Experimental Study on Strength and Microstructure of Glacial Till Stabilized by Ionic Soil Stabilizer

Huang, Yifan; Fan, Wenfeng; Wu, Jiahui; Xiang, Xinglong; Wang, Guan

doi:10.3390/buildings12091446

Cited by 4 publications

(1 citation statement)

References 52 publications

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“…Currently, there is a lack of research on grouting technology and grouting materials in different dense geological conditions, particularly regarding grouting materials suitable for the characteristics of glacial debris. On the other hand, research on curing agents for consolidating common soil and wind-blown sand has made significant progress, with numerous research findings available [20][21][22]. Traditional materials such as lime and cement are widely used as components of these curing agents for soil reinforcement.…”

Section: Introductionmentioning

confidence: 99%

The Impact of New Composite Curing Agents on the Curing Properties of Glacial Debris in the Pulang Copper Deposit

Zeng,

Feng,

Ren

et al. 2023

Buildings

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In recent years, Pulang Copper Deposit has experienced multiple occurrences of debris flow, of varying magnitudes, which have significantly impacted the safety of mining operations. Debris flow has become a major safety hazard of natural caving mining in Pulang Copper Deposit. To address the issues of the formation of debris flow due to the collapse of glacial debris in the Pulang Copper Deposit, this paper proposes new composite curing agents for grouting and curing glacial debris. The study investigates the influence of curing agents’ proportions on the mechanical property, water stability, and permeability of solidified glacial debris. Hydration and consolidation mechanisms were analyzed based on XRD and SEM test results. The results indicate that the mechanical properties of solidified glacial debris with the new composite curing agents A, B, and C are superior to those with cement. The permeability coefficients of the solidified glacial debris with 7% dosage of the new composite curing agents A, B and C are both less than 1 × 10−6 cm/s. The reaction between the new composite curing agents and the glacial debris generates crystalline product ettringite (AFt) and gel-like hydration product calcium silicate hydrate (C-S-H). These products enhance interparticle bonding and fill the voids among the glacial debris, which is the main source of strength for the solidified glacial debris. These new composite curing agents provide important reference value for addressing and preventing surface glacial debris collapse.

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Section: Introductionmentioning

confidence: 99%

The Impact of New Composite Curing Agents on the Curing Properties of Glacial Debris in the Pulang Copper Deposit

Zeng,

Feng,

Ren

et al. 2023

Buildings

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Experimental investigations on the physico-mechanical and microstructural properties of loess reinforced with anionic polyacrylamide

Yang,

Li,

et al. 2023

Construction and Building Materials

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Influence of Different Industrial Waste Residues on Engineering Properties of High Liquid Limit Soil and Its Microscopic Mechanism

et al. 2023

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High liquid limit soil has unfavorable engineering geological characteristics, such as strong disintegration, dry shrinkage and easy cracking, and easy uplift when encountering water, which will cause various problems to the engineering. At present, the relationship between the physical and mechanical properties of high liquid limit soil and the characteristics of water-soil interaction is still not clear enough. In this study, the high liquid limit soil of Zhanjiang Avenue was selected to explore the influence of different ratios of three kinds of industrial waste residues (blast furnace slag, carbide slag, and tailing sand) on the high liquid limit soil. Aiming at the common adverse engineering geological phenomena of high liquid limit soil, such as easy disintegration, dry shrinkage crack, and easy uplift in water, the effects of different industrial waste residues on the water-soil interaction characteristics of high liquid limit soil are explored through disintegration and crack tests. In addition, the effects of different kinds and ratios on the free expansion rate, pH, unconfined compressive strength, and shear strength parameters of high liquid limit soil were studied. The improvement mechanism of different industrial waste residues on the engineering properties of high liquid limit soil is discussed in terms of mineral composition and microstructure. Based on the experimental results of this study and considering the cost and engineering practice, it is suggested that the modified carbide slag optimal ratio of high liquid limit soil of Zhanjiang Avenue is 8%. The results can provide certain guidance for the improvement and application of different industrial waste residues on high liquid limit soil to achieve the effect of sustainable development.

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Experimental Study on Strength and Microstructure of Glacial Till Stabilized by Ionic Soil Stabilizer

Cited by 4 publications

References 52 publications

The Impact of New Composite Curing Agents on the Curing Properties of Glacial Debris in the Pulang Copper Deposit

The Impact of New Composite Curing Agents on the Curing Properties of Glacial Debris in the Pulang Copper Deposit

Experimental investigations on the physico-mechanical and microstructural properties of loess reinforced with anionic polyacrylamide

Influence of Different Industrial Waste Residues on Engineering Properties of High Liquid Limit Soil and Its Microscopic Mechanism

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