Scrap Tire-An Attractive Material for Gravity Retaining Walls and Soil Reinforcement

Sayão, Alberto; Gerscovich, Denise Maria Soares; Medeiros, L. V.; Sieira, Ana Cristina Castro Fontenla

doi:10.5276/jswtm.2009.135

Cited by 13 publications

(8 citation statements)

References 6 publications

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“…In the 1990's, another retaining wall, 4 m high and 60 m long, in Brazil, was also reinforced using tyres (Sayão et al, 2009). The results of the tests performed on both structures have confirmed the suitability of tyres to be used as reinforcement in slopes or retaining walls.…”

Section: Introductionmentioning

confidence: 75%

Study of a small scale tyre-reinforced embankment

Xiao

Ferreira

et al. 2016

Geotextiles and Geomembranes

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a b s t r a c tTyre-reinforced soil, used to improve slope stability, retaining walls, etc., has an excellent mechanical performance, and has the capability of a wider application and of reducing waste disposal costs. This article studies the stress and deformation characteristics, as well as the influencing factors related to the reinforcing arrangement, through small scale model embankment tests. It is shown that tyre reinforcement highly improved the strength of the model embankments; much higher stresses were mobilised inside the soil mass (around 2 times higher in comparison with the unreinforced embankment). There is an obvious plastic flow in the unreinforced embankment, while the plastic zone, on the reinforced embankments, was difficult to determine. Comparisons between the vertical settlement of the embankments show that the settlement of the reinforced embankment is roughly half of the settlement of the unreinforced embankment, for the same vertical load applied. These results also show that the tests with the top layer of reinforcement nearer the load application area and a smaller distance between the intermediate layers have a better performance, particularly in dense fabrics. The location of the top reinforcement layer seems to dominate the failure modes of the reinforced and unreinforced embankments, the horizontal deformations and the location of the shear bands in the embankment.

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Section: Introductionmentioning

confidence: 75%

Study of a small scale tyre-reinforced embankment

Xiao

Ferreira

et al. 2016

Geotextiles and Geomembranes

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“…Due to these difficulties for recycling, most of the old tires are destined to the production of energy [1,3,7,8]. A smaller part is used for the manufacturing of floors and the modification of asphalt concrete and other applications [1,[9][10][11].…”

Section: Introductionmentioning

confidence: 99%

A New Sustainable Geotechnical Reinforcement System from Old Tires: Experimental Evaluation by Pullout Tests

Hidalgo

Bustamante-Hernández

2020

Sustainability

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The tires used constitute an environmental problem that remains unsolved. It is observed that the automotive fleet and therefore the generation of tires increases year after year, so the recovery and reuse processes are insufficient. For several years, the reuse of tires as materials in the construction has been considered, and several techniques have been developed for the construction of retaining walls and road reinforcement. However, to date, their use remains sporadic. This article presents the theoretical and experimental evaluation of a new geotechnical reinforcement system from used tires. This system, suitable for the construction of containment structures and the reinforcement of roads, is characterized by the conformation of cells that do not require other elements apart from the tires and the filling material. A mathematical model was developed to describe the behavior of the system and pullout tests were carried out for validation. The tests were performed with different tire and compacted granular material with different energies. The results allow validating the theoretical model by showing an increase in pullout resistance with the density and number of tires in the arrangement. It is observed that the coincidence between the model and the tests improves as the stiffness of the soil increases, being the degree of compaction fundamental for the operation.

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“…[16] After the Wenchuan earthquake in China, the landslide after the earthquake was treated by the technology of reinforcing retaining walls with waste tires and ecological slope protection [17]. Sayão et al [18] built a 60 m long prototype soil-tire retaining wall with layers of tires filled with compacted soil.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of the Shear Performance of Scrap Tire‐Granular Material Composite Columns

Wang

Nie

Zhao

et al. 2020

Advances in Civil Engineering

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Scrap tires filled with granular materials can be used for geotechnical engineering. However, when subjected to earthquakes and other conditions, shear failure occurs between the tires. In this paper, eight groups of tire-sand composite columns are prepared and tested under shear strength tests. Different vertical forces, sand densities, and loading modes are considered to investigate the shear performance. The failure patterns, load-displacement curves, and stress-strain curves are observed. The results show that the shear failure of composite undergoes three typical stages: overall flexural lateral displacement, transverse compression, and relative interfacial slip. Under monotonic loading, the restriction of the transverse deformation of the composite column is enhanced with increasing vertical force. The overall antidisturbance ability of the composite is enhanced with increasing sand density. The cyclic loading mode can improve the lateral stiffness of the tire-sand composite. The relative motion between the tire-sand interfaces has two forms: elastic creep and interface sliding. Under the hoop effect of the tire, the pores between the particles produce a pseudocohesive force, which causes the shear strength of the tire-sand composite to be higher than that of common sand. A formula is obtained to describe the stress-strain variations in the composite under different vertical forces.

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Scrap Tire-An Attractive Material for Gravity Retaining Walls and Soil Reinforcement

Cited by 13 publications

References 6 publications

Study of a small scale tyre-reinforced embankment

Study of a small scale tyre-reinforced embankment

A New Sustainable Geotechnical Reinforcement System from Old Tires: Experimental Evaluation by Pullout Tests

Experimental Study of the Shear Performance of Scrap Tire‐Granular Material Composite Columns

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