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Flexural and tensile behavior of rubberized concrete: experimental analysis Cover

Flexural and tensile behavior of rubberized concrete: experimental analysis

Scientific Review Engineering and Environmental Sciences
Volume 34 (2025): Issue 2 (June 2025)
By: Loubna EnkaikiORCID,  Oussama JarachiORCID,  Petru MihaiORCID,  Hanane Moulay AbdelaliORCID and  Om El Khaiat MoustachiORCID  
Open Access
|Jun 2025

Figures & Tables

FIGURE 1.

Splitting test Source: own photo.
Splitting test Source: own photo.

FIGURE 2.

Test configuration of beams Source: own photo.
Test configuration of beams Source: own photo.

FIGURE 3.

Density curve as a function of crumb rubber content Source: own work.
Density curve as a function of crumb rubber content Source: own work.

FIGURE 4.

Variations in density normalized to the reference group Source: own work.
Variations in density normalized to the reference group Source: own work.

FIGURE 5.

Tensile strength curve as a function of crumb rubber content Source: own work.
Tensile strength curve as a function of crumb rubber content Source: own work.

FIGURE 6.

Variations in tensile strength normalized to the reference group Source: own work.
Variations in tensile strength normalized to the reference group Source: own work.

FIGURE 7.

Flexural breaking strength variation curve as a function of crumb rubber content Source: own work.
Flexural breaking strength variation curve as a function of crumb rubber content Source: own work.

FIGURE 8.

Variations in breaking strength normalized to the reference group Source: own work.
Variations in breaking strength normalized to the reference group Source: own work.

FIGURE 9.

The curve of mid-span deflection as a function of crumb rubber content Source: own work.
The curve of mid-span deflection as a function of crumb rubber content Source: own work.

FIGURE 10.

Variations of mid-span deflection normalized to the reference group Source: own work.
Variations of mid-span deflection normalized to the reference group Source: own work.

FIGURE 11.

Failure modes of Group 1 (a), Group 2 (b), Group 3 (c) and Group 4 (d) Source: own work.
Failure modes of Group 1 (a), Group 2 (b), Group 3 (c) and Group 4 (d) Source: own work.

Density (ρ) variation

SpecificationGroup
1 (0%)2 (10%)3 (20%)4 (30%)
ρ [kg·m−3]2 238.092 181.662 170.222 113.16
StDev6.4510.466.205.21
Average + 1StDev2 244.542 192.122 176.422 118.37
Average − 1StDev2 231.642 171.192 164.022 107.95

Splitting tensile strength (fctm) variation

SpecificationGroup
1 (0%)2 (10%)3 (20%)4 (30%)
fctm [MPa]2.662.261.891.46
StDev0.150.250.080.11
Average + 1StDev2.822.501.971.57
Average − 1StDev2.512.011.801.35

Deflection variation at mid-span

SpecificationGroup
1 (0%)2 (10%)3 (20%)4 (30%)
Deflection [mm]17.2314.8413.3614.96
StDev3.281.890.591.54
Average + 1StDev20.5116.7313.9516.50
Average − 1StDev13.9512.9512.7613.42

Mix proportions

SpecificationGroup
1 (0%)2 (10%)3 (20%)4 (30%)
Cement [kg·m−3]489
Water [kg·m−3]210
W/C [-]0.43
Regular aggregates [kg·m−3]
0‒4 mm582523.80465.60407.40
4‒8 mm388310.40232.80155.20
8‒16 mm646.70646.70646.70646.70
Rubber aggregates [kg·m−3]
0‒4 mm010.9521.9032.85
4‒8 mm014.6029.2043.80
8‒16 mm0000
Additives [kg·m−3]4.89

Variation in flexural breaking strength (F)

SpecificationGroup
1 (0%)2 (10%)3 (20%)4 (30%)
F [kN]31.6828.9730.6828.79
StDev1.220.800.881.69
Average + 1StDev32.9029.7731.5630.48
Average − 1StDev30.4628.1729.8027.09
DOI: https://doi.org/10.22630/srees.10183 | Journal eISSN: 2543-7496 | Journal ISSN: 1732-9353
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Language: English
Page range: 128 - 143
Submitted on: Dec 20, 2024
Accepted on: Feb 17, 2025
Published on: Jun 30, 2025
Published by: Warsaw University of Life Sciences - SGGW Press
In partnership with: Paradigm Publishing Services
Keywords:
rubberized concrete,
density,
splitting tensile strength,
flexural testing
Related subjects:
Architecture and design,
Architecture,
Architects, buildings,
Geosciences,
Geosciences, other,
Engineering,
Mechanical engineering,
Fundamentals of mechanical engineering,
Geosciences,
Geology and mineralogy

© 2025 Loubna Enkaiki, Oussama Jarachi, Petru Mihai, Hanane Moulay Abdelali, Om El Khaiat Moustachi, published by Warsaw University of Life Sciences - SGGW Press
This work is licensed under the Creative Commons Attribution-NonCommercial 4.0 License.

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