Tire-reinforced earthfill. Part 1: Construction of a test fill, performance, and retaining wall design

Garga, Vinod K.; O'Shaughnessy, Vince

doi:10.1139/cgj-37-1-75

Cited by 23 publications

(23 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Based on tire properties (e.g., unit weight, high hydraulic conductibility, and high elastic deformability), soil-tire mixtures have been used in civil engineering applications such as lightweight material in retaining wall back lls [1][2][3][4][5][6][7][8][9][10][11], slope stabilizer, drainage system, land ll leachate collection material, highway crash barrier, sound barrier ll, pavement frost barrier, rubber asphalt pavement [8,12], fuel-supplement [10], reinforcement layer [8], and soil improvement material [13].…”

Section: Introductionmentioning

confidence: 99%

Experimental study on behavior of soil-waste tire mixtures

2017

View full text Add to dashboard Cite

Abstract. Waste tires are extensively being used in civil engineering applications to improve exibility and elastic properties of the base foundation material. Moreover, by using pure tires or soil-tire mixtures, rubber stockpiles, which cause lots of environmental contaminations, are being consumed. The objective of this research is to study the strength and elastic modulus variations of sands when combined with rubber materials in di erent sizes and percentages. Triaxial experiments were performed on various sand-rubber mixtures using static triaxial apparatus. Samples were constructed at the maximum dry density and optimum moisture content to consider engineering applications in dry regions. The results show that rubber content and rubber-sand particle size ratio, D 50;r =D 50;s , signi cantly a ect the mixture behavior in the manner which increase in the former and decrease in the latter, leading to a more softening behavior. Furthermore, speci c combination of sand and rubber, which may improve the elastic properties of the mixture, is proposed as a exible base layer.

show abstract

Section: Introductionmentioning

confidence: 99%

Experimental study on behavior of soil-waste tire mixtures

2017

View full text Add to dashboard Cite

show abstract

“…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. Other applications have been trialled in many other countries, mainly in slope reinforcement and retaining walls (Garga and O'Shaughnessy, 2007).…”

Section: Introductionmentioning

confidence: 99%

Study of a small scale tyre-reinforced embankment

Xiao

Ferreira

et al. 2016

Geotextiles and Geomembranes

View full text Add to dashboard Cite

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.

show abstract

“…Early studies of sand-rubber mixtures were prompted by the large number of discarded tires (Edil and Bosscher 1994;Tatlisoz et al 1997;Rubber Manufacturers Association 2006). Eventually, many construction applications of sand-rubber mixtures, or rubber chips alone, were explored, including highway embankments (Bosscher et al 1997;Nightingale and Green 1997;Heimdahl and Druscher 1999), lightweight fill (Ahmed and Lovell 1993;Masad et al 1996;Lee et al 1999), backfill for retaining walls (Humphrey and Manion 1992;Humphrey et al 1993;Garga and O'Shaughnessy 2000), and subsurface drainage systems (Nagasaka et al 1996).…”

Section: Introductionmentioning

confidence: 99%

Sand–rubber mixtures (large rubber chips)

2008

View full text Add to dashboard Cite

Mixtures of small rigid sand particles D s and large soft rubber particles D r are prepared at different volume fractions and tested to investigate their small-strain and zero-lateral strain responses (D r /D s & 10). Both data sets are simultaneously gathered in an oedometer cell instrumented with bender elements. Data are analyzed in the context of mixture theory and with the aid of numerical simulations. Results show that the sand skeleton controls the mixture response when the volume fraction of rubber particles is Vrubber 0.3, while the rubber skeleton prevails at Vrubber 0.6. The large size and incompressibility of rubber particles provides high stress-induced stiffness in the sand skeleton near the equatorial plane of rubber particles. The corresponding increase in local small-strain shear modulus Gmax results in earlier wave arrivals in mixtures with Vrubber 0.3 than in pure sand, while the quasi-static constrained modulus is highest in pure sand. The constrained modulus and shear wave velocity are power functions of the applied effective stress in all mixtures. Results from this study (Dr /Ds & 10) and from a previous complementary study with small rubber particles (Dr /Ds = 0.25) show that the development of internal fabric, particle level processes, and the associated macroscale response of sand-rubber mixtures depend on the relative size between the soft rubber chips and the stiff sand particles Dr /Ds and their volume fractions.Résumé : Des mélanges de petites particules rigides de sable D s et de larges particules molles de caoutchouc D r ont été préparés à différentes fractions de volume et testés pour étudier leur réaction à de petites contraintes et à déformation laté-rale nulle (D r /D s &100). Les deux ensembles de données ont été simultanément regroupées dans une cellule oedométrique instrumentée avec des languettes piézocéramiques. Les données ont été analysées dans le contexte de la théorie du mé-lange et avec l'aide de simulations numériques. Les résultats montrent que le squelette de sable contrôle la réaction du mé-lange lorsque la fraction du volume de particules de caoutchouc est V rubber 0,3, alors que le squelette de caoutchouc domine à V rubber 0,6. La grande dimension et l'incompressibilité des particules de caoutchouc fournit une forte rigidité induite par la contrainte dans le squelette de sable près du plan équatorial des particules de caoutchouc. L'accroissement correspondant du G max local résulte en des arrivées plus hâtives des ondes dans les mélanges avec V rubber 0,3 que dans le sable pur, alors que le module quasi-statique sous contrainte est le plus élevé dans le sable pur. Le module sous contrainte et la vélocité des ondes de cisaillement sont des fonctions de puissance de la contrainte effective appliquée dans tous les mélanges. Les résultats de cette étude (Dr /DS & 10) et à partir d'une étude complémentaire antérieure avec de petites particules de caoutchouc (Dr /Ds = 0,25) montrent que le développement d'une fabrique interne, que les processus de niveau de particules...

show abstract

Tire-reinforced earthfill. Part 1: Construction of a test fill, performance, and retaining wall design

Cited by 23 publications

References 0 publications

Experimental study on behavior of soil-waste tire mixtures

Experimental study on behavior of soil-waste tire mixtures

Study of a small scale tyre-reinforced embankment

Sand–rubber mixtures (large rubber chips)

Contact Info

Product

Resources

About