The Effect of Curing Time on the Engineering Properties of Sawdust and Lime Stabilized Expansive Soils

Niyomukiza, John Bosco; Wardani, Sri Prabandiyani Retno; Setiadji, Bagus Hario

doi:10.2991/aer.k.200220.033

Cited by 8 publications

(15 citation statements)

References 9 publications

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“…However, samples cured in water for four days for the same mixture (M-4) had values of 4.54% and 20.49%, respectively, at 56 days which is an increase of 350%. This result is consistent with the results in the study of Niyomukiza et al in the literature (Niyomukiza et al, 2019).…”

Section: Waste Utilizationsupporting

confidence: 94%

Waste utilization to enhance performance of road subbase fill

Onturk

Fırat

Yilmaz

et al. 2021

JEDT

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Purpose The purpose of this study is to use waste materials in construction to create sustainable practices. This will contribute towards circular economy which has gained momentum in recent years throughout the world. Design/methodology/approach Waste materials cause enormous environmental problems that can have an adverse effect on the environment. Recycling of waste consists an important part of the circular economy. Therefore, researchers have been investigating the economic use of a variety of waste materials for reducing their environmental impact. One potential usage is in road subbase fill materials where wastes can be incorporated in large quantities. In this study, the engineering properties of road subbase fill materials (i.e. kaolinite) mixed with Granite Waste (GW), coal Fly Ash (FA) and lime are investigated. Kaolinite was replaced with 15% lime and FA, whereas the GW replacement varied from 10% to 20%. Testing included strength of the various soil compositions subjected to different curing times. Also the microstructural analyses and phase changes of samples were conducted using scanning electron microscopy and x-ray diffraction techniques, respectively. The results obtained indicate that GW can be incorporated in road base materials to improve its bearing capacity. The mixture consisting of 15% lime, 15% FA, 20% GW and 50% kaolinite resulted in maximum dry unit weight and optimum moisture content. Using GW exhibited a noticeable increase in the California Bearing Ratio of more than eight times at 1 day and 28 days curing regime compared with the control sample. Findings This study shows that GW and FA can be used for road subbase materials and can contribute toward a better and cleaner environment. Originality/value In this study, the engineering properties of road subbase fill materials (i.e. kaolinite) mixed with GW, coal FA and lime are investigated. This are value added in circular economy.

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Section: Waste Utilizationsupporting

confidence: 94%

Waste utilization to enhance performance of road subbase fill

Onturk

Fırat

Yilmaz

et al. 2021

JEDT

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“…Therefore, a decrease in soil plasticity index indicates a decrease in swelling characteristics of the modified soil. Different researchers ( Syafrudin et al, 2022;Ikeagwuani et al, 2019;Niyomukiza et al, 2020b;Ogundipe & Olumide, 2013) who conducted various studies on soil stability confirmed that a decrease in the plasticity index of the soil leads to improvement in its properties (Mosa, 2017). Decreased plasticity index leads to improvement in workability (Amadi & Okeiyi, 2017;Niyomukiza et al, 2020a;Niyomukiza et al, 2020b).…”

Section: Atterberg Limitsmentioning

confidence: 99%

“…Different researchers ( Syafrudin et al, 2022;Ikeagwuani et al, 2019;Niyomukiza et al, 2020b;Ogundipe & Olumide, 2013) who conducted various studies on soil stability confirmed that a decrease in the plasticity index of the soil leads to improvement in its properties (Mosa, 2017). Decreased plasticity index leads to improvement in workability (Amadi & Okeiyi, 2017;Niyomukiza et al, 2020a;Niyomukiza et al, 2020b). This improvement is vital because little compaction efforts are required to attain higher soil densities, thus saving time and money.…”

Section: Atterberg Limitsmentioning

confidence: 99%

Use of waste glass powder in improving the properties of expansive clay soils

2023

Global NEST: The International Journal

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<p>Expansive soils pose a danger to the foundations of engineering structures due to their poor engineering properties. These soils are usually treated using mechanical techniques, and chemical stabilizers. However, the production of these chemicals is not friendly to the environment, thus a need to adopt waste materials. Therefore, this research investigated the efficacy of utilizing waste crushed glass to alter the engineering properties of the soil. The study's objectives were achieved by conducting experiments on non-stabilized soil, and waste glass powder (WGP) stabilized soil in the percentages of 3, 5, 7, and 9% of dry weight of the soil. The findings showed that adding glass powder to subgrade soil strengthens it and reduces its susceptibility to volume change. The highest compressive strength was obtained after mixing 7% waste glass powder with the soil, and beyond that, the strength reduced. The study found that the inclusion of 7% waste glass powder content is suitable for the stabilization of the soil possessing properties similar to the ones in the study area.</p>

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“…On the other hand, it is possible that the high strength obtained with these techniques is not always required, as is the case of subgrades in road projects [38,39], and there is a justification for looking for cheaper additives that can be used to improve soil properties [15].…”

Section: Of 25mentioning

confidence: 99%

“…So, based on opinion Karteek's [13], sawdust would give excellent results when used as a stabilizing material. Additionally, when sawdust is mixed with other materials that have binding properties such as lime, its use can produce better results [38,99].…”

Section: Soil Stabilization With Sawdustmentioning

confidence: 99%

Use of Sawdust Fibers For Soil Reinforcement: A Review

Medina-Martinez¹,

Sandoval-Herazo²,

Castro³

et al. 2023

Preprint

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A frequent problem in Geotechnics is the soils with inadequate physical-mechanical properties before the efforts to which they will be subjected by the constructions, incurring cost overruns caused by their engineering improvement. The need to improve the engineering properties of soils is not recent, currently observing that the most common alternatives are binders such as cement and lime. The climate change observed in recent decades and the uncontrolled emission of greenhouse gases have motivated Geotechnical and Geoenvironmental researchers to seek mechanisms for soil reinforcement from a more sustainable and environmentally friendly approach by proposing the use of recycled and waste materials. An alternative is natural fibers, which can be obtained as waste from many agro-industrial processes, implying their high availability and low cost. Sawdust as a by-product of wood processing has a rough texture that can generate high friction between the fiber and the matrix of the soils, leading to a significant increase in its shearing strength and bearing capacity. This concept of improving the properties of soils using natural fibers distributed randomly is inspired by the natural phenomenon of grass and/or plants that when growing on a slope can effectively stabilize a said slope.

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The Effect of Curing Time on the Engineering Properties of Sawdust and Lime Stabilized Expansive Soils

Cited by 8 publications

References 9 publications

Waste utilization to enhance performance of road subbase fill

Waste utilization to enhance performance of road subbase fill

Use of waste glass powder in improving the properties of expansive clay soils

Use of Sawdust Fibers For Soil Reinforcement: A Review

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