Soil stabilization

Koukouzas, Nikolaos; Tyrologou, Pavlos; Koutsovitis, Petros; Karapanos, Dimitris; Karkalis, Christos

doi:10.1016/b978-0-12-817686-3.00004-9

Cited by 4 publications

(5 citation statements)

References 94 publications

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“…For example, Agus et al [52] performed measurements on filter paper discs (Whatman No. 42) and developed Equations ( 1) and (2) to describe the relationship between the suction (metric suction, u m , and total suction, u t ) and the water content of the filter paper (w fp ) based on best-fit regressions. To determine the solute suction (u s ) using the EC method, Equation (3) can be used.…”

Section: Laboratory Investigationsmentioning

confidence: 99%

“…Expansive soils, also referred to as reactive soils, can be found all over the world, in arid or semi-arid zones with tropical or temperate climates [1]. Koukouzas et al [2] defined expansive soil as soil that undergoes a significant volume change due to changes in water content, resulting in ground movement. They contain minerals of Kaolinite, Montmorillonite and Illite groups.…”

Section: Introductionmentioning

confidence: 99%

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Accounting for Expansive Soil Movement in Geotechnical Design—A State-of-the-Art Review

et al. 2022

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Lightweight structures built on expansive soils are susceptible to damage caused by soil movement. Financial losses resulting from the improper design of structures on expansive soils can be significant. The interactions and failure mechanisms of different geotechnical structures constructed on such soils differ depending on the structure type, site characteristics, and climatic conditions, as the behaviour of expansive soils is influenced by moisture variations. Therefore, the performance of different geotechnical structures (e.g., lightweight footings for residential buildings) is expected to be adversely affected by climate change (especially rainfall and temperature change), as geotechnical structures are often designed to have a service life of 50–100 years. Some structures may even fail if the effect of climate change is not considered in the present design. This review aims to provide insights into problems associated with expansive soils that trigger the failure of lightweight structures, including current investigations and industry practices. This review recognises that although the soil moisture conditions govern expansive soil behaviour, limited studies have incorporated the effect of future climate changes. In addition, this review identifies the need to improve the current Australian design practice for residential footings through the inclusion of more site-specific investigations and expected climate changes.

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Section: Laboratory Investigationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Accounting for Expansive Soil Movement in Geotechnical Design—A State-of-the-Art Review

et al. 2022

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“…Different soil stabilization techniques including chemical and mechanical stabilization have been investigated over the last five decades [1][2][3][4]. Chemical improvement techniques include different binders such as lime, cement, fly ash, and sugarcane bagasse ash.…”

Section: Introductionmentioning

confidence: 99%

“…Chemical improvement techniques include different binders such as lime, cement, fly ash, and sugarcane bagasse ash. Koukouzas et al [1] conducted an extensive and thorough literature review about different soil stabilization, considering different binders and mixing techniques. For chemical stabilization, Koukouzas et al [2,3] classified fly ash as a high Ca content (CaO: 10-35%) which provides high potential for self-cementing properties and stabilization of soils [4].…”

Section: Introductionmentioning

confidence: 99%

Stabilization of Pavement Subgrade Clay Soil Using Sugarcane Ash and Lime

Ahmed,

El-Emam,

Ahmad

et al. 2024

Geosciences

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Soft to medium clay soil possesses major sources of damages to the pavement layers overlying them because of their potential failure under moisture changes and external heavy traffic load. In such situations, soil stabilization methods can be used to improve the soil properties and satisfy the desired engineering requirements. This study presents the use of sugarcane bagasse ash (SBA) and lime as chemical stabilizers for a clay soil subbase. Sugarcane bagasse ash and lime are used individually and as mixtures at varying percentages to stabilize a clay soil from Taxila, Pakistan. Various geotechnical laboratory tests such as Atterberg limits, compaction test, and California Bearing Ratio (CBR) are carried out on both pure and stabilized soils. These tests are performed at 2.5%, 5%, and 7.5% of either SBA or lime by weight of dry soil. In addition, mixtures of lime and SBA in ratios of 1:1, 2:1, 3:1, 1:2, and 1:3 are used in 5%, 7.5%, and 10% of dry soil weight, respectively. Results indicate that soil improved with 7.5% SBA showed a 28% increase in the liquid limit, while soil mixed with 2.5% lime in combination with 7.5% SBA showed an increase of 40% in the plastic limit. For the plasticity index, the soil mixed with 7.5% SBA showed an increase of 42%. Moreover, 2.5% lime in combination with 2.5% SBA showed the best improvement in soil consistency as this mixture reduced the soil plasticity from high to low according to the plasticity chart. Furthermore, 2.5% SBA in combination with 5% lime demonstrated the largest improvement on the CBR value, which is about a 69% increase above that of the pure soil. Finally, the cost analysis indicates a promising improvement method that reduces pavement cost, increases design life, and mitigates issues of energy consumption and pollution related to SBA as a solid waste material.

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“…Various methods are employed to achieve more stable soil. They include mechanical and chemical approaches, as reported in previous studies (Koukouzas et al, 2022;Lindh et al, 2000;Källén et al, 2014Källén et al, , 2016Lindh and Lemenkova, 2021a). The chemical stabilization of clayey soils is usually a complex hydration process involving reactions between the additive and clay-water systems within the soil structure (Patel, 2019).…”

Section: Introductionmentioning

confidence: 99%

Hardening Accelerators (X-Seed 100 BASF, PCC, LKD and SALT) as Strength-Enhancing Admixture Solutions for Soil Stabilization

Lindh

Lemenkova

2023

Slovak Journal of Civil Engineering

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This study is aimed at evaluating the strength of stabilised soil collected from the Port of Norvik, Stockholm, Sweden, where 350,000 m3 of clay had to be stabilized. The tests were performed in the laboratory of the Swedish Geotechnical Institute (SGI). The soil was stabilised by binder mixtures using Portland cement clinker (PCC) and lime and lime kiln dust (LKD). Accelerators (X-seed 100 BASF, PCC, LKD and salt) were added to the soil samples for quicker stabilization. The strength of the stabilised soil was assessed using resonance frequency measurements of seismic P-waves by an ICP accelerometer in order to estimate the shear strength of the soil and to evaluate the effects from the accelerators, binder ratios, and the curing temperature on the gains in stabilization and strength. Various proportions of the binders were tested, i.e.: 50/50 cement/lime and 50/50 PCC/lime. The temperature was measured using a calorimeter in double experiments. The results showed that the accelerators improve the strength in the stabilized specimens and enhance the soil performance for engineering construction work.

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Soil stabilization

Cited by 4 publications

References 94 publications

Accounting for Expansive Soil Movement in Geotechnical Design—A State-of-the-Art Review

Accounting for Expansive Soil Movement in Geotechnical Design—A State-of-the-Art Review

Stabilization of Pavement Subgrade Clay Soil Using Sugarcane Ash and Lime

Hardening Accelerators (X-Seed 100 BASF, PCC, LKD and SALT) as Strength-Enhancing Admixture Solutions for Soil Stabilization

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