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

Mohsin Adeel Waris
Mohsin Adeel Waris
, 
Umbreen us Sahar
Umbreen us Sahar
, 
Usman Akmal
Usman Akmal
, 
Nauman Khurram
Nauman Khurram
, 
Fahid Aslam
Fahid Aslam
 oraz 
Dina Fathi
Dina Fathi
   | 29 maj 2022
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Data publikacji: 29 maj 2022
Zakres stron: 49 - 59
Otrzymano: 17 lut 2022
Przyjęty: 31 mar 2022
DOI: https://doi.org/10.2478/msp-2022-0009
Słowa kluczowe
© 2022 Mohsin Adeel Waris et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1

(A) Steel fibers; (B) Rubber fibers
(A) Steel fibers; (B) Rubber fibers

Fig. 2

Load-deflection curves for flexural toughness indices (A) as per ASTM C1609, (B) as per ASTM C1018
Load-deflection curves for flexural toughness indices (A) as per ASTM C1609, (B) as per ASTM C1018

Fig. 3

Slump test results
Slump test results

Fig. 4

Compressive strength results
Compressive strength results

Fig. 5

Split cylinder strength
Split cylinder strength

Fig. 6

Load-deflection curves (A) Control and mono fibers; (B) 1% rubber, 0.1% and 0.2% steel fibers; (C) 2% rubber, 0.1% and 0.2% steel fibers; (D) 3% rubber, 0.1% and 0.2% steel fibers
Load-deflection curves (A) Control and mono fibers; (B) 1% rubber, 0.1% and 0.2% steel fibers; (C) 2% rubber, 0.1% and 0.2% steel fibers; (D) 3% rubber, 0.1% and 0.2% steel fibers

Fig. 7

MOR results. MOR, modulus of rupture
MOR results. MOR, modulus of rupture

Fig. 8

Flexural toughness results ( T150D T_{150}^D )
Flexural toughness results ( T150D T_{150}^D )

Fig. 9

Residual strength ( f 150D f_{\,150}^D )
Residual strength ( f 150D f_{\,150}^D )

Fig. 10

Equivalent flexural strength ratio RT,150D R_{T,150}^D
Equivalent flexural strength ratio RT,150D R_{T,150}^D

Fig. 11

Results of the I5 and I10 toughness indices
Results of the I5 and I10 toughness indices

Toughness indices I5 and I10

Mix I5 I10 I10/I5
R0S0 1.00 1.00 1.00
R3S0 1.00 1.00 1.00
R0S0.3 2.31 3.19 1.38
R1S0.1 1.84 2.04 1.11
R1S0.2 1.89 2.17 1.15
R2S0.1 1.79 2.17 1.21
R2S0.2 2.04 2.74 1.34
R3S0.1 2.04 2.48 1.22
R3S0.2 2.18 2.86 1.31

Concrete mixture details

Mix name R0S0 R0S0.3 R3S0 R1S0.1 R2S0.1 R3S0.1 R1S0.2 R2S0.2 R3S0.2
Cement (kg/m3) 541 541 541 541 541 541 541 541 541
Sand (kg/m3) 541 541 541 541 541 541 541 541 541
Gravel (kg/m3) 1,082 1,082 1,082 1,082 1,082 1,082 1,082 1,082 1,082
Water (kg/m3) 194.8 194.8 194.8 194.8 194.8 194.8 194.8 194.8 194.8
Admixture (kg/m3) 5.41 5.41 5.41 5.41 5.41 5.41 5.41 5.41 5.41
Steel fibers (kg/m3) 0 23.55 0 7.85 7.85 7.85 15.7 15.7 15.7
Rubber fibers (kg/m3) 0 0 34.2 11.4 22.8 34.2 11.4 22.8 34.2

Physical properties of fine and coarse aggregates

Sr. No. Aggregate property Fine aggregates Coarse aggregates
1 Fineness modulus 2.40 6.48
2 Specific gravity 2.70 2.64
3 Water absorption% 1.00 0.70
4 Bulk density (kg/m3) 1,650 1,590

Physical properties of fibers

Sr. No Properties Tire fibers Steel fiber
1 Average lengths (mm) 25 25
2 Average diameter (mm) 2.5 0.5
3 Aspect ratios 10 50
4 Tensile strength (MPa) 16.5–21.2* 1,100
5 Density (kg/m3) 1,140 7,850
eISSN:
2083-134X
Język:
Angielski
Częstotliwość wydawania:
4 razy w roku
Dziedziny czasopisma:
Materials Sciences, other, Nanomaterials, Functional and Smart Materials, Materials Characterization and Properties
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