Multiscale Study of Sodium Sulfate Soaking Durability of Low Plastic Clay Stabilized by Reactive Magnesia-Activated Ground Granulated Blast-Furnace Slag

Yu, Bo; Du, Yan-Jun; Jin, Fei; Liu, Chenyang

doi:10.1061/(asce)mt.1943-5533.0001517

Cited by 36 publications

(7 citation statements)

References 41 publications

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“…Many researchers have suggested its use as potential stabilizer for clayey soils. e (volcanic ash + 20% CKD) stabilizer mix will yield a significant improvement in mechanical properties [136] and pronounced increase in CBR values (above 80%); therefore, Yu et al [91] found it suitable for the construction of economical building units and small-scale roadways.…”

Section: Stabilizermentioning

confidence: 99%

On the Recent Trends in Expansive Soil Stabilization Using Calcium‐Based Stabilizer Materials (CSMs): A Comprehensive Review

Jalal

Jamhiri

et al. 2020

Advances in Materials Science and Engineering

100

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Calcium-based stabilizer materials (CSMs) exhibit pozzolanic properties which improve the properties of clayey soils by hydration, cation exchange, flocculation, pozzolanic reaction, and carbonation. In this comprehensive review, comprising over past three decades from 1990 to 2019, a mechanistic literature of expansive soil stabilization by incorporating CSMs is presented by reviewing 183 published research articles. The advantages and disadvantages of CSMs as the ground stabilizing agent are succinctly presented, and the major outcomes of physicochemical effects on soil properties are discussed in detail. After blending with CSM, the main and interaction effects on soil properties with focus on chemical processes such as X-ray fluorescence, X-ray diffraction analyses, and microstructure interaction by using scanning electron microscopy and thermogravimetric analysis have been reviewed in light of findings of past researchers. This work will help geotechnical engineers to opt for suitable CSM in the field of geoenvironmental engineering in committing to sustainable construction of civil engineering structures over expansive soils.

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Section: Stabilizermentioning

confidence: 99%

On the Recent Trends in Expansive Soil Stabilization Using Calcium‐Based Stabilizer Materials (CSMs): A Comprehensive Review

Jalal

Jamhiri

et al. 2020

Advances in Materials Science and Engineering

100

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“…The dV n /dlog(D) is used for the pore size distributions of the tested samples as the diameter of the pore is plotted at the logarithm scale, although it emphasizes the macropores region. 32,33 Samples 1 and 2 have micropores (less than 1 μm), as shown in Fig. 2(a).…”

Section: Resultsmentioning

confidence: 96%

Measurements of the relative permeability to CO₂‐and‐brine multiphase fluid of Paaratte formation at near‐reservoir conditions

et al. 2021

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CO 2 sequestration in deep saline aquifers is a promising method to reduce atmospheric CO 2 . The on-going CO 2 CRC Otway project aims to demonstrate the effectiveness of large-scale CO 2 storage in deep saline formations and to develop new monitoring technologies in Australia. The relative permeability curves are essential for predicting the movements of CO 2 and estimate residual trapping in the aquifer during and after injection through numerical simulations. However, studies of relative permeability curves for the Paaratte sandstone at the in situ conditions are limited. In addition, different rock types in the Paaratte formation can behave differently when CO 2 displaces brine. This work reports four relative permeability experiments of CO 2 /brine systems using the unsteady-state core flooding method for different types of rock collected from various depths of Paaratte formations at near-reservoir conditions. The relative permeability results calculated from the analytical Johnson, Bossler, and Naumann (JBN) method and the numerical history matching method are compared. The JBN method does not calculate the relative permeability accurately for CO 2 /brine systems due to the assumptions of incompressible flow, since the CO 2 relative permeability results calculated from the JBN method are similar for all the cases. The history matching results show that the brine (water) relative permeability of the core samples with a high fraction of macropores is similar to the measurements for Paaratte formation reported in the literature over a large range of brine (water) saturation. In contrast, the brine relative permeability of the core samples with a high fraction of micropores is considerably higher than that of the core samples with macropores, suggesting better connectivity for the samples with a high fraction of micropores. The new findings will be useful in reservoir-scale numerical modelings of the Paaratte formation to more accurately predict the movement of CO 2 during and after the injection.

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“…Reactive magnesia (M) is a more effective substance in GGBS activation compared to lime, as it facilitates a higher rate of strength development [ 6 , 8 , 37 , 38 , 39 , 40 ]. Reactive M is commonly obtained from the calcination of magnesite at temperature range of 700–800 °C and high capacity in absorbing carbon dioxide (CO 2 ) [ 2 , 41 ].…”

Section: Introductionmentioning

confidence: 99%

Novel Approach to the Treatment of Gypseous Soil-Induced Ettringite Using Blends of Non-Calcium-Based Stabilizer, Ground Granulated Blast-Furnace Slag, and Metakaolin

2021

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Gypseous soil is one type of expansive soil that contains a sufficient amount of sulphate. Cement and lime are the most common methods of stabilizing expansive soil, but the problem is that lime-treated gypseous soil normally fails in terms of durability due to the formation of ettringite, a highly deleterious compound. Moisture ingress causes a significant swelling of ettringite crystals, thereby causing considerable damage to structures and pavements. This study investigated the suitability of various materials (nano–Mg oxide (M), metakaolin (MK), and ground granulated blast-furnace slag (GGBS)) for the stabilization of gypseous soil. The results showed soil samples treated with 20% M-MK, M-GGBS, and M-GGBS-MK to exhibit lower swelling rates (<0.01% change in volume) compared to those treated with 10% and 20% of lime after 90 days of curing. However, soil samples stabilized with 10% and 20% binder of [(M-MK), (M-GGBS), and (M-GGBS-MK)] exhibited higher strengths after 90 days of soaking (ranging from 0.96–12.8 MPa) compared to those stabilized with 10% and 20% lime. From the morphology studies, the SEM and EDX analysis evidenced no formation of ettringite in the samples stabilized with M-MK-, M-GGBS-, and M-GGBS-MK. These results demonstrate the suitability of M-MK, M-GGBS, and M-GGBS-MK as effective agents for the stabilization of gypseous soil.

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Multiscale Study of Sodium Sulfate Soaking Durability of Low Plastic Clay Stabilized by Reactive Magnesia-Activated Ground Granulated Blast-Furnace Slag

Cited by 36 publications

References 41 publications

On the Recent Trends in Expansive Soil Stabilization Using Calcium‐Based Stabilizer Materials (CSMs): A Comprehensive Review

On the Recent Trends in Expansive Soil Stabilization Using Calcium‐Based Stabilizer Materials (CSMs): A Comprehensive Review

Measurements of the relative permeability to CO₂‐and‐brine multiphase fluid of Paaratte formation at near‐reservoir conditions

Novel Approach to the Treatment of Gypseous Soil-Induced Ettringite Using Blends of Non-Calcium-Based Stabilizer, Ground Granulated Blast-Furnace Slag, and Metakaolin

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Multiscale Study of Sodium Sulfate Soaking Durability of Low Plastic Clay Stabilized by Reactive Magnesia-Activated Ground Granulated Blast-Furnace Slag

Cited by 36 publications

References 41 publications

On the Recent Trends in Expansive Soil Stabilization Using Calcium‐Based Stabilizer Materials (CSMs): A Comprehensive Review

On the Recent Trends in Expansive Soil Stabilization Using Calcium‐Based Stabilizer Materials (CSMs): A Comprehensive Review

Measurements of the relative permeability to CO2‐and‐brine multiphase fluid of Paaratte formation at near‐reservoir conditions

Novel Approach to the Treatment of Gypseous Soil-Induced Ettringite Using Blends of Non-Calcium-Based Stabilizer, Ground Granulated Blast-Furnace Slag, and Metakaolin

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Measurements of the relative permeability to CO₂‐and‐brine multiphase fluid of Paaratte formation at near‐reservoir conditions