Deterioration behavior of gypsum breccia in surrounding rock under the combined action of cyclic wetting-drying and flow rates

Jiang, Song; Huang, Meng; Wu, Xuezhen; Chen, Zefeng; Zhang, Kaishun

doi:10.1007/s10064-021-02231-4

Cited by 10 publications

(1 citation statement)

References 33 publications

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“…In addition, more than 70% of the rainfall occurred from April to August according to the recorded data from 1951 to 2019 in Guilin [1]. Therefore, a rock mass is usually in a state of wetting and drying cycles, and the damage and deterioration of the rock mass caused by this cyclic change is often more serious than that of sustained immersion [11][12][13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on Influence of Acidic Dry-Wet Cycles on Karst Limestone Deterioration and Damage

Zhang

Wang

et al. 2022

Geofluids

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This study is aimed at the problem of limestone deterioration and damage caused by the combination of acid rain and the dry-wet cycle in Guilin. Samples of limestone were taken to study the influence of acidic dry-wet cycles on limestone deterioration and damage. This was accomplished by performing nuclear magnetic resonance (NMR) measurements and inductively coupled plasma atomic emission spectrometer measurements on the limestone samples. The study found that with an increase in the number of cycles, the T 2 curve of the rock continuously shifts to the right, but the range of movement still decreases with pH increasing values. The T 2 spectrum area, rock porosity, porosity deterioration, mass loss rate, and water absorption rate all increase with an increase in the number of cycles, but the growth rate continues to decrease, and the increase is negatively correlated with pH. After the dry-wet cycles, the mass concentration of each element in the beaker is Ca, Mg, and Fe in order from high to low, and the mass concentration of each main element in the reaction solution increases with the increase in the number of acidic dry-wet cycles.

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Section: Introductionmentioning

confidence: 99%

Experimental Investigation on Influence of Acidic Dry-Wet Cycles on Karst Limestone Deterioration and Damage

Zhang

Wang

et al. 2022

Geofluids

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Bio‐Inspired Fluorescent Calcium Sulfate for the Conservation of Gypsum Plasterwork

Burgos‐Ruiz,

Ilett,

Roncal‐Herrero

et al. 2024

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In this work, the potential of bio‐inspired strategies for the synthesis of calcium sulfate (CaSO4·nH2O) materials for heritage conservation is explored. For this, a nonclassical multi‐step crystallization mechanism to understand the effect of calcein– a fluorescent chelating agent with a high affinity for divalent cations— on the nucleation and growth of calcium sulfate phases is proposed. Moving from the nano‐ to the macro‐scale, this strategy sets the basis for the design and production of fluorescent nano‐bassanite (NB‐C; CaSO4·0.5H2O), with application as a fully compatible consolidant for the conservation of historic plasterwork. Once applied to gypsum (CaSO4·2H2O) plaster specimens, cementation upon hydration of nano‐bassanite results in a significant increase in mechanical strength, while intracrystalline occlusion of calcein in newly‐formed gypsum cement improves its weathering resistance. Furthermore, under UV irradiation, the luminescence produced by calcein molecules occluded in gypsum crystals formed upon nano‐bassanite hydration allows the easy identification of the newly deposited consolidant within the treated gypsum plaster without altering the substrate's appearance.

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NMR-Based Investigation on the Wet–Dry Deterioration Characteristics of Gypsiferous Rocks Surrounding Underground Excavations

et al. 2022

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Deterioration behavior of gypsum breccia in surrounding rock under the combined action of cyclic wetting-drying and flow rates

Cited by 10 publications

References 33 publications

Experimental Investigation on Influence of Acidic Dry-Wet Cycles on Karst Limestone Deterioration and Damage

Experimental Investigation on Influence of Acidic Dry-Wet Cycles on Karst Limestone Deterioration and Damage

Bio‐Inspired Fluorescent Calcium Sulfate for the Conservation of Gypsum Plasterwork

NMR-Based Investigation on the Wet–Dry Deterioration Characteristics of Gypsiferous Rocks Surrounding Underground Excavations

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