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Soil stabilization

About: Soil stabilization is a research topic. Over the lifetime, 3161 publications have been published within this topic receiving 48437 citations.


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Journal ArticleDOI
TL;DR: In this article, the deformation behavior of soil liners with and without discrete and randomly distributed fibers for waste containment systems at the onset of non-uniform settlements in a geotechnical centrifuge is studied.
Abstract: The objective of this paper is to study the deformation behavior of moist-compacted soil liners with and without inclusion of discrete and randomly distributed fibers for waste containment systems at the onset of nonuniform settlements in a geotechnical centrifuge. First, scaling considerations pertaining to simulation of discretely mixed fibers in a centrifuge are presented. A series of centrifuge tests were carried out by varying aspect ratio and dosage of fibers in a soil liner of 1.2 m thick and compacted at its standard Proctor compaction. Controlled in-flight simulation of nonuniform settlements in a centrifuge was carried out using a trap-door arrangement at 40 g . It was observed that the aspect ratio and fiber content has a significant affect in restraining cracks for a randomly reinforced soil liner at the onset of nonuniform settlements. In addition to centrifuge test results, flexural behavior of soil beams with and without discrete and randomly distributed fibers was evaluated in the laborato...

19 citations

Journal ArticleDOI
TL;DR: In this paper, an attempt has been made to improve strength, durability and immobilize contaminants of the contaminated dredged soil collected from Najafgarh drain by mixing it with different proportion of cement-bottom ash mix so that it can suitably fulfill the requirements of highway subgrade materials.
Abstract: Large amount of sediments are dredged from connecting drains of River Yamuna as a part of its regular maintenance in Delhi. These dredged soils generally considered as waste due to its poor engineering properties. In this study attempt has been made to improve strength, durability and immobilize contaminants of the contaminated dredged soil collected from Najafgarh drain by mixing it with different proportion of cement–bottom ash mix so that it can suitably fulfill the requirements of highway subgrade materials. Compaction test, California bearing ratio test, wetting and drying test, toxicity characteristic leaching procedure leachate test and scanning electron microscope test were performed on the contaminated dredged soil specimens and the results indicated that cement–bottom ash mix was effective in improving the engineering properties of the contaminated dredged soils. Also, the test results of the contaminated dredged soil stabilized with cement–bottom ash mix were better in comparison to cement alone. From the study it reveals that the optimum proportion of additive to be used to improve properties of the contaminated dredged soils was 10% cement + 10% bottom ash mix for use it as a highway subgrade fill materials.

19 citations

Journal ArticleDOI
TL;DR: In this paper, a Polyvinil Acetate-based polymer was used to treat different soils and then polymer-added soil samples were investigated experimentally in a wind tunnel to verify the effecte of the polymer on wind erosion control of the soils and the results were compared with water treated soil samples.
Abstract: Wind erosion of soils is one of the most important problems in environment and agriculture which could affects several fields. Agricultural lands, water reservoires, irrigation canals, drains and etc. may be affected by wind erosion and suspended particles. As a result wind erosion control needs attention in arid and semi-arid regions. In recent years, some polymeric materials have been used for improvement of structural stability, increasing aggregate stability and soil stabilization, though kind of polymer, quantity of polymer, field efficiency and durability and environmental impacts are some important parameters which should be taken into consideration. In this study, a Polyvinil Acetate-based polymer was used to treat different soils. Then polymer-added soil samples were investigated experimentally in a wind tunnel to verify the effecte of polymer on wind erosion control of the soils and the results were compared with water treated soil samples. The results of wind tunnel experiments with a maximum 26 m/s wind velocity showed that there was a significat difference between the erosion of polymer treated and water treated soil samples. Application of 25g/m 2 polymer to Aeolian sands reduced the erosion of Aeolian sands samples to zero related to water treated samples. For silty and calyey soils treated by polymer, the wind erosion reduced minimum 90% in relation to water treated samples.

19 citations

Journal ArticleDOI
TL;DR: In this article, the Green Bayburt Stone wastes, created in the stone quarries during the stone processing, can be used as a stabilizing material against freezing-thawing effect.
Abstract: Freezing–thawing processes hapenning in seasonally cold climate cause deformation of soil in time of freezing and strength loss while thawing. Problems of ground frost heave and soil softening belong to the important factors, that could cause serious damage and financial loss. Bayburt tuff and tuffites known as Bayburt Stone mines, located around Bayburt, play important role on economy of the Bayburt city. As a result of researches in 2005 total of 2 535 700 tons proved reserve were determined several places in Bayburt. The goal of this study is proving, that deposits of Green Bayburt Stone wastes, created in the stone quarries during the stone processing, can be used as a stabilizing material. By recycling the waste material rejected stone was mixed with lime and used as a soil stabilizator against freezing–thawing effect. Prepared natural and stabilized soil samples were subjected to freezing–thawing cycles after curing for 28 days. After the freezing–thawing cycles, compressive strength of the samples was measured to investigate the influence of the additives on the freezing–thawing properties of soil samples. As a result of this study, it was determined that samples stabilized with Green Bayburt Stone mixtures have high freezing–thawing durability as compared to unstabilized samples. As a consequence, it was seen that those mixtures can be successfully used as an additive material to enhance the freezing–thawing effects of cohessive soils.

19 citations

Journal ArticleDOI
TL;DR: In this paper, the impact of both amounts of cement and zeolite on unconfined compressive strength (UCS) has been quantified by measuring the un-confined compression strength of concrete-cement-sand mixtures.
Abstract: The practice of soil treatment using cement and zeolite is an approach that can be widely used in soil stabilization particularly in road construction, as a support layer for shallow foundations, to strengthen slopes, and to prevent sand liquefaction. The present research intends to quantify the impact of both amounts of cement and zeolite, porosity index, porosity/cement and porosity/SiO2 and Al2O3 particles ratio on zeolite cemented sand mixtures by the assessment of unconfined compressive strength (UCS). A program of unconfined compression tests considering three distinct porosity ratio, four cement contents (2, 4, 6 and 8%) and six different percent of cement replacement by zeolite (0, 10, 30, 50, 70 and 90%) is performed in this study. Results indicate that cement replaced by zeolite at optimum proportion of 30%, the value of improved UCS of the cement sand specimens due to zeolite and cement chemical properties are exploited. Increasing cement content and porosity of the compacted mixture, the efficiency of using zeolite rises. In this paper, it has been shown that for the zeolite–cement–sand mixtures, UCS increases via cement content (C) raise and porosity (η) reduction and a power function is well-adapted to fit both UCS-C and UCS-η. Finally, key parameter SiO2 and Al2O3 particles as active particles (AP) introduced and six UCS-AP diagrams are drawn, any of which is traced to a specific amount of zeolite. Afterwards, UCS is plotted against 1/AP and η/AP which is regarded as a controlling parameter of UCS. As a consequence, for each of the zeolite–cement–sand mixtures studied, a target UCS value could be obtained using a specific correlation (1.5E8 η-1.713AP1.424, R2 = 0.982) by porosity reductions, cement content rises and zeolite variations. This experimental research and key parameter AP will introduce an acceptable description of the mechanical parameters which are extensively used in the subgrade and foundation designs.

19 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202364
2022128
2021213
2020167
2019173
2018168