Laboratory Study on the Mechanical Behavior of Tire Chip-Sand Mixture

Lok, T. M. H.; Yu, Han

doi:10.1061/40866(198)20

Cited by 5 publications

(3 citation statements)

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“…In the samples with rubber content of less than 40%, the dilatancy behaviour is clearer while for samples with rubber content more than 40% the compressive behaviour is more evident. Hence the 40% sample could be introduce as a boundary between sand-like behaviour and rubber-like behaviour that is in agreement with literature [6].…”

Section: Sample Generationsupporting

confidence: 88%

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Three-dimensional numerical simulation of mechanical properties of soil-tire mixture by discrete element method

Asadi

Mahboubi

2019

E3S Web Conf.

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Soil engineering properties can be improved employing different methods. Among them is mixing soil with tire derived additives (TDA). TDAs generally increase some parameters of mixture such as damping ratio, permeability, ductility and also in some cases shear strength. Various properties of TDAs from mechanical properties to their geometry can affect the mixture behavior. In this paper using the YADE platform, simulations of triaxial tests on sand tire mixtures are presented. To take compressibility into consideration, each rubber crumb particle is made of several spheres connected elastically to each other. For sand particle generation the clump technique was employed. Shapes of both sand and rubber particles are inspired from real grains. As properties of sand and rubber are different, especially Young modulus, rubber sand interaction is considered as soft rigid contact. Therefor harmonic average and arithmetic average was used to compute contact Young modulus (and then stiffness). The model was validated by comparison of results of triaxial tests simulation on pure rubber sample with literature ones which both exhibited linear stress-strain curve. Then triaxial tests with different sand to rubber ratio were simulated to see whether harmonic average or arithmetic average gives the best match to literature. The results show shear strength reduces by decreasing of sand to rubber ratio. This is the same as what is reported in literature.

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Section: Sample Generationsupporting

confidence: 88%

“…If  , then equations (6) and (7) would lead to the same value; however in the case of different young modulus the computed values form equations (6) and 7would not be the same. This paper uses both methods to see which one would lead to more realistic results when comparing with the literature.…”

Section: Contact Lawmentioning

confidence: 99%

Three-dimensional numerical simulation of mechanical properties of soil-tire mixture by discrete element method

Asadi

Mahboubi

2019

E3S Web Conf.

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“…The mechanical behavior of tire-sand mixture is better than pure sand, especially in the shear strength. Most of the researches reported that the strength of tire-sand mixtures is higher than that of pure sand (Edil, 2005;Edinçliler, Baykal, and Saygili, 2010;Foose, Benson, and Bosscher, 1996;Lok and Yu, 2006;Marto et al, 2013;Singh and Vinot, 2011;Zornberg, Cabral, and Viratjandr, 2004). However, a few experimental studies on small size tire chips reported that the strength decreased with increasing amount of rubber (Neaz et al, 2013;Youwai and Bergado, 2003).…”

Section: Scrap Tires and Their Reuse In Construction Projectsmentioning

confidence: 99%

Potential of Using Cemented Soil-Tire Chips Mixture as Construction Fill: a Laboratory Study

Xin

Liu

et al. 2015

Journal of Coastal Research

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Xin, L.; He, J.; Liu, H., and Shen, Y., 2015. Potential of using cemented soil-tire chips mixture as construction fill: A laboratory study.Waste materials that are generated in large quantities, such as waste rubbers, plastics, and dredged soils, can potentially be reused as fill materials in construction projects. It will bring both economical and environmental benefits. This paper firstly presents a review on different methods of reusing scrap tires and waste soils in constructions. Then, a new method of using these two wastes as a fill material is proposed and experimentally evaluated. The material is formed by mixing waste soils, scrap tire chips, Portland cement, and water together in varying proportions. Isotropic compression and triaxial consolidated undrained compression tests were carried out. The geotechnical properties of the material with varying additions of different components are investigated. It is found that adding more tire chips in the material leads to an evident improvement in the undrained strength; while the compressibility of the specimens with 0-60% tire chips content (to dry soil by weight) does not change very much. The test results also manifest that increasing cement content is an effective way to reduce the compressibility and improve the undrained strength, indicating that the mechanical behavior of the material can be well controlled by adjusting the cement addition. Thanks to its advantageous features such as small compressibility and adjustable strength, the material is suitable for quaywall backfill and embankment fill in port or transportation constructions. LITERATURE CITEDArroyo, M.; Martin, I.S.; Olivella, S., and Saaltink, M.W., 2011. Evaluation of self-combustion risk in tire derived aggregate fills. Waste Management, 31(9-10), 2133-2141. Bobet, A.; Hwang, J.; Johnston, C.T., and Santagataa, M., 2011.One-dimensional consolidation behavior of cement-treated organic soil.

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