Alkali activation of lime kiln dust and fly ash blends for the stabilisation of demolition wastes

Mohammadinia, Alireza; Arulrajah, Arul; D'Amico, Angelo; Horpibulsuk, Suksun

doi:10.1080/14680629.2018.1555095

Cited by 12 publications

(6 citation statements)

References 14 publications

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“…(2021) observed 50% CDW mixed with silty soil has the maximum dry density, UCS and CBR value. Mohammadinia et al. (2018a) experienced reduced OMC and increased MDD of soil after adding CDW with lime kiln dust.…”

Section: Resultsmentioning

confidence: 99%

“… Dobrescu and Calarasu (2020) emphasizes the significance of the soil improvement capability of CDW when mixed with soil. Recycled fine aggregates of concrete, brick and mortar from CDW with proper size and proper mixing ratio with soil give a satisfactory result in improving different geotechnical properties of the existing soil ( Mohammadinia et al., 2018 ; Varaprasad et al., 2019 ). In poor clayey soil, using an optimal amount of CDW improves the unconfined compressive strength, CBR, and permeability.…”

Section: Introductionmentioning

confidence: 99%

“…The type of fine-grained soil largely determined the oedometer features, particularly the swelling and consolidation of CDW-clay mixes ( Mohialdeen et al., 2020 ). In addition to necessity, CDW aggregates can also be stabilized by fly ash, lime kiln dust, and cement kiln dust ( Mohammadinia et al., 2018a , 2018b ). According to Farias et al.…”

Section: Introductionmentioning

confidence: 99%

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Improvement of consolidation properties of clay soil using fine-grained construction and demolition waste

Islam

Islam²,

Hoque³

et al. 2022

Heliyon

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Improvement of consolidation properties of clay soil using fine-grained construction and demolition waste

Islam

Islam²,

Hoque³

et al. 2022

Heliyon

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“…Ductility together with strength-toweight ratio was enhanced when crumb rubber was deployed as a sand substitute in flowable concrete fill. Mohammadinia et al (2018a) presented an alternate precursor alkali-activation that stabilizes CD materials using lime kiln dust (LKD) and Class F-FA. For optimizing the alkali-activation effect, several LKD and FA mixtures were assessed for effectiveness in augmenting the CD material durability under repeated loads.…”

Section: Other Workmentioning

confidence: 99%

Soil stabilization by integrating dust particles with calcium lignosulphanate

Chiranjeevi,

Singh,

Kishan

2023

Progress in Physical Geography: Earth and Environment

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This paper analyzes the stabilizing effect of stone dust, granite dust, marble dust, and calcium lignosulphonate on construction materials and natural soils during road construction. The ultimate aim was to enhance the soil’s engineering properties such that the pavement constructed could correctly withstand the load applied. To achieve this, every stabilizer was amalgamated with the soil at various percentages between 5 and 50%. Measurements were made of Atterberg limit tests, moisture content, and specific gravity. The research demonstrated that a diminution in optimal moisture content was seen, with an elevation in maximum dry density and California bearing ratio (CBR). Enhancements in the unconfined compressive strength were also identified. The outcomes determined that the untreated soil’s CBR was 2.27% and in the case of soil with 45% additives, the CBR attained was 5.05%. When the soil was mixed with 50% additives, performance of 30.21%, 17.42%, and 12.82% was exhibited for (a) liquid limit, (b) plastic limit, and (c) plasticity index. Moreover, via the addition of presented stabilizers, the soil’s mechanical properties were elevated appreciably.

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“…b Length completed under PMGSY [1] If used in weak soils, fly ash enhances the soil's CBR value by the interlocking phenomenon of soil fly ash [2][3][4]. By consuming lime kiln dust (LKD) and class F fly ash, Mohammadinia et al [5] stabilized the mechanical properties of recycled construction and demolition (C&D) aggregates as a feasible replacement for road bases/subbases. For light traffic road, the granular materials stabilized with 10% S (slag) and 5% FA (fly ash) + 5% S blends have been discovered as a viable, long-term option for stabilizing forthcoming road bases and subbases [6].…”

mentioning

confidence: 99%

Experimental investigation to study the effect of reinforcement on strength behavior of fly ash

Ahmad

2022

J. Eng. Appl. Sci.

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Stabilization of the subgrade soil is a primary and significant phase in highway construction. In constructing a flexible pavement subgrade, soil investigation is an important parameter, as the load is transferred to it under a repetitive vehicle load. Subgrade soils with low strength of bearing are incapable of bearing heavy loads and are considered unsuitable for construction. The author proposed a solution for the weak subgrade of flexible pavements in this paper. This study aims to address weak subgrade issues by using fly ash reinforced with reinforcement. The California bearing ratio test (CBR) unsoaked was performed on the fly ash positioning with square and circular reinforcement patterns in the center of the loaded area. The test was performed using different reinforcement of diameters 1 and 2 and twisted 2 mm (1 mm diameter reinforcement overlap, then it was twisted over each other to make a 2 mm diameter twisted reinforcement). The CBR value for plain fly ash is found to be 14.64%, and the maximum CBR value for square and circular reinforcement is 34.89% and 24.23%, respectively. The percentage increase in the CBR value for square and circular reinforcement is to be 138.31% and 65.50%, respectively. The study found that the reinforcement spacing pattern affects the subgrade bearing capacity. As the reinforcement spacing decreases, the bearing capacity of the fly ash increases with the increment of reinforcement diameter. This study is important for subgrade soil strengthening since this fine reinforcement has increased the bearing capacity of poor soils.

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Alkali activation of lime kiln dust and fly ash blends for the stabilisation of demolition wastes

Cited by 12 publications

References 14 publications

Improvement of consolidation properties of clay soil using fine-grained construction and demolition waste

Improvement of consolidation properties of clay soil using fine-grained construction and demolition waste

Soil stabilization by integrating dust particles with calcium lignosulphanate

Experimental investigation to study the effect of reinforcement on strength behavior of fly ash

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