Performance of plastic waste for soil improvement

Farah, Rowad Esameldin; Nalbantoğlu, Zalihe

doi:10.1007/s42452-019-1395-2

Cited by 13 publications

(4 citation statements)

References 12 publications

(16 reference statements)

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“…Additionally, the study demonstrated that including plastic waste improves flexible pavement properties, including the CBR value. Farah and Nalbantoglu's study [22] noted that blending sand with 0.50 % and 0.75 % plastic waste increased the peak and critical friction angles. Adding waste bottle plastic chips to the sand enhanced its shear strength.…”

Section: Discussionmentioning

confidence: 94%

Utilization of Plastic Waste in Reinforcing Sandy Soil for Sustainable Engineering Applications

Suthar,

Meena,

Kumar

2024

JES

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Large quantities of polyethylene terephthalate (PET) plastic are discarded into the environment during production, application, and disposal. Although current clean-up strategies aim to mitigate the adverse impacts of PET pollution, efforts struggle to keep up with the escalating amount of PET waste. This accumulation of PET waste poses significant threats to ecosystems worldwide. One recycling method for PET plastic waste involves its utilization in soil reinforcement applications within civil engineering. By incorporating PET plastic waste to reinforce poor-quality sands, sustainable construction practices can be promoted in civil engineering infrastructures, addressing multiple aspects of sustainability, including engineering, economic, social, and environmental considerations. The experimental work conducted in this research involved sieve analysis, proctor compaction test, California Bearing Ratio (CBR) test, and direct shear box test. The sand was reinforced with varying percentages of PET plastic waste flakes, namely 5, 10, and 15 %, with respect to the weight of the soil sample taken for the test, and laboratory tests were performed on the samples. Including PET plastic flakes enhanced various soil properties, such as shear strength and friction angle. It also improved the CBR value of the composite, making it suitable for pavement construction. The reduction in dry density further supports the application of the composite in lightweight structures. In conclusion, the geotechnical material obtained from the soil-PET plastic waste composite can be utilized in various geotechnical projects, including landfills and slope stabilization.

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Section: Discussionmentioning

confidence: 94%

Utilization of Plastic Waste in Reinforcing Sandy Soil for Sustainable Engineering Applications

Suthar,

Meena,

Kumar

2024

JES

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“…A decrease in plastic limit of 8.02% is observed as plastic powder percentages increase from 0 to 1%, followed by a 40% increase in plastic limit up to the 1-4% range for plastic powder contents. This change in mixture consistency is due to the quality of the mixture composition [17], its ability to exchange cations, and the high amount of clay minerals in the mixtures.…”

Section: 12plastic Limitmentioning

confidence: 99%

Exploring the Influence of Plastic Powder Incorporation on Geotechnical Properties of Expansive Soil Stabilized with Granite Powder for Building Applications

Sellaf,

Benamar,

Hadj Mostefa

2024

JERA

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An experimental study was undertaken to investigate the effect of plastic and granite waste powder on the geotechnical performance of expansive soil, using different mix ratios. The soil studied is Hachem, in the northwestof Algeria. In this context, first reinforcing the plastic powder with granite powder, then add the mixture to the expansive soil. The percentage of plastic powder is (0%, 1%, 2%, 3%, 4%) and reinforced at 2%, 4%, 6% and 8% with granite powder. The experimental results showed a gradual decrease in liquid limits, swell potentials, and swelling pressure as the proportions of plastic and granite powder increase. In terms of the results obtained by reducing swelling and swelling pressure values and increasing unconfined compressive strength (UCS) tests and ductility values, this mixture of waste plastics and granite can be of great importance in improving the mechanical properties of samples.

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“…Plastic consumption per capita in Ethiopia has increased by approximately 13.1 percent per year in recent years, rising from 0.6 kilograms in 2007 to 2.8 kilograms in 2018, and is expected to reach 3.8 kilograms in 2020. Use of plastic waste has already been tried by earlier researchers in many forms, Farah, and Nalbantoglu [26], discussed the performance of plastic waste for improving soil properties. Peddaiah, et al [27] tried using plastic waste in the form of strips and improving the soil characteristics.…”

Section: 13mentioning

confidence: 99%

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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Performance of plastic waste for soil improvement

Cited by 13 publications

References 12 publications

Utilization of Plastic Waste in Reinforcing Sandy Soil for Sustainable Engineering Applications

Utilization of Plastic Waste in Reinforcing Sandy Soil for Sustainable Engineering Applications

Exploring the Influence of Plastic Powder Incorporation on Geotechnical Properties of Expansive Soil Stabilized with Granite Powder for Building Applications

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

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