<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Studies in the literature indicate that while tire crumb rubber can be added to concrete to replace some natural aggregates, steel fibers need to be introduced to overcome the compromise in the mechanical properties of concrete, especially compressive and tensile strength, that would be caused due to the addition of tire crumb rubber exclusively. In the present study, a minimum content of steel fibers has been added to mitigate the negative impact of addition of tire rubber fibers on the mechanical properties of concrete. The tire rubber fibers content was varied from 1% to 3% by volume whereas steel fibers were added from 0.1% to 0.3% by volume only. In this way, the effectiveness of hybridized concrete using tire rubber and steel fibers was evaluated based on its mechanical properties. The results revealed that inclusion of steel fibers overcame the reduction in strength and toughness of concrete to which tire rubber fibers have been added. Concrete with 2% tire rubber fibers and 0.2% steel fibers showed better mechanical performance in terms of compressive strength (10%), split tensile (14.7%), flexural strength (6.6%), and flexural toughness indices (
<inline-formula>
<alternatives>
<inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/j_msp-2022-0009_ieq_001.png"></inline-graphic>
<math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msubsup><mi>T</mi><mrow><mn>150</mn></mrow><mi>D</mi></msubsup><mo>=</mo><mn>46</mn><mo>%</mo></mrow></math>
<tex-math>T_{150}^D = 46\% </tex-math>
</alternatives>
</inline-formula>
, 
<inline-formula>
<alternatives>
<inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/j_msp-2022-0009_ieq_002.png"></inline-graphic>
<math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msubsup><mi>f</mi><mrow><mn>150</mn></mrow><mi>D</mi></msubsup><mo>=</mo><mn>45</mn><mo>%</mo></mrow></math>
<tex-math>f_{150}^D = 45\% </tex-math>
</alternatives>
</inline-formula>
) as compared to the concrete with only 3% tire rubber fibers.</p>
</abstract>

Studies in the literature indicate that while tire crumb rubber can be added to concrete to replace some natural aggregates, steel fibers need to be introduced to overcome the compromise in the mechanical properties of concrete, especially compressive and tensile strength, that would be caused due to the addition of tire crumb rubber exclusively. In the present study, a minimum content of steel fibers has been added to mitigate the negative impact of addition of tire rubber fibers on the mechanical properties of concrete. The tire rubber fibers content was varied from 1% to 3% by volume whereas steel fibers were added from 0.1% to 0.3% by volume only. In this way, the effectiveness of hybridized concrete using tire rubber and steel fibers was evaluated based on its mechanical properties. The results revealed that inclusion of steel fibers overcame the reduction in strength and toughness of concrete to which tire rubber fibers have been added. Concrete with 2% tire rubber fibers and 0.2% steel fibers showed better mechanical performance in terms of compressive strength (10%), split tensile (14.7%), flexural strength (6.6%), and flexural toughness indices (



T150D=46%
T_{150}^D = 46\% 


, 



f150D=45%
f_{150}^D = 45\% 


) as compared to the concrete with only 3% tire rubber fibers.

Coupled effect of waste tire rubber and steel fibers on the mechanical properties of concrete

Structural Engineering and Construction Management Department, Faculty of Engineering and Technology

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Studies in the literature indicate that while tire crumb rubber can be added to concrete to replace some natural aggregates, steel fibers need to be introduced...

Coupled effect of waste tire rubber and steel fibers on the mechanical properties of concrete

Pubblicato online: 29 mag 2022

Pagine: 49 - 59

Ricevuto: 17 feb 2022

Accettato: 31 mar 2022

DOI: https://doi.org/10.2478/msp-2022-0009

Parole chiave
waste tires, fibers, waste management, waste elimination, hybridized concrete, strength of concrete

© 2022 Mohsin Adeel Waris et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Coupled effect of waste tire rubber and steel fibers on the mechanical properties of concrete

Pubblicato online: 29 mag 2022

Pagine: 49 - 59

Ricevuto: 17 feb 2022

Accettato: 31 mar 2022

DOI: https://doi.org/10.2478/msp-2022-0009

Parole chiavewaste tires, fibers, waste management, waste elimination, hybridized concrete, strength of concrete

© 2022 Mohsin Adeel Waris et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Parole chiave
waste tires, fibers, waste management, waste elimination, hybridized concrete, strength of concrete