The effect of zeolite and cement stabilization on the mechanical behavior of expansive soils

Chenarboni, Hamed Ahmadi; Lajevardi, Seyed Hamid; MolaAbasi, Hossein; Zeighami, Ehsanollah

doi:10.1016/j.conbuildmat.2020.121630

Cited by 80 publications

(28 citation statements)

References 31 publications

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“…The analyses of shrinkage characteristics of the studied light-textured clay-NaP1 zeolite mixtures showed agreement with literature reports suggesting that addition of fine particle zeolites to the natural clay specimens increases their expansiveness [55,56]. The contrary effect, the significant stabilization of clay soils by zeolite amendment, reported by [57][58][59][60][61] was not observed. The slight decrease of shrinkage potential value represented by COLE and shrinkage potential (Figures 8 and 9, respectively) was observed for clayzeolite mixtures based on specimens sampled in Jelen (clay loam), Lazek (silty clay), and Pawlow (clay loam).…”

Section: Swelling and Shrinkage Characteristicssupporting

confidence: 89%

“…Thus, different zeolite admixture in variable dozes to various types of soil may result in diversified influence on the resultant hydraulic properties of soils, including their hydraulic conductivity. Moreover, it should also be clearly underlined that, according to several sources [55,56], mixtures of expansive clayey soils with different dozes of various zeolites may present higher expansiveness than the original specimens, which is in contrast to reports describing reduction in swelling characteristics due to dispersive clays stabilization by fine particle materials e.g., cement, fly ash, or stone dust [57,58] or some natural zeolites [51,[59][60][61].…”

Section: Introductionmentioning

confidence: 90%

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Hydraulic and Swell–Shrink Characteristics of Clay and Recycled Zeolite Mixtures for Liner Construction in Sustainable Waste Landfill

2021

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This paper presents research considering hydraulic as well as swelling and shrinkage characteristics of potential recycled fine particle materials for compacted clay liner for sustainable landfills. Five locally available clay soils mixed with 10% (by mass) of NaP1 recycled zeolite were tested. The performed analysis was based on determined plasticity, cation exchange capacity, coefficient of saturated hydraulic conductivity after compaction, several shrinkage and swelling characteristics as well as, finally, saturated hydraulic conductivity after three cycles of drying and rewetting of tested specimens and the reference samples. The obtained results showed that addition of zeolite to clay soils allowed reduction in their saturated hydraulic conductivity to meet the required threshold (≤1 × 10−9 m/s) of sealing capabilities for compacted clay liner. On the other hand, an increase in plasticity, swelling, and in several cases in shrinkage, of the clay–zeolite mixture was observed. Finally, none of the tested mixtures was able to sustain its sealing capabilities after three cycles of drying and rewetting. Thus, the studied clayey soils mixed with sustainable recycled zeolite were assessed as promising materials for compacted liner construction. However, the liner should be operated carefully to avoid extensive dissication and cracking.

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Section: Swelling and Shrinkage Characteristicssupporting

confidence: 89%

Section: Introductionmentioning

confidence: 90%

Hydraulic and Swell–Shrink Characteristics of Clay and Recycled Zeolite Mixtures for Liner Construction in Sustainable Waste Landfill

2021

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“…This time-dependent reaction involves interactions among sand, cement, and zeolite to create various kinds of cementitious products. Several researchers such as Mola-Abasi et al [13] and Chenarboni et al [22] have also expressed that with lengthening the curing time in soil stabilization with zeolite, the pozzolanic reactions occur. Thus, the soil gets stiff and the strength increases significantly.…”

Section: Results Of Cbr Testsmentioning

confidence: 99%

Effect of Zeolite on the Compaction Properties and California Bearing Ratio (CBR) of Cemented Sand

Norouznejad

Shooshpasha

Mirhosseini

et al. 2021

Int. j. eng. technol. innov.

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This research investigates the impact of zeolite on the compaction properties and California Bearing Ratio (CBR) of cemented sand. For this purpose, firstly, sand, cement (2, 4, 6, and 8% by the sand dry weight), and zeolite (0%, 30%, 60%, and 90% of cement content, as a replacement material) are mixed. Then, various cylindrical samples with sizes of 101×116 mm and 119×152 mm are prepared for compaction and CBR tests, respectively. After curing for 28 days, the samples are tested according to the standards of compaction and CBR tests. The results depict that the use of zeolite reduces Maximum Dry Density (MDD) while it increases Optimum Moisture Content (OMC) of cemented sand. Furthermore, the inclusion of zeolite up to 30% of cement content contributes to the highest CBR values due to the pozzolanic and chemical reactions. Finally, some correlations with high correlation coefficients are proposed between the CBR and MDD of zeolite-cemented sand.

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“…Akbari et al [42] indicated that the replacement of lime by 40% of its weight by zeolite has a beneficial effect on mechanical behavior of kaolin clay. Chenarboni et al [43] investigated the influence of cement replacement with zeolite on the UCS of the stabilized soil specimens. The results showed that partial cement replacement with zeolite about 30% resulted in achieving the maximum UCS.…”

Section: Introductionmentioning

confidence: 99%

Utilization of Zeolite to Improve the Behavior of Cement-Stabilized Soil

ShahriarKian

Kabiri

Bayat

2021

Int. J. of Geosynth. and Ground Eng.

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In this paper, a series of unconfined compressive strength (UCS) tests were performed to study the effect of cement content, zeolite content, initial moisture content, number of freeze-thaw cycles, and curing time on the UCS of low-plasticity silty sand-clayey sand. The results indicate that zeolite can be used along with cement as a stabilizer to enhance mechanical behavior of the soils. The specimens containing cement and zeolite show better response with a higher UCS than the stabilized samples with cement or zeolite alone. The addition of zeolite has an important effect on the increase in both UCS value and failure strain of cement-stabilized specimen. However, the stress-strain curve of stabilized specimens is not influenced significantly by the increase of zeolite content from 3 to 9%. The UCS values of the stabilized specimens decreased as the number of freeze-thaw cycles increased. The cement-stabilized samples have freeze-thaw durability when zeolite content increases from 3 to 9%. The stabilized specimens with 6% cement and 9% zeolite have slightly higher freeze-thaw durability than other specimens. The UCS of the specimens compacted on the dry side is more than that of the compacted sample on the OMC or wet side of optimum for given additives contents. The specimens compacted on the dry side of optimum exhibited a lower failure strain. The implication of this work is significant in geotechnical practice; it provides a general knowledge of stabilization of soils using cement and zeolite and the quantities to use to achieve the desired geotechnical properties.

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The effect of zeolite and cement stabilization on the mechanical behavior of expansive soils

Cited by 80 publications

References 31 publications

Hydraulic and Swell–Shrink Characteristics of Clay and Recycled Zeolite Mixtures for Liner Construction in Sustainable Waste Landfill

Hydraulic and Swell–Shrink Characteristics of Clay and Recycled Zeolite Mixtures for Liner Construction in Sustainable Waste Landfill

Effect of Zeolite on the Compaction Properties and California Bearing Ratio (CBR) of Cemented Sand

Utilization of Zeolite to Improve the Behavior of Cement-Stabilized Soil

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