Characterization of Problematic Expansive Soils from Mineralogical and Swell Characterization Studies

Shamrani, M. A.; Mutaz, E.; Puppala, A. J.; Dafalla, Muawia

doi:10.1061/41095(365)78

Cited by 15 publications

(7 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This investigation concludes that lime is a more effective modifier than ordinary portland cement. Lime is an effective stabilizer of expansive soils that is treacherous due to the high potential of volume change [22]. When treated with lime, the properties of clayey materials are changed abruptly.…”

Section: Background Literaturementioning

confidence: 99%

Effect of Waste Glass Powder on the Swelling and Strength Characteristic of District Karak Expansive Clay

Zamin

Nasir

Khan

et al. 2021

SSURJET

View full text Add to dashboard Cite

Expansive soils are generally considered problematic due to undesirable geotechnical characteristics like expansion, shrinking, settlement, and heaving. Such soils have low shear strength which decreases after wetting or other physical aggravations. Subsequently, such soils need proper improvement before constructing a structure on them. Different industrial wastes have been used for the stabilization of weak soil in the past. In the current investigation, the impact of waste glass powder (WGP) on the strength and swelling characteristic of swelling soils have been assessed. The primary target of this examination was to research the utilization of waste glass powder in geotechnical applications for controlling the settlement and expanding qualities. For this reason, the local expansive soil of district Karak, Pakistan was selected and their engineering properties were assessed. The experimental work consists of conducting the consistency limits, California bearing ratio (CBR), specific gravity standard Procter tests. The mentioned tests were carried out on both natural as well as modified specimens. For modification purposes, waste glass powder (WGP) was added in different proportions with the incremental rate of 4%, for instant 0%, 4%, 8%, 12%, 16%, and 20%. The addition of waste glass powder greatly reduced the swelling properties of the tested soil and also improved the engineering characteristics. A maximum reduction in swelling was observed at 20% addition of waste glass powder. Similarly, the liquid limid also reduced, and the specific gravity and maximum dry density increased at optimum glass powder content.

show abstract

Section: Background Literaturementioning

confidence: 99%

Effect of Waste Glass Powder on the Swelling and Strength Characteristic of District Karak Expansive Clay

Zamin

Nasir

Khan

et al. 2021

SSURJET

View full text Add to dashboard Cite

show abstract

“…Expansive soils are those that expand when hydrated and shrink when they are subjected to drying (4). This heave-and-shrink process has caused major problems to structures, including roads, buildings, steel structures, pipelines, culverts, and other infrastructure.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Chemical Stabilization of a Highly Expansive Clayey Soil

Mutaz

Shamrani

Puppala

et al. 2011

Transportation Research Record: Journal of the Transportation R

Self Cite

View full text Add to dashboard Cite

Lime and cement are widely used in stabilization and improvement of the expansive subsoils that support pavement infrastructure. In this research, an attempt is made to stabilize a highly expansive soil rich with smectite minerals with an aim to understand the mechanisms that result in soil property improvements. Influences of both the type of stabilizer and their dosages were studied for modifying expansive clay from the north-central region of Saudi Arabia. Al-Qatif soil is known for its highly expansive nature, and it is known to induce major damage to low-volume roads built on untreated to unbound sandy bases. This research was performed by first characterizing and classifying Al-Qatif clayey soil by means of routine index properties, X-ray diffraction studies, and swell and shrinkage tests. Next, lime and cement were used to stabilize control clayey soils, and the treated soils were then subjected to the same soil tests. Effects of lime and cement treatments on Atterberg limits, swell, and linear shrinkage strain properties are addressed. Major conclusions and findings from experimental investigations are presented.

show abstract

“…It is about 400 km to the east of Riyadh, Saudi Arabia. The properties and swelling characteristics of Al-Qatif were extensively investigated [25][26][27][28][29][30][31]. All studies confirmed that the Al-Qatif clay is highly expansive due to its mineralogy and the amount of smectite mineral content.…”

Section: Al-qatif Claymentioning

confidence: 87%

The Combined Effect of Calcium Chloride and Cement on Expansive Soil Materials

2023

View full text Add to dashboard Cite

In this study, the chemical stabilization of moderately to highly plastic expansive soil using calcium chloride with added cement is introduced as an effective alternative to the conventional approaches using a single additive such as lime, cement, or a by-product of industrial processes. Using only calcium chloride may lead to its leaching or dissolution over time, leaving a collapsing skeleton with weak bonds. The chemical effect produced by additives is dependent on the constituents of the stabilized soil and the curing period considered. Herein, calcium chloride concentrations of 2%, 4%, and 8% with the addition of 2% cement by dry weight of the soil were considered. The main objective of this study is to investigate the addition of a low amount of cement as a binder to improve the strength and durability of a chemically treated expansive soil. The engineering properties were investigated at 3 curing times: 3 days, 7 days, and 28 days. A laboratory investigation was carried out to investigate the effect of the addition of calcium chloride with cement on the swell potential, swell pressure, compression index, suction, and unconfined compressive strength. Scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM/EDX) testing was conducted. The X-ray diffraction patterns were recorded to observe the mineralogy of the material. The results confirmed that calcium chloride with cement is very effective for stabilizing the expansive soil. A reduction in the swell potential by 8% and 25% and a reduction in swelling pressure by 28% and 37.4% were observed for 4% and 8% calcium chloride with cement addition. The compression index decreased with the increase in the calcium chloride content.

show abstract

Characterization of Problematic Expansive Soils from Mineralogical and Swell Characterization Studies

Cited by 15 publications

References 2 publications

Effect of Waste Glass Powder on the Swelling and Strength Characteristic of District Karak Expansive Clay

Effect of Waste Glass Powder on the Swelling and Strength Characteristic of District Karak Expansive Clay

Evaluation of Chemical Stabilization of a Highly Expansive Clayey Soil

The Combined Effect of Calcium Chloride and Cement on Expansive Soil Materials

Contact Info

Product

Resources

About