Dynamic Behaviour of Sand–Crumbed Rubber Mixture at Low Strain Level

Das, Sukanta; Bhowmik, Debjit

doi:10.1007/s10706-020-01458-4

Cited by 18 publications

(7 citation statements)

References 25 publications

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“…With respect to static behaviour due to static loading one may mention the work by Foose et al (1996), Zornberg et al (2004), Becker and Vrettos (2011). In respect of cyclic behaviour evaluated using cyclic simple shear and cyclic triaxial apparatuses, one may acknowledge the works by Nakhaei et al (2012), Kaneko et al (2013), Mashiri et al (2016), Li et al (2016), Madhusudhan et al (2018), Bahadori and Farzalizadeh (2018), Banzibaganye et al (2019), Hazarika et al (2020), Amuthan et al (2020), Das and Bhowmik (2020), Madhusudhan et al (2020), Rios et al (2021) Banzibaganye and Vrettos (2022). The dynamic behaviour of sand rubber mixtures was evaluated in few studies using a resonant column device.…”

Section: Introductionmentioning

confidence: 99%

Resonant Column Tests on Mixtures of Different Sands with Coarse Tyre Rubber Chips

Banzibaganye

Vrettos

2022

Geotech Geol Eng

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The dynamic behaviour of unsaturated sand rubber chips mixtures at various gravimetric contents is evaluated through an experimental study comprising resonant column tests in a fixed-free device. Chips were irregularly shaped with dimensions ranging from 5 to 14 mm. Three types of sand with different gradation have been considered. Relative density amounted to 0.5 for all specimens. Due to the large size of the chips, the diameter of the specimens had to be equal to 100 mm, which in turn required a re-calibration of the device assuming a frequency-dependent drive head inertia. The effects of confining stress, rubber chips content, and sand gradation on shear modulus and damping ratio are determined over wide ranges of the shear strain. At small strains, as known for sands, increasing the confining stress stiffens the mixtures. Increasing the rubber chips content reduces significantly the shear modulus and increases the damping ratio. At higher strains, increasing the confining stress or the rubber content flattens the reduction of the shear modulus with strain. Damping at high strains does not show any appreciable dependence on rubber content. Unloading–reloading sequences are used to assess shear modulus degradation and threshold strains. Finally, design equations are derived from the test results to predict the dynamic response of the composite material.

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Section: Introductionmentioning

confidence: 99%

Resonant Column Tests on Mixtures of Different Sands with Coarse Tyre Rubber Chips

Banzibaganye

Vrettos

2022

Geotech Geol Eng

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“…The size of the CR varied from 0.075 to 2.36 mm. The sand was taken as locally available Barak river sand and the properties are available in previous studies on SCR mix [37][38][39]. The variation of the G with CR percentage is presented in Fig.…”

Section: Scr Mixturementioning

confidence: 99%

Numerical Investigation on Vibration Screening Using Geofoam and Sand–Crumb Rubber Mixture Infilled Trench

Sarkar

Barman

Bhowmik

2021

Int. J. of Geosynth. and Ground Eng.

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This study investigates the application of a composite layer of geofoam and sand-crumb rubber infilled trench (GSFT) as a wave barrier. Rubber is a waste material and its safe disposal is a matter of concern. A numerical investigation was carried out using a two-dimensional finite element method (FEM) in ABAQUS software. A machine foundation was considered as the source of vibration and the screening efficiency was evaluated by calculating the Amplitude Reduction Factor (A r ). The performance of the GSFT was evaluated by varying the loading frequency, location of the trench, trench geometry and the proportion of geofoam and sand-crumb rubber (SCR) mixture. The effect of slenderness ratio and cross-sectional area was found to be critical for trench design. The findings of this study were in good agreement with previous studies on Expanded polystyrene (EPS) geofoam infilled trench and SCR infilled trench. It was observed that GSFT performed similar to the EPS geofoam infilled trench and was better than SCR filled trench. Therefore, it is proposed that GSFT can be used as a potential alternative to the EPS geofoam wave barrier by not only cutting down the cost but also as an eco-friendly alternative.

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“…The sand-crumb rubber layer reduces earthquake reactivity and construction damage. By studying crumb rubber under minor strain circumstances, Das and Bhowmik [23,24] conducted torsional resonance column tests to investigate the dynamic characteristics of Barak river sand and crumb rubber-sand mixture. All samples showed that relative density improves dynamic shear modulus and decreases damping ratio.…”

Section: -Introductionmentioning

confidence: 99%

The Effect of Sand-Crumb Rubber Mixture Treatment on the Seismic Response of a Low-Rise Building Located on Liquefiable Soil

Tareghian,

Baradaran,

Akhtarpour

2024

Preprint

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One of the most effective measures to reduce earthquake risks in high-seismic areas is to reduce the input forces caused by earthquakes to the structure. The properties of rubber materials in geotechnical projects are energy absorption, dynamic deformation change as well as damping of latent energy in loads, high shear modulus and damping ratio, easy access and their economic nature. In this research, with finite difference modeling, the effect of using sand- crumb rubber layer on the seismic behavior of the model has been obtained. In the following, by changing the thickness and depth of the sand-crumb rubber layer, the seismic behavior such as floor displacement and internal forces have been investigated. This research numerically models liquefaction (UBCsand with FLAC) and predicts the effects of the sand-crumb rubber layer of different thicknesses under the foundation and evaluates the structure's damage and settlement interacting with the soil by validating the numerical model with the laboratory model and calibrating it with different ratios. The results show that liquefaction, pore water pressure excess ratio and soil settlement will be significantly reduced with the presence of sand-crumb rubber layer, and also the base shear has shown an increase, but the structural damage is reduced.

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Dynamic Behaviour of Sand–Crumbed Rubber Mixture at Low Strain Level

Cited by 18 publications

References 25 publications

Resonant Column Tests on Mixtures of Different Sands with Coarse Tyre Rubber Chips

Resonant Column Tests on Mixtures of Different Sands with Coarse Tyre Rubber Chips

Numerical Investigation on Vibration Screening Using Geofoam and Sand–Crumb Rubber Mixture Infilled Trench

The Effect of Sand-Crumb Rubber Mixture Treatment on the Seismic Response of a Low-Rise Building Located on Liquefiable Soil

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