Experimental and phenomenological study of the effects of adding shredded tire chips on geotechnical properties of peat

Saberian, Mohammad; Khotbehsara, Mojdeh Mehrinejad; Jahandari, Soheil; Vali, Ramin; Li, Jie

doi:10.1080/19386362.2016.1277829

Cited by 45 publications

(32 citation statements)

References 31 publications

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“…They found that 10% of the used tire chips can improve the internal friction angle and the shear strength of sand. Similar trend was observed by Saberian et al [9] who found that by adding 20% shredded tire chips to sandy peat resulted in increasing the angle of internal friction and cohesion to 39.8° and 94.8 kPa respectively compared with 17.8° and 11.2 kPa for the untreated samples. Moreover, specimen with 10% tire chips provided the maximum unconfined compression strength.…”

Section: Introductionsupporting

confidence: 88%

“…Some properties of such scrap tire rubber are high compressibility, lightweight, high thermal insulation, good long-term durability compared to other geomaterials. [3,[8][9][10] Some studies found that adding rubber materials resulted in improving the shear strength of soil. [11][12][13] However, many other studies such as Kawata et al, [14] Neaz Sheikh et al [15] and Youwai and Bergado [16] have reported significant reduction in the strength of soil due to added rubber materials.…”

Section: Introductionmentioning

confidence: 99%

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Strength and Deformation of Sand-Tire Rubber Mixtures (STRM): An Experimental Study

Al-Rkaby

2019

Studia Geotechnica Et Mechanica

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Waste material such as used tires is increasing every year, which poses environmental problems. However, such material has been used in several geotechnical applications as alternative lightweight backfill in highway embankments and/or behind retaining walls, providing environmental, economic and technical benefits. These applications require knowledge of engineering properties of soil-tire rubber mixtures. The present study aims to show the possibility of tire rubber usage in sand by evaluating the shear strength and deformability of sand mixed with granulated rubber, in weight percentages between 0 and 50%. The tire rubber content was found to influence the stress-strain and deformation behavior of the mixtures. The shear strength of sand mixed with 10% or 20% tire rubber was higher than that measured for sand only. However, the trend for TRC = 30–50% was different. Samples with a rubber content of 30-50% exhibited a rapid decrease in the stress ratio compared with that of sand. The major principal strain at maximum stress ratio was found to increase with increasing tire rubber content. However, it was observed that the lateral strains (minor and intermediate principal strains) of samples reduced significantly with the addition of tire rubber to the sand.

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Section: Introductionsupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Strength and Deformation of Sand-Tire Rubber Mixtures (STRM): An Experimental Study

Al-Rkaby

2019

Studia Geotechnica Et Mechanica

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“…Huge water content (>200%) and porosity are also reasons for huge compressibility of peat (including significant secondary and tertiary compression), low stiffness and low shear strength (ca. 5-20 kPa) [2,[6][7][8]. Peat also shows a tendency to creep [7].…”

Section: Introductionmentioning

confidence: 99%

“…Other characteristic features can include high spatial variability and permeability [2]. Due to the high level of groundwater and peat's low density, the effective tensions are relatively low [7], which shows peat has weak geotechnical properties [8].…”

Section: Introductionmentioning

confidence: 99%

Methods Development for the Constrained Elastic Modulus Investigation of Organic Material in Natural Soil Conditions

Meyer

Olszewska

2021

Materials

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Compressibility is one of the most important mechanical properties of soil. The parameter that characterizes compressibility is the constrained modulus of elasticity. Knowledge of this is important to calculate the settlement of a structure foundation on peat material. According to soil classification by EN ISO 14688-2, peat is an organic soil that contains min. 20% organic matter. It is a highly organic type of soil. Peat material has large compressibility. The value of the constrained elasticity modulus for peat is ca. 400 kPa, while it may be ca 1.0–1.6 MPa for consolidated peat. Due to the extensive range of the modulus, experimental research in this field is proposed. It is suggested to load the peat material layer with an embankment and to determine its total settlement. Based on this, a program was developed to determine the settlement–strain relationship. The authors propose an approach according to two models: the first is based on constant stress distribution in the soil with an oedometer test. The second considers the variability of stresses in the soil and the influence of the loaded area. Both methods were tested based on numerical simulations, and then an experimental field in Szczecin was used. The formulae for the constrained modulus of elasticity measurement were derived; in practical conditions, a uniaxial deformation state can be used with the combination of the total settlement.

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“…In recent years, civil engineers have focused on soil improvement methods that are not only economical but also compatible with the environment in reducing the energy consumption for production of building materials [13,20,32,60,61]. Employing locally available materials such as industrial and agricultural wastes for the construction industry is an alternative to decrease the production costs of building materials and environmental contamination [24,29,33,59].…”

Section: Introductionmentioning

confidence: 99%

Effects of the inclusion of industrial and agricultural wastes on the compaction and compression properties of untreated and lime-treated clayey sand

Irani

Ghasemi

2020

SN Appl. Sci.

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The reuse of industrial and agricultural wastes is an alternative method to provide low-cost building materials for the construction industry and reduce the environmental pollutions. This study evaluates the feasibility of using a couple of waste materials including palm fiber, palm fiber ash and fiber bundles both individually and in combination with lime to improve strength characteristics of clayey sand. A series of laboratory tests were performed on samples cured for 7, 14, 28 and 56 days to investigate the compaction properties, unconfined compressive strength (UCS) and failure characteristics of the untreated and lime-treated clayey sand. The results demonstrate that the application of all the additives resulted in a noticeable increase in strength, and both treated and untreated specimens exhibited more ductile behavior. It was also revealed that the mixture of lime and fiber performed more impressively compared to that of lime and fiber individually and the UCS of the improved specimens depends on fiber length and curing period. Inclusion of the various proportions of palm fiber, palm fiber ash and lime increased the optimum moisture content (OMC) and decreased the maximum dry density (MDD), while the addition of fiber bundles decreased the value of MDD and OMC. Palm fiber ash was more effective in increasing the UCS of specimens, and fiber bundles had the most significant impact on the variations of compaction properties.

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Experimental and phenomenological study of the effects of adding shredded tire chips on geotechnical properties of peat

Cited by 45 publications

References 31 publications

Strength and Deformation of Sand-Tire Rubber Mixtures (STRM): An Experimental Study

Strength and Deformation of Sand-Tire Rubber Mixtures (STRM): An Experimental Study

Methods Development for the Constrained Elastic Modulus Investigation of Organic Material in Natural Soil Conditions

Effects of the inclusion of industrial and agricultural wastes on the compaction and compression properties of untreated and lime-treated clayey sand

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