Swell and compressibility characteristics of sand–bentonite mixtures inundated with liquids

Alawaji, H.

doi:10.1016/s0169-1317(99)00033-2

Cited by 97 publications

(38 citation statements)

References 19 publications

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“…2). This agrees with the results reported in Alawaji (1999). Unlike the method used by Alawaji (1999), the tests conducted in this study used two different methods to impose the saline solution with different TDS concentrations to the specimens.…”

Section: Test Results and Prediction Of Swelling Pressuresupporting

confidence: 89%

“…This agrees with the results reported in Alawaji (1999). Unlike the method used by Alawaji (1999), the tests conducted in this study used two different methods to impose the saline solution with different TDS concentrations to the specimens. In the first method, the compacted bentonite specimens with the same dry density were prepared and the solution with different TDS concentrations was added to the specimens (Fig.…”

Section: Test Results and Prediction Of Swelling Pressuresupporting

confidence: 89%

“…Therefore, it is necessary to study the swelling behavior of bentonite in chemical solutions. As a consequence, extensive studies have been performed over the years on different bentonites or bentonite-aggregate mixtures in both distilled water and saline solutions (Di Maio, 1996;Alawaji, 1999;Zhu et al, 2013). On the other hand, some works have focused on the insights into the mechanisms governing the bentonite swelling (Komine and Ogata, 1994).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation and prediction of the swelling pressures of GMZ bentonites saturated with saline solution

Zhang

et al. 2015

Applied Clay Science

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Section: Test Results and Prediction Of Swelling Pressuresupporting

confidence: 89%

Section: Test Results and Prediction Of Swelling Pressuresupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

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Evaluation and prediction of the swelling pressures of GMZ bentonites saturated with saline solution

Zhang

et al. 2015

Applied Clay Science

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“…Dafalla [3] presented a model for predicting the behaviour of artificial sand-clay mixtures using the fall cone testing method. Alawaji [16] studied the swell and compressibility characteristics of sand-bentonite mixtures wetted with liquids with two types of commercial bentonite and investigated the compressibility behaviour when the mixture is subjected to liquids with variable concentrations of Ca(NO 3 ) 2 and NaNO 3 . Alawaji [16] used these chemicals to investigate their influence on the process of swelling and compressibility.…”

Section: Literature Review On the Compressibility Of Sand-claymentioning

confidence: 99%

“…Alawaji [16] studied the swell and compressibility characteristics of sand-bentonite mixtures wetted with liquids with two types of commercial bentonite and investigated the compressibility behaviour when the mixture is subjected to liquids with variable concentrations of Ca(NO 3 ) 2 and NaNO 3 . Alawaji [16] used these chemicals to investigate their influence on the process of swelling and compressibility. His results indicated that swell potential (SP), swell time, swell pressure, and volume compressibility decrease with the increase in chemical concentrations.…”

Section: Literature Review On the Compressibility Of Sand-claymentioning

confidence: 99%

The Compressibility and Swell of Mixtures for Sand-Clay Liners

Dafalla

2017

Advances in Materials Science and Engineering

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Sand-clay liners utilize expansive clay to act as a filler to occupy the voids in the sand and thus reduce the hydraulic conductivity of the mixture. The hydraulic conductivity and transfer of water and other substances through sand-clay mixtures are of prime concern in the design of liners and hydraulic barriers. Many successful research studies have been undertaken to achieve appropriate mixtures that satisfy hydraulic conductivity requirements. This study investigates compressibility and swelling properties of mixtures to ensure that they were acceptable for light structures, roads, and slabs on grade. A range of sand-expansive clay mixtures were investigated for swell and compression properties. The swelling and compressibility indices were found to increase with increasing clay content. The use of highly expansive material can result in large volume changes due to swell and shrinkage. The inclusion of less expansive soil material as partial replacement of bentonite by one-third to two-thirds is found to reduce the compressibility by 60% to 70% for 10% and 15% clay content, respectively. The swelling pressure and swell percent were also found significantly reduced. Adding less expansive natural clay to bentonite can produce liners that are still sufficiently impervious and at the same time less problematic.

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Hydraulic Conductivity of Fly Ash–Bentonite Mixture Exposed to Salt Solutions: ANN Model and Sensitivity Analysis

Jayadas

Kumar

Sasmal

et al. 2023

Lecture Notes in Civil Engineering

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Swell and compressibility characteristics of sand–bentonite mixtures inundated with liquids

Cited by 97 publications

References 19 publications

Evaluation and prediction of the swelling pressures of GMZ bentonites saturated with saline solution

Evaluation and prediction of the swelling pressures of GMZ bentonites saturated with saline solution

The Compressibility and Swell of Mixtures for Sand-Clay Liners

Hydraulic Conductivity of Fly Ash–Bentonite Mixture Exposed to Salt Solutions: ANN Model and Sensitivity Analysis

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