength, bending tensile strength ; 1. Introduction Although many people consider fiber reinforced concrete as a new composite material, the principle of adding fibers to obtain new improved mechanical properties is known for a long time. By adding fibers to concrete, its brittleness decreases and tensile strength is improved (Abrishambaf et al., 2015b). Steel and glass fibers were added in the beginning (Mobasher and Shah, 1990, Katzer and Domski, 2012, Kasagani and Rao, 2016). As it was proved that fibers significantly improve mechanical properties, many companies have begun 1st Virtual European Conference on Fracture Comparison of tensile strength fiber reinforced concrete with different types of fibers Zuzana Marcalikova a, *, Miroslav Racek a , Pavlina Mateckova a , Radim Cajka a a Faculty of Civil Engineering, VSB-Technical University of Ostrava, Ludvíka Podéšt ě 1875/17, 708 00 Ostrava-Poruba, Czech Republic

* Corresponding author. Tel.: +420-597-321-318; fax: +420-597-321-356. E-mail address: zuzana.marcalikova@vsb.cz

2452-3216 © 2020 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the European Structural Integrity Society (ESIS) ExCo

2452-3216 © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the European Structural Integrity Society (ESIS) ExCo 10.1016/j.prostr.2020.11.068