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Biomediated control of colloidal silica grouting using microbial fermentation [PDF]

open access: yesScientific Reports, 2023
Colloidal silica grouting is a ground improvement technique capable of stabilizing weak problematic soils and achieving large reductions in soil hydraulic conductivities for applications including earthquake-induced liquefaction mitigation and ...
Michael G. Gomez   +2 more
doaj   +2 more sources

Effect of CPP-ACPF, resin infiltration, and colloidal silica infiltration on surface microhardness of artificial white spot lesions in primary teeth: An in vitro study [PDF]

open access: yesDental Research Journal, 2022
Background: Remineralizing agents such as fluoride and casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) are popular treatment choices for incipient enamel lesions. Recently introduced resin infiltration enhances the esthetics of teeth affected
Aranta Avinash Chindane   +2 more
doaj   +2 more sources

Microhardness and Penetration of Artificial White Spot Lesions Treated with Resin or Colloidal Silica Infiltration [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2017
Introduction: Infiltration of early enamel lesions by materials having remineralizing capacity seems to improve aesthetics and arrests caries progression. Aim: To evaluate and compare the surface microhardness and penetration depth of a low viscosity
Jyothi Mandava   +6 more
doaj   +2 more sources

Experimental investigation of the properties of collapsible soil stabilized by colloidal silica [PDF]

open access: yesScientific Reports
Collapsible soils pose significant geotechnical challenges due to their tendency to exhibit high strength under natural moisture conditions but undergo substantial settlement upon wetting. To address this issue, various stabilizing agents, including lime,
Fatemeh Bakhshandeh   +2 more
doaj   +2 more sources

I‌N‌V‌E‌S‌T‌I‌G‌A‌T‌I‌O‌N O‌F T‌H‌E B‌E‌H‌A‌V‌I‌O‌R O‌F S‌T‌A‌B‌I‌L‌I‌Z‌E‌D S‌I‌L‌T‌Y S‌A‌N‌D W‌I‌T‌H C‌O‌L‌L‌O‌I‌D‌A‌L S‌I‌L‌I‌C‌A A‌G‌A‌I‌N‌S‌T L‌I‌Q‌U‌E‌F‌A‌C‌T‌I‌O‌N [PDF]

open access: yesمهندسی عمران شریف, 2022
Chemical injection is a useful geotechnical procedure for stabilizing soils and also making them impermeable. For characterizing the soil stabilized by colloidal silica, the clean and silty sand samples with silt values of 20 and 40 percent, in both ...
I. Nouri Delavar   +2 more
doaj   +1 more source

Investigation of the Use of Various Silica Source on NaX Zeolite Properties [PDF]

open access: yesJournal of Chemical and Petroleum Engineering, 2017
Silicon and aluminum sources are most important reactants in the synthesis of zeolite. The use of the silicon source has an important effect on the crystallization of zeolites. Also, it can change the properties of the end product.
Atieh Eskandari   +3 more
doaj   +3 more sources

Coupled Effect of Carbon Nanotubes and Crushing on Shear Strength and Compression of Calcareous Sand Seeped by Colloidal Silica

open access: yesGeofluids, 2022
Colloidal silica, which has a low viscosity, can seep quickly through sand and subsequently form silica gel to stabilize the sand. The addition of carbon nanotubes can improve the strength of the sand-gel composite.
Weifeng Jin, Ying Tao, Rongzhong Cheng
doaj   +1 more source

Permeation grouting of low-permeability silty sands with colloidal silica

open access: yesCase Studies in Construction Materials, 2023
Permeation grouting is used to fill the voids in soils with particulates for the purpose of improving soil strength. The technique has been predominatly used for cohesionless soils, however due to nanotechnological advancements in colloidal silica, its ...
Gang Liu   +6 more
doaj   +1 more source

Colloidal silica as a grouting material for the temporary encapsulation of heat-generating radioactive waste during removal and transport operations: A proof of concept

open access: yesFrontiers in Energy Research, 2023
Hazardous nuclear waste is produced at all stages during the nuclear fuel cycle. The removal operations of nuclear waste from nuclear reactors and/or storage facilities, such as spent fuel pools and storage silos, pose a hazard for the workforce and the ...
Arianna Gea Pagano   +2 more
doaj   +1 more source

Effect of Wood Fiber on the Strength of Calcareous Sand Rapidly Seeped by Colloidal Silica [PDF]

open access: yesMATEC Web of Conferences, 2019
Silica nano-particles are suspended in the colloidal silica and can be induced to gradually gel after the PH value changes. Thus colloidal silica can be utilized to rapidly seep through loose calcareous sand, and the silicon gel is gradually formed to ...
Jin Weifeng   +3 more
doaj   +1 more source

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