Engineering Mechanics

Proceedings Vol. 29 (2023)

ENGINEERING MECHANICS 2023

Copyright © 2023 Institute of Thermomechanics of the Czech Academy of Sciences, Prague

 

Prokop J., Zia A., Hollý I., Ondák A.
pages 211 - 214, full text

A considerable increase in pollution has been observed due to waste tire accumulation, causing environmental and health issues. Therefore, recycling the waste tire and its ingredients is crucial. Recycled steel fibers from waste tires (RSFs) are one of the primary ingredients of waste tires. It has been reported that incorporating RSFs in concrete can significantly improve concrete's strengths and energy absorption. This experimental research aims to investigate the compressive and flexural properties of RSF-reinforced concrete (RSFRC) with various doses of RSF. In total, 30 specimens were tested. An average of three readings is taken for each property. The compressive strength (CS) test was carried out according to STN EN 12 390-3. Flexural strength (FS) was determined on the beamlets with a notch according to JCI-S-001-2003 and JCI-S-002-2003. Plain concrete is used as a baseline. It has been observed that the inclusion of 1,9% RSF increased the CS. The bending test result is an increasing trend of fracture energy with an increasing dose of RSF. It is found that the RSFs have the potential to enhance the compressive and flexure properties of the concrete. It is recommended to evaluate the influence of RSFs on the long-term durability improvement of concrete.

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