Use of Cement Kiln Dust for Improving the Geotechnical Properties of Collapsible Soils

Ogila, Waleed Abdelmoghny Metwaly; Eldamarawy, M. E.

doi:10.1007/s40098-021-00550-7

Cited by 9 publications

(2 citation statements)

References 47 publications

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“…Over the past several decades, extensive studies have been conducted to better understand the effects of various stabilizing chemicals and procedures on the thermal, mechanical, and geotechnical properties of soils. Cement kiln dust (CKD), a byproduct of the cement manufacturing process, has been extensively researched for its potential in soil stabilization, demonstrating improvements in geotechnical qualities and construction suitability [41]. When combined with glass or polypropylene fibers, CKD impacts the physicochemical properties, geomechanical strength, and ductility of fine-grained soil.…”

Section: Soil Stabilization: Thermal and Mechanical Insightsmentioning

confidence: 99%

Experimental Study of Thermal Conductivity in Soil Stabilization for Sustainable Construction Applications

Muhudin,

Zami,

Budaiwi

et al. 2024

Sustainability

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Soils in Saudi Arabia are emerging as potential sustainable building materials, a notion central to this study. The research is crucial for advancing construction practices in arid areas by enhancing soil thermal properties through stabilization. Focusing on Hejaz region soils, the study evaluates the impact of stabilizers such as cement, lime, and cement kiln dust (CKD) on their thermal behavior. This investigation, using two specific soil types designated as Soil A and Soil B, varied the concentration of additives from 0% to 15% over a 12-week duration. Employing a TLS-100 for thermal measurements, it was found that Soil A, with a 12.5% cement concentration, showed a significant 164.54% increase in thermal conductivity. When treated with 2.5% lime, Soil A reached a thermal conductivity of 0.555 W/(m·K), whereas Soil B exhibited a 53.00% decrease under similar lime concentration, reflecting diverse soil responses. Notably, a 15% CKD application in Soil A led to an astounding 213.55% rise in thermal conductivity, with Soil B recording an 82.7% increase. The findings emphasize the substantial influence of soil stabilization in improving the thermal characteristics of Hejaz soils, especially with cement and CKD, and, to a varying extent. This study is pivotal in identifying precise, soil-specific stabilization methods in Saudi Arabia’s Hejaz region, essential for developing sustainable engineering applications and optimizing construction materials for better thermal efficiency.

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Section: Soil Stabilization: Thermal and Mechanical Insightsmentioning

confidence: 99%

Experimental Study of Thermal Conductivity in Soil Stabilization for Sustainable Construction Applications

Muhudin,

Zami,

Budaiwi

et al. 2024

Sustainability

View full text Add to dashboard Cite

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“…CKD contains a high amount of lime, as indicated in Table 2, which increased with the increase in the CKD content in the binder. The lime can dissolve in water, and this is very important since it determines the required quantity of water to disassociate Ca +2 for cation exchange (Ogila and Eldamarawy 2022;Iorliam 2012). Though GGBS has a high CaO, its water affinity is low because its CaO is hydraulically latent.…”

Section: Atterberg Limitsmentioning

confidence: 99%

Improving Soft Subgrade Stability Using a Novel Sustainable Activated Binder Derived from By-Products

Jwaida,

Dulaimi,

Jafer

et al. 2024

Geotech Geol Eng

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Soft soil concerns, due to high compressibility and low bearing capacity, prompted an investigation into stabilizing clay soil. Traditionally, binder including cement or lime has been used as stabilizers though a current requirement of alternatives is stem from environmental concerns. The study focused on the viability of using a novel binary activated blended binder composed of environmentally friendly materials, namely ground granulated blast furnace slag (GGBS) activated by cement kiln dust (CKD). The experimental work included investigating the impact of the developed binders on the Atterberg limits, standard Proctor compaction, California Bearing Ratio (CBR), unconfined compressive strength (UCS), and field-emission scanning electron microscopy (SEM)/energy-dispersive X-ray spectroscopy. CBR tests were conducted after 7 days of curing or soaking, while UCS and SEM analyses were conducted after 7 and 28 days of curing. A fixed binder ratio of 9% was maintained, with GGBS blended at 25%, 50%, and 75% with CKD. For comparison, samples of untreated and treated soils with unary binders from GGBS and CKD were also prepared. Results indicated that activated binders notably decreased soil plasticity and maximum dry density, while elevating optimum moisture content, CBR, and UCS, especially in later stages of treated soil and unary GGBS binder. Unary CKD binder exhibited a similar trend to activated binders. The activating of 25% GGBS with 75% CKD provided the optimum binder which increased the mechanical strengths by about 6 times than untreated soil. SEM revealed substantial formations of C-S-H and C-A-H gel, along with ettringite, intensifying with time. This research provides viable outcomes for stabilizing clay soil using environmentally friendly binders, demonstrating significant improvements in soil properties, particularly when using the binary activated blended binder consisting of GGBS and CKD. Graphical Abstract

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Assessment of the Impact of Inundation on the Strength of a Lateritic and Collapsible Soil

Falcão¹,

Baroni²,

Masutti³

et al. 2023

Geotech Geol Eng

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Use of Cement Kiln Dust for Improving the Geotechnical Properties of Collapsible Soils

Cited by 9 publications

References 47 publications

Experimental Study of Thermal Conductivity in Soil Stabilization for Sustainable Construction Applications

Experimental Study of Thermal Conductivity in Soil Stabilization for Sustainable Construction Applications

Improving Soft Subgrade Stability Using a Novel Sustainable Activated Binder Derived from By-Products

Assessment of the Impact of Inundation on the Strength of a Lateritic and Collapsible Soil

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