A study of the mechanical properties, environmental effect, and microscopic mechanism of phosphorus slag-based uranium tailings backfilling materials

Journal of Cleaner Production, Год журнала: 2024, Номер 446, С. 141306 - 141306

Опубликована: Фев. 23, 2024

Язык: Английский

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Study of the influence of pore structure on the radon emission characteristics of terrestrial sedimentary shales after high temperature action

Environmental Science and Pollution Research, Год журнала: 2024, Номер 31(9), С. 13218 - 13229

Опубликована: Янв. 19, 2024

Язык: Английский

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Geochemical characterization and implications of soil gas and geothermal fluids in the fault zone of Xiongan new area

Applied Geochemistry, Год журнала: 2024, Номер 161, С. 105886 - 105886

Опубликована: Янв. 1, 2024

Язык: Английский

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Experimental study on coupling characteristics of radon exhalation from surrounding rock of deep uranium mines

Journal of Radioanalytical and Nuclear Chemistry, Год журнала: 2024, Номер 333(2), С. 979 - 993

Опубликована: Янв. 19, 2024

Язык: Английский

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Temperature-humidity evolution and radon exhalation mechanism of red clay-bentonite covering layer in uranium mill tailings pond

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Янв. 30, 2024

To ensure the safety and stability of beach surface decommissioned uranium mill tailings pond, this paper uses red clay-bentonite clay (1:1) to carry out covering layer radon reduction simulation experiments study temperature, humidity, effect under natural conditions. The results show that exhalation rate cover is only 0.32 times clay, which has a better effect. water retention comparable heat preservation than layer. temperature curves follow same evolution trend were close together in outdoor conditions, humidity showed difference 1% 3%. Soil dominant factor affecting variation with unsaturated content.

Язык: Английский

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Radon emission characteristics and pore structure evolution of self-compacting concrete with silica fume-molybdenum tailings under different curing environments

Journal of Building Engineering, Год журнала: 2024, Номер unknown, С. 110769 - 110769

Опубликована: Сен. 1, 2024

Язык: Английский

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Study on the pore structure and radon emission characteristics of typical rocks in the Lintong area

Bulletin of Engineering Geology and the Environment, Год журнала: 2023, Номер 82(7)

Опубликована: Июнь 13, 2023

Язык: Английский

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Preliminary Results of the Kuznetsk Coal Basin Cover Deposits Radon Hazard Assessment

Geosciences, Год журнала: 2025, Номер 15(1), С. 14 - 14

Опубликована: Янв. 6, 2025

The study of the influence geological structure (e.g., faults) on radon emanations is usually applicable provided that there are conditionally background (control) territories with which indicators will be compared. In presented study, we selected an area where pre-Cenozoic faults could potentially associated hazard Kuznetsk coal basin were not identified. cover deposits in represented by loamy and clayey strata overlying Paleozoic sedimentary cycles. field was estimated based flux density (RFD) activity concentration (RAC) soil gas. RAC measured two ways—by sorption method activated carbon active sampling gas from a borehole. At same time, role meteorological conditions physical properties assessed. Our shows local variations insignificant do have significant effect basin, exception moisture. High values territory considered as background, absence faults, suggest other causes (the presence latest Neogene–Quaternary high concentrations 226Ra, or insufficiently studied causes). Due to it possible assume diffusion type transfer environment, indicates shallow source such concentrations. results indicate studies 226Ra content additional similar areas should also carried out.

Язык: Английский

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Multiscale investigation into the hydrogel-stabilized river bank sand: Sight from NMR and CT technology

Construction and Building Materials, Год журнала: 2025, Номер 460, С. 139900 - 139900

Опубликована: Янв. 1, 2025

Язык: Английский

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Experimental study on gas permeability and radon control performance of red clay covering layer on uranium mill tailings pond

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Март 10, 2025

The decommissioning of uranium mill tailings pond generally employs covering layer to diminish radon exhalation, with soil permeability, thickness, and moisture content being essential considerations in assessing the efficacy reduction. This research uses a proprietary multi-field coupled seepage testing apparatus simulated exhalation device evaluate samples' permeability control effectiveness across different thicknesses, pressure gradients, levels. findings demonstrate that gas diminishes increasing exhibiting more pronounced decline at pressures below 0.35 MPa. Moreover, both thickness significantly influence rate, which decreases nonlinearly rise variables. A positive link exists between rate aligning natural exponential function model.

Язык: Английский

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