Large‐Scale Direct Shear Test on Scrap Tire Strip Reinforced Brick Powder

Ma, Qiang; Deng, Qian; Mou, Jia; Yang, Shuo; Zhang, Xu

doi:10.1155/2019/6046037

Cited by 5 publications

(4 citation statements)

References 31 publications

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“…e stiffness of the concrete particles is far greater than that of the tire patch, and the tire patch will penetrate into the tire patch after bearing the force. A similar mechanism of action between brick powder particles and tire slices was confirmed by Ma et al [15]. At this time, the tire will give a reaction force to the concrete particles and increase the cohesion and friction in the sample.…”

Section: 5supporting

confidence: 73%

“…Ghazavi and Sakhi [12] mixed tire slices of different sizes and contents into sandy soil and investigated the shear strength and the deformation properties of the mixed soil through large-scale direct shear tests. Similar direct shear tests obtained the same conclusion that the tire reinforced composite soil could improve its shear strength and reduce the deformation [13][14][15]. After a lot of tests, it is found that the mechanical properties of the tire were not the same when it is mixed with different materials.…”

Section: Introductionmentioning

confidence: 58%

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Large‐Scale Direct Shear Test on Tire Slice Reinforced Crushed Concrete Particles

Shu

Mou

et al. 2020

Advances in Materials Science and Engineering

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In order to study the mechanical properties of tire slices reinforced crushed concrete particles, a series of shear tests were carried out under the conditions of different vertical loads, different tire volume contents, and different shear rates. e test results show that the addition of tire slices can increase the internal friction angle and cohesion of concrete particles, therefore increase the shear strength of crushed concrete particles. e peak shear stress increases with the increase of vertical load. However, with the increase of the tire volume content, the reinforcement effect of the tire slices first increases and then decreases, and the effect is best when the tire volume content is 4%. Under the vertical load of 60 kPa, the reinforcement effect of 4% tire volume content is the best, and the peak shear stress increases by 46.53%. Additionally, the shear rate has a little effect on the peak shear stress. e larger the shear rate is, the smaller the shear displacement is and the faster the shear strength decreases. e smaller the shear rate is, the more gently the shear strength decreases.

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Section: 5supporting

confidence: 73%

Section: Introductionmentioning

confidence: 58%

Large‐Scale Direct Shear Test on Tire Slice Reinforced Crushed Concrete Particles

Shu

Mou

et al. 2020

Advances in Materials Science and Engineering

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“…It was concluded that the use of high-impact polystyrene and foam glass can be considered as a useful way of utilization waste. Further analysis of the use of plastics by [11,12] and [13,14] proved the effective use of tire scraps in the stabilization process. The addition of different proportions of the tire scraps improved the strength properties of the soil at an optimum quantity of the tire scraps.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Impact of Wastewater Sachets on the Bearing Capacity of Phyllitic Soil

Anglaaere¹

2021

IJERT

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Soil improvement is a major factor considered when dealing with weak soils for engineering purposes. This report presents the various tests conducted on fiber-reinforced soil with varying fiber content and different aspect ratios. Strips of wastewater sachets were used as a reinforcement material to perform the strength test on the soil. Several Compaction and California Bearing Ratio (CBR) tests were conducted on randomly reinforced soil by alternating the aspect ratio or sizes of plastic strips. The aspect ratios used were 15x10 mm, 15x20 mm and 15x30 mm. The CBR value obtained for the unreinforced soil was 6.85%. The CBR values obtained for the reinforced soil with the plastic fiber of sizes, 15x10 mm, 15x20 mm, and 15x30 mm were 9.31%, 16.91%, and 17.57% respectively. The CBR test results showed that the reinforcement benefit increased with an increase in aspect ratio. Hence, appropriately cut strips of wastewater sachets with optimum sizes would prove useful for soil improvement if mixed with locally available soils in an appropriate quantity. The proposed technique is recommended for embankment/road construction, industrial yards among others.

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“…Researching on the mechanical properties of soil cured by solid waste, Akbulut et al [27] conducted unconfined compression, shear box, and resonant frequency tests on clayey soils modificated by scrap tire rubber and synthetic fibers to investigate their strength and dynamic properties. Ma et al [28] studied the shear strength characteristics and working mechanism of the scrap tire strips treated brick, in terms of large-scale direct shear test. According to research by Vieira and Pereira [29], construction waste mixtures are mainly composed of bricks and concrete, and the mechanical properties of construction waste show low variability.…”

Section: Introductionmentioning

confidence: 99%

Triaxial Shear Test on Hydrochloric Acid-Contaminated Clay Treated by Lime, Crushed Concrete, and Super Absorbent Polymer

Fang

2019

Advances in Materials Science and Engineering

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Acid pollution weakens the bearing capacity of subgrade, and discarded concrete occupies land. The mechanical properties of hydrochloric acid-contaminated clay were investigated by triaxial consolidation undrained tests. Also, the theory of diffusion double electric layer was employed to explain the change principle of cohesion and compression characteristics of hydrochloric acid-contaminated clay. In addtion, the curing effects of lime, crushed concrete, and SAP on the shear strength of hydrochloric acid-contaminated clay were compared. The triaxial test results show that cohesion decreased with the increase of hydrochloric acid concentration. The internal friction angle firstly increased and then decreased, and the change of internal friction angle was less affected by acid concentration. The curing effect of crushed concrete was similar to that of lime, which was better than lime. SAP could only improve the cohesion of the hydrochloric acid-contaminated clay; the internal friction angle decreased significantly; the three kinds of curing materials could significantly improve the cohesion of acid-contaminated clay to be higher than the natural clay, improving the shear strength to a certain extent. Additionally, the theory analysis illustrated that due to the change in the thickness of the diffusion layer between the clay particles, the van der Waals force between the particles changed, and the colloidal formation of the micelles led to changes in cohesion. The study can provide references to the treatment of contaminated soil in engineering practice.

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Large‐Scale Direct Shear Test on Scrap Tire Strip Reinforced Brick Powder

Cited by 5 publications

References 31 publications

Large‐Scale Direct Shear Test on Tire Slice Reinforced Crushed Concrete Particles

Large‐Scale Direct Shear Test on Tire Slice Reinforced Crushed Concrete Particles

Assessment of the Impact of Wastewater Sachets on the Bearing Capacity of Phyllitic Soil

Triaxial Shear Test on Hydrochloric Acid-Contaminated Clay Treated by Lime, Crushed Concrete, and Super Absorbent Polymer

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