Laboratory Study on Properties of Rubber-Soils

Ahmed, Imtiaz

doi:10.5703/1288284314210

Cited by 99 publications

(56 citation statements)

References 13 publications

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“…The effect of compaction effort on the unit weight of tire shred and soil mixture decreases as tire shred/soil ratio increase. The effect of compaction energy is small for tire/soil mixture with tires greater than 20% in dry weight (Ahmed, 1993).…”

Section: Dry Unit Weightmentioning

confidence: 98%

“…Fill material with low permeability under a saturated condition induces slope failure due to generation of excessive pore pressure. Compacted tire shred has hydraulic conductivity values equivalent to that of typical coarse gravel which ranges from 2.0 cm/s to 0.75 cm/s (Ahmed, 1993) …”

Section: Hydraulic Conductivitymentioning

confidence: 99%

“…According to Ahmed (1993), the ratio of tire chip and sand at maximum shear strength is approximately 39% at low to medium confining stress. This is thought to be an optimum ratio for a tire shred and sand mixture for light-weight fill.…”

Section: Shear Strengthmentioning

confidence: 99%

“…The unit weight of the mixture of tire shreds and soil increases as the soil content increases. Ahmed (1993) conducted triaxial tests with various mixing ratios of tire shred (0.5 in and 1 in) and granular soil. The tire shred/mix ratio varied from 0% to 67% by weight.…”

Section: Optimum Mixing Ratio Of Tire Shreds and Granular Materialsmentioning

confidence: 99%

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Construction of Tire Shreds Test Embankment

Salgado¹,

Yoon²,

Siddiki³

2003

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Prepared in cooperation with the Indiana Department of Transportation and Federal Highway Administration. AbstractAccording to recent research, it is estimated that there are more than 500 million tires stockpiled across the United States, and 270 million more are generated each year. A significant number of tires are left in empty yards and even dumped illegally. Tires have characteristics that make them not easy to dispose, and potentially combustible. For these reasons, there is a strong need to find beneficial ways to recycle or reuse tires. Civil engineering applications constitute one of biggest markets for scrap tires. Tire shreds can be used as fill material, for example.The objective of this research is to evaluate the feasibility of using a mixture of tire shreds and soil as fill material for embankments on the basis of field instrumentation and tests. Successful construction and performance of tire shred embankments may promote using tire shred as fill material, with large benefits to society. The present research project consists of construction of test tire shred and soil embankment as well basic laboratory tests for material property characteristics and instrumentation of the embankment. The instrumentation includes settlement monitoring using settlement plates, vertical and horizontal inclinometer monitoring, temperature monitoring and groundwater quality analysis. The performance of the embankment is evaluated based on field instrumentation and visual observation.17.

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Section: Dry Unit Weightmentioning

confidence: 98%

Section: Hydraulic Conductivitymentioning

confidence: 99%

Section: Shear Strengthmentioning

confidence: 99%

Section: Optimum Mixing Ratio Of Tire Shreds and Granular Materialsmentioning

confidence: 99%

See 2 more Smart Citations

Construction of Tire Shreds Test Embankment

Salgado¹,

Yoon²,

Siddiki³

2003

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“…1.0E+02 higher values corresponding to tire rubber containing steel inclusions [26,48,49]. For a tire rubber layer, assumed were the tire density of 1.2 g/cm 3 , the porosity of 0.55, and the f oc value of 0.75.…”

Section: Figurementioning

confidence: 99%

Beneficial Use of Scrap Tires for Retardation of Pesticide Movement in Golf Courses

Patel¹,

Divecha²,

Shah³

2016

Adv Recycling Waste Manag

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Small Strain Stiffness of Sand‐Rubber Mixtures With Particle Size Disparity Effect

Liu,

Yin

2024

Num Anal Meth Geomechanics

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This study systematically investigates the small‐strain stiffness of sand‐rubber mixtures, focusing on combined particle disparity—both larger sand with smaller rubber and smaller sand with larger rubber—using the discrete element method. The effectiveness of various state variables in capturing stiffness behavior across different rubber contents and size disparities (SDs) is evaluated. Conventional state variables developed for natural sands, such as void ratio and mechanical void ratio were found to be less effective in describing the small‐strain stiffness characteristics of sand‐rubber mixtures due to distinct properties of rubber. This study then demonstrates that the stiffness contribution of rubber materials could be negligible, emphasizing that particle property disparity is more significant than SD between sand and rubber materials. Therefore, an adapted state variable, considering only active sand particles, shows improved performance for capturing the correlation between small‐strain stiffness with increasing rubber contents, suggesting its potential utility over conventional variables. Additionally, a refined void ratio, including inactive sand particles but excluding rubber, offers a practical alternative for capturing small‐strain stiffness in experimental and engineering practices, aligning with previous experimental observations. These findings underscore the need for developing more effective state variables that accurately reflect the interactions within heterogeneous materials like sand‐rubber mixtures.

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Laboratory Study on Properties of Rubber-Soils

Cited by 99 publications

References 13 publications

Construction of Tire Shreds Test Embankment

Construction of Tire Shreds Test Embankment

Beneficial Use of Scrap Tires for Retardation of Pesticide Movement in Golf Courses

Small Strain Stiffness of Sand‐Rubber Mixtures With Particle Size Disparity Effect

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