Effects of Plastic Waste Materials on Geotechnical Properties of Clayey Soil

Hassan, Hussein Jalal Aswad; Rasul, Jabar; Samin, Maleaha

doi:10.1007/s40515-020-00145-4

Cited by 57 publications

(19 citation statements)

References 40 publications

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“…e same trend was reported by other researchers that plastic waste stabilizer were used [3,38]. Also the MDD of soil increases up to 2% replacement levels and decreases thereafter as the percentage of replacement is increased.…”

Section: Standard Compaction Test Results Tablesupporting

confidence: 84%

A Novel Technique to Utilize Second Waste of Plastic Bottle as Soil Reinforcement: A Comparative Study on Mechanical Properties with Natural Black Cotton Soil

Adane

Araya²,

Karthikeyan

et al. 2022

Advances in Civil Engineering

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Black cotton soils, which are expansive, are present in abundance in Ethiopia. This type of soil possesses expansion when saturated with water and contraction during hot seasons, due to which it is labelled as “weak soil.” They may remain a threat to the structures if they are constructed over them without precautions. The quality of such soils can be improved by treating them with suitable stabilizers or soil reinforcers. This paper discusses the chances of using the second waste of plastic bottles as a reinforcer to strengthen weak black cotton soils in Ethiopia. Second, plastic bottle waste was added at 1%, 2%, 3%, 5%, 7%, and 9% to the soil, and numerous trials were conducted to ensure the reliability of the results. The effects were analyzed based on the results from the Atterberg limit tests, compaction tests, unconfined compression strength (UCS) tests, and the California bearing ratio test (CBR) for soaked and unsoaked conditions. The results were compared against the natural soil results, and the optimum usage percentage of second waste plastic required to reinforce the soil was reported. The results indicate that among the various properties used, the mix with 2% second waste plastic is effective with numerous trials being conducted to ensure the reliability of the results and decreased values of OMC by 18.5%, increased MDD by 1.9%, increased CBR by 50.9%, and increased UCS by 10.1%. Thus, the research provides a novel technique to recycle plastic waste once again as soil reinforcement, thereby saving the environment from dumped waste.

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Section: Standard Compaction Test Results Tablesupporting

confidence: 84%

A Novel Technique to Utilize Second Waste of Plastic Bottle as Soil Reinforcement: A Comparative Study on Mechanical Properties with Natural Black Cotton Soil

Adane

Araya²,

Karthikeyan

et al. 2022

Advances in Civil Engineering

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“…Due to the interaction of soils and the added plastic strips, there would be a resistance created. Hence, there is improvement in soaked CBR with the addition of plastics [24]. A drop in the improvement of soaked CBR can be noticed with higher weight percentages of the leaf ash mixture on all three soils.…”

Section: Results Of Modified Proctor Compaction Tests With the Additi...mentioning

confidence: 80%

Effectiveness of Pozzolanic Leaf Ashes and Plastics on Geotechnical Characteristics

Yathushan

Puswewala

2022

Int. j. eng. technol. innov.

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This study aims to investigate the geotechnical characteristics of three soils by adding waste plastics and a mixture of leaf ashes. The soil stabilizers used in the study are the plastics strips from waste plastic file folders and a mixture of ashes from five naturally occurring pozzolanic leaves in Sri Lanka. The plastics used in this study have a width of 5 mm and aspect ratios of 1, 2, 3, and 4 in the weight percentages 0.5, 1, 2, 4, and 8. The mixture of leaf ashes used is in the weight percentages 2, 4, 6, 8, and 10. The investigated geotechnical characteristics of the soils include the improvement of maximum dry density (MDD), optimum moisture content (OMC), soaked California bearing ratio (CBR), shear strength parameters, plastic index (PI), and Atterberg limits. The results suggest that the optimum improvement in soaked CBR and MDD can be achieved by adding 2% plastics and 6% leaf ash mixture into the soils. Shear strength parameters and PI can also be improved.

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“…Numerous research has verified these materials’ efficiency in altering the characteristics of soils [ 59 , 60 , 61 ]. However, due to their widespread use, these materials are not cost-effective [ 62 , 63 , 64 , 65 , 66 ]. As a result, numerous researchers look for more cost-effective soil stabilizers, such as plastic, tire chips, and rice husks.…”

Section: Introductionmentioning

confidence: 99%

Compaction Characteristics and Permeability of Expansive Shale Stabilized with Locally Produced Waste Materials

et al. 2022

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Waste is available in an abundant form and goes to landfill without any use, creating threats to the environment. Recent and past studies have used different types of waste to stabilize soil and reduce environmental impacts. However, there is a lack of studies on the combined use of marble dust, rice-husk ash, and saw dust in expansive shale soil. The current study tries to overcome such a gap in the literature, studying the effect of marble dust, rice-husk ash, and saw dust on expansive shale’s compaction characteristics and permeability properties. According to unified soil classification and the AAHTO classification system, the geotechnical properties of natural soil are classified as clay of high plasticity (CH) and A-7-5. Several tests are performed in the laboratory to investigate the compaction characteristics and permeability properties of expansive shale. Moreover, permeability apparatus is used to investigate the permeability properties of soil. In addition, due to the accuracy of the apparatus, the conventional apparatus has been partly modified. The experimental results show that the addition of waste to the soil has significantly improved soil stabilization, increasing permeability and decreasing plasticity indexes. In addition, there is a gradual decrease in the dry density of soil and an increase in the permeability of stabilized soil. Based on the outcomes of the current study, it claims and concludes that these waste materials can be used as soil stabilizers or modifiers, instead of being dumped in landfill, which will provide a green, friendly, and sustainable environment. The current study recommends that future researchers use various wastes in the concrete and soil to improve their compaction and mechanical properties.

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Effects of Plastic Waste Materials on Geotechnical Properties of Clayey Soil

Cited by 57 publications

References 40 publications

A Novel Technique to Utilize Second Waste of Plastic Bottle as Soil Reinforcement: A Comparative Study on Mechanical Properties with Natural Black Cotton Soil

A Novel Technique to Utilize Second Waste of Plastic Bottle as Soil Reinforcement: A Comparative Study on Mechanical Properties with Natural Black Cotton Soil

Effectiveness of Pozzolanic Leaf Ashes and Plastics on Geotechnical Characteristics

Compaction Characteristics and Permeability of Expansive Shale Stabilized with Locally Produced Waste Materials

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