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Effect of randomly distributed polypropylene fiber reinforcement on the shear behavior of sandy soil Cover

Effect of randomly distributed polypropylene fiber reinforcement on the shear behavior of sandy soil

Studia Geotechnica et Mechanica
Volume 41 (2019): Issue 3 (September 2019)
By: Mehdi Missoum Benziane,  Noureddine Della,  Sidali Denine,  Sedat Sert and  Said Nouri  
Open Access
|Sep 2019

Figures & Tables

Figure 1

Localization of the liquefaction phenomenon in the Chlef valley during the earthquake of October 1980[16]
Localization of the liquefaction phenomenon in the Chlef valley during the earthquake of October 1980[16]

Figure 2

Grain size distribution curve of the Chlef sand.
Grain size distribution curve of the Chlef sand.

Figure 3

Monofilament polypropylenefiber.
Monofilament polypropylenefiber.

Figure 4

Sample preparation.
Sample preparation.

Figure 5

View of the direct shear box apparatus.
View of the direct shear box apparatus.

Figure 6

Effect of fiber content on shear behavior, normal stress of 200kPa and a relative density Dr = 30 %: (a)variation of the shear strength versus horizontal displacement,(b)variation of vertical displacement versus horizontal displacement, (c)intrinsic curves
Effect of fiber content on shear behavior, normal stress of 200kPa and a relative density Dr = 30 %: (a)variation of the shear strength versus horizontal displacement,(b)variation of vertical displacement versus horizontal displacement, (c)intrinsic curves

Figure 7

Effect of fibercontent on shear behavior, normal stress of 200kPa and a relative density Dr = 50 %: (a)variation of the shear strength versus horizontal displacement,(b)variation of vertical displacement versus horizontal displacement, (c)intrinsic curves
Effect of fibercontent on shear behavior, normal stress of 200kPa and a relative density Dr = 50 %: (a)variation of the shear strength versus horizontal displacement,(b)variation of vertical displacement versus horizontal displacement, (c)intrinsic curves

Figure 8

Effect of fibercontent on shear behavior, normal stress of 200kPa and a relative density Dr = 80 %: (a)variation of the shear strength versus horizontal displacement,(b)variation of vertical displacement versus horizontal displacement, (c)intrinsic curves
Effect of fibercontent on shear behavior, normal stress of 200kPa and a relative density Dr = 80 %: (a)variation of the shear strength versus horizontal displacement,(b)variation of vertical displacement versus horizontal displacement, (c)intrinsic curves

Figure 9

Effect of relative density and normal stress on the shear strength of fiber reinforced sand with a fiber content Fc=0.75%.
Effect of relative density and normal stress on the shear strength of fiber reinforced sand with a fiber content Fc=0.75%.

Experimental program_

Relative density, Dr(%)Fiber content, Fc(%)Normal stress, 6n(kPa)
300,0.25, 0.5and 0.7550, 100 and 200
500, 0.25, 0.5and 0.7550, 100 and 200
800, 0.25, 0.5and 0.7550, 100 and 200

Engineering properties of Chlef sand_

Sand PropertiesStandard test specificationsValue
Medium grain size, D50 (mm)ASTM D-4220.40
Maximum diameter, Dmax(mm)ASTM D-4222.00
Coefficient of uniformity, Cu (.)ASTM D-4222.227
Coefficient of curvature, Cc (.)ASTM D-4220.891
Mean specific gravity, Gs(.)ASTM D854-022.665
Maximum void ratio, emax(.)ASTM D4253-000.85
Minimum void ratio, emin(.)ASTM D4254-000.56

Physical and mechanical properties of polypropylene fiber_

Specific gravityLength (mm)Diameter (μm)Tensile strength (MPa)Young modulus (GPa)
0.911232600–7003.0–3.5
DOI: https://doi.org/10.2478/sgem-2019-0014 | Journal eISSN: 2083-831X | Journal ISSN: 0137-6365
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Language: English
Page range: 151 - 159
Submitted on: Feb 6, 2019
Accepted on: May 27, 2019
Published on: Sep 30, 2019
Published by: Wroclaw University of Science and Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
Sand,
direct shear box tests,
polypropylene fibers,
shear strength,
normal stress,
relative density
Related subjects:
Geosciences,
Geosciences, other,
Materials sciences,
Composites,
Porous materials,
Physics,
Mechanics and fluid dynamics

© 2019 Mehdi Missoum Benziane, Noureddine Della, Sidali Denine, Sedat Sert, Said Nouri, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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