Chemical Grouting and Soil Stabilization

Karol, Reuben H.

doi:10.4324/9780429213830

Cited by 149 publications

(36 citation statements)

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“…Finally, we would like to comment on the possible implication of our result on chemical grouting. Chemical grouting is a common industrical technique to stabilize soil by injecting precipitating solution [7]. As mentioned, chemical grouting share essential physics with our system: flow, precipitation, and frictional envrionment, i.e.…”

Section: Mathematical Modelingmentioning

confidence: 99%

“…Hydrodynamic flow is generated by osmotic pressure, and precipitation occurs when the metal salt and sodium silicate solution mix to form a gel. This same coupling of flow and precipitation especially under frictional environment is also relevant for geophysical conditions [5], cellular motility [6], as well as industrial application [7]. Such systems often contain various chemicals and/or biological agents, and thus a simplified physical view would be valuable for predicting the behavior of these systems.…”

Section: Introductionmentioning

confidence: 99%

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Pattern of a confined chemical garden controlled by injection speed

et al. 2017

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Pattern of confined chemical garden was controlled by the speed of injected fluid, and their mechanism is discussed. A confined chemical garden system was constructed where an aqueous solution of cobalt chloride was injected into a cell filled with sodium silicate solution. The reaction of these two solutions resulted in the formation of precipitation. The viscosities of the prepared aqueous solutions were set to be similar in order to rule out the possibility of Saffman-Taylor instability. The injection front showed three distinctive patterns: algaes, shells, and filaments, which were dependent on injection speed. The injection pressure and the spatio-temporal pattern of the injected fluid were measured, and a significant increase in the injection pressure was observed when the filament pattern appeared, which indicated the existence of thin lubrication layer between the precipitation and the substrate. The filament pattern was further analyzed quantitatively, and the number of active filaments was determined to be proportional to the injection speed. A mathematical model was constructed that considered both the viscous effect from the thin lubrication layer and the Laplace pressure. This model successfully reproduced the characteristic filament dynamics.

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Section: Mathematical Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Pattern of a confined chemical garden controlled by injection speed

et al. 2017

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“…As a result, if the moisture content of these soils can be stabilized, many of the most serious issues can be resolved. Stabilizers of many varieties are employed to solve this problem [2,3].…”

Section: Introductionmentioning

confidence: 99%

Strength and Index Properties Analysis of Thermally Generated Silica Fume (TGSF) Infused Organic Soil: Soil Swelling Behavior Treatment Breakdown

Sheraz

Younas²,

Shah³

et al. 2020

J. ICT des. eng. technol. sci.

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This study includes an experimental investigation and dissemination of the stabilization of an expansive land from Nandipur, Punjab, Pakistan using silica smoke Thermally Generated Silica Fume (TGSF). The bright buildings are constantly exposed to structural loads; therefore, repairs and maintenance are due to the cyclic source drying of the underlying expansive 􀅮loors, caused by watering and drying. There is a growing interest in using industrial waste to reduce soil swelling. In this study, in particular, the stabilizing materials were tested for their suitability as puzzles. After arguing that silica vapor TGSF is suf􀅮iciently active, it was used in ratios of 5% TGSF, 10% TGSF, and 15% TGSF, based on the soil dry matter. The physical properties and volume change behavior of the natural soil and the treated soil were investigated. After completing the test program, this includes the grain size distribution, the Atterberg limit, the speci􀅮ic weight, the relationship between moisture and dry density, the Unrestricted Compressive Strength (UCS), and the swell potential. It was concluded that there was a remarkable weakening, especially in the swelling and shrinking behavior. In the end, it was concluded that the addition of 5% TGSF was more effective. It is therefore recommended to mix and compact the expansive soils exposed to light loads such as sidewalks, streets and buildings with a maximum of two stories.

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confidence: 99%

“…Current reinforcement technologies usually utilize chemical or physical approaches and use synthetic polymers as the cementation agent. Sometimes these chemical polymers are toxic and nondegradable in the natural environment, and thus they might lead to new contamination and damage to the environment for long periods of time. While compared with the traditional methods, microbial reinforcement, an emerging environment-friendly technology, is superior in the reinforcement applications.…”

mentioning

confidence: 99%

A Living Eukaryotic Autocementation Kit from Surface Display of Silica Binding Peptides on Yarrowia lipolytica

Tang¹,

Wang²,

Cheng³

et al. 2016

ACS Synth. Biol.

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With the development of civil engineering, the demand for suitable cementation materials is increasing rapidly. However, traditional cementation methods are not eco-friendly enough and more sustainable approach such as biobased cementation is required. To meet such demand, Euk.cement, a living eukaryotic cell-based biological autocementation kit, was created in this work. Through the surface display of different silica binding peptides on the fungus Yarrowia lipolytica, Euk.cement cells can immobilize onto any particles with a silica containing surface with variable binding intensity. Meanwhile, recombinant MCFP3 released from the cells will slowly consolidate this binding of cells to particles. The metabolism of immobilized living cells will finally complete the carbonate sedimentation and tightly stick the particles together. The system is designed to be initiated by blue light, making it controllable. This autocementation kit can be utilized for industrial and environmental applications that fit our concerns on making the cementation process eco-friendly.

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Chemical Grouting and Soil Stabilization

Cited by 149 publications

References 0 publications

Pattern of a confined chemical garden controlled by injection speed

Pattern of a confined chemical garden controlled by injection speed

Strength and Index Properties Analysis of Thermally Generated Silica Fume (TGSF) Infused Organic Soil: Soil Swelling Behavior Treatment Breakdown

A Living Eukaryotic Autocementation Kit from Surface Display of Silica Binding Peptides on Yarrowia lipolytica

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