Effect of dry-wet cycles on dynamic mechanic and microstructure of cemented broken mudstone

Yi, Qingyu; Pu, Hai; Preuße, Axel; Bian, Zhengfu; Wu, Jiangyu

doi:10.1016/j.conbuildmat.2022.129347

Cited by 11 publications

(2 citation statements)

References 61 publications

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“…The soil physicochemical index test was carried out, the grain-level composition and XRD patterns are shown in Figure 2 and Figure 3, respectively, and the chemical composition and basic properties of the original moraine formation are shown in Table 1 and Table 2, respectively. From Yi et al, 2022). As can be seen from Table 2, the wet density of the moraine stratum is 2.29 g/cm 3 , the dry density is 2.21 g/cm 3 , the plastic limit of the soil is 16%, the liquid limit is 22% its low liquid limit powdery clay, the permeability coefficient of the soil is 8.95×10 -5 cm/s for the weak permeability level.…”

Section: Experimental Design 21 Test Materialsmentioning

confidence: 92%

Water-Related Natural Disasters in Mountainous Area, volume II

2024

Frontiers Research Topics

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Frontiers is more than just an open access publisher of scholarly articles: it is a pioneering approach to the world of academia, radically improving the way scholarly research is managed. The grand vision of Frontiers is a world where all people have an equal opportunity to seek, share and generate knowledge. Frontiers provides immediate and permanent online open access to all its publications, but this alone is not enough to realize our grand goals. Frontiers journal seriesThe Frontiers journal series is a multi-tier and interdisciplinary set of openaccess, online journals, promising a paradigm shift from the current review, selection and dissemination processes in academic publishing. All Frontiers journals are driven by researchers for researchers; therefore, they constitute a service to the scholarly community. At the same time, the Frontiers journal series operates on a revolutionary invention, the tiered publishing system, initially addressing specific communities of scholars, and gradually climbing up to broader public understanding, thus serving the interests of the lay society, too. Dedication to qualityEach Frontiers article is a landmark of the highest quality, thanks to genuinely collaborative interactions between authors and review editors, who include some of the world's best academicians. Research must be certified by peers before entering a stream of knowledge that may eventually reach the public -and shape society; therefore, Frontiers only applies the most rigorous and unbiased reviews. Frontiers revolutionizes research publishing by freely delivering the most outstanding research, evaluated with no bias from both the academic and social point of view. By applying the most advanced information technologies, Frontiers is catapulting scholarly publishing into a new generation. What are Frontiers Research Topics?Frontiers Research Topics are very popular trademarks of the Frontiers journals series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area.

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Section: Experimental Design 21 Test Materialsmentioning

confidence: 92%

Water-Related Natural Disasters in Mountainous Area, volume II

2024

Frontiers Research Topics

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“…The soil physicochemical index test was carried out, the grain-level composition and XRD patterns are shown in Figure 2 and Figure 3, respectively, and the chemical composition and basic properties of the original moraine formation are shown in Table 1 and Table 2, respectively. From (Zhao et al, 2018;Yi et al, 2022). As can be seen from Table 2, the wet density of the moraine stratum is 2.29 g/cm 3 , the dry density is 2.21 g/cm 3 , the plastic limit of the soil is 16%, the liquid limit is 22% its low liquid limit powdery clay, the permeability coefficient of the soil is 8.95×10 -5 cm/s for the weak permeability level.…”

Section: Test Materialsmentioning

confidence: 96%

Analysis of energy consumption characteristics and fracture characteristics of moraine grouting solidified body under uniaxial compression

Li,

Jiang,

Feng

et al. 2023

Front. Earth Sci.

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Glacial movement causes massive accumulation of fine-grained moraine, which often induces slope instability, moraine debris flow, and other geological hazards due to the effects of rain and the ice-snow melting. This study used a modified phosphoric acid-water glass slurry for grouting and curing moraine, and analyzed the influencing law of water glass Baume degree and curing age on energy consumption characteristics as well as the fracture properties of the grout-cured body of moraine using the uniaxial compression test. The results showed that the gel time of phosphoric acid-water glass slurry increased with the increasing addition of phosphoric acid and that it had a mutation phenomenon. The gel time increased linearly with the increasing addition of phosphoric acid before the mutation. Moreover, the compressive strength, pre-peak total energy, pre-peak elastic energy, pre-peak dissipative energy, elastic energy density, dissipative energy density, and pre-peak fracture toughness of the moraine curing body at same curing age increased linearly with the increase of water glass Baume degree by 46%–218%. The compressive strength, pre-peak elastic energy, and pre-peak elastic energy density of the moraine curing body increased with the curing age but grew slowly from 3 days to 7 days and rapidly from 7 days to 14 days. Through regression analysis of the test results, the fracture toughness calculation formula was derived from an energy perspective. These research results have significant implications for the reinforcement of moraine strata grouting and glacial debris flow disaster prevention and control.

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