Phase change composite materials of sodium alginate-SiO2 aerogel loaded with sodium sulfate decahydrate for cementing of natural gas hydrate layers

Chemical Engineering Journal, Год журнала: 2025, Номер 505, С. 159344 - 159344

Опубликована: Янв. 6, 2025

Язык: Английский

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Effect of calcium chloride-assisted calcined coal gangue as a supplementary cementitious material (SCM) on cement strength and microstructure

Construction and Building Materials, Год журнала: 2025, Номер 467, С. 140409 - 140409

Опубликована: Фев. 15, 2025

Язык: Английский

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Hydration Mechanism of Solid Waste Gelling Materials Containing Semi-Dry Desulfurization Ash

Gels, Год журнала: 2025, Номер 11(3), С. 193 - 193

Опубликована: Март 11, 2025

This study investigated the feasibility of using semi-dry desulfurization ash (DA) in combination with blast furnace slag (BFS) to prepare gelling materials, aiming improve resource utilization DA. The effects DA dosage and mechanical grinding on compressive strength hydration mechanism BFS-DA materials were investigated. results showed that optimum ratio was 60:40, strengths 14.21 MPa, 20.24 43.50 46.27 MPa at 3, 7, 28, 56 days, respectively. Mechanical greatly improved activity gel greatest increase 90 days for BFS mixed milled 30 min, increases 89.86%, 66.36%, 24.56%, 25.68%, respectively, 26.22 35.6 58.33 63.97 cumulative heat slurry about 120 J/g. main products formed ettringite, C-S-H gel, AFm, Friedel’s salt. Calcium sulfite participated hydration, a new product, Ca4Al2O6SO3·11H2O, formed. can be effectively used BFS-based its performance meets requirements GB/T 28294-2024 standard, which provides potential solution resources reduction impact environment.

Язык: Английский

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Study on the mechanical properties and solidification mechanism of ground granulated blast furnace slag-carbide slag-desulfurization gypsum solidified shield musk

Construction and Building Materials, Год журнала: 2025, Номер 475, С. 141166 - 141166

Опубликована: Апрель 11, 2025

Язык: Английский

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