Dynamic properties and environmental impact of waste red mud-treated loess under adverse conditions

Chen, Ruifeng; Cai, Guojun; Congress, Surya Sarat Chandra; Dong, Xiaoqiang; Duan, Wei

doi:10.1007/s10064-020-01937-1

Cited by 25 publications

(5 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Chen et al [ 31 ] evaluated the dynamic characteristics and environmental impact (dynamic stress, σ d , moisture content, w , confining pressure, σ 3 , and loading frequency, f ) of loess treated with a combination of RM and a small amount of cement (RM-cement) under adverse conditions. The results demonstrated that σ d and w have a greater effect on treated loess than σ 3 and f .…”

Section: Solid Wastes Used For Forming Srsmentioning

confidence: 99%

“…The pozzolanic mechanism can be explained by reactions, as shown in Eqs. (4, 5, 6): Chen et al [31] evaluated the dynamic characteristics and environmental impact (dynamic stress, σ d , moisture content, w, confining pressure, σ 3 , and loading frequency, f) of loess treated with a combination of RM and a small amount of cement (RM-cement) under adverse conditions. The results demonstrated that σ d and w have a greater effect on treated loess than σ 3 and f. The higher w significantly reduced the dynamic load resistance of the treated loess; however, the addition of RM-cement can still improve the microstructure and water sensitivity of the loess.…”

Section: Rmmentioning

confidence: 99%

“…Traditional stabilizing agents may have negative impacts on the environment and ecology [23,24]; for example, the production of cement or lime consumes high amounts of energy and can result in carbon dioxide (CO 2 ), methane (CH 4 ), and nitrous oxide (N 2 O) emission [25,26]. Accordingly, different researchers have explored the use of solid wastes as an alternative material to ensure that the geotechnical properties of problem soils meet the minimum standard requirement [27][28][29][30][31][32][33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Reutilization of solid wastes to improve the hydromechanical and mechanical behaviors of soils — a state-of-the-art review

Liu

Hung

2023

Sustain Environ Res

View full text Add to dashboard Cite

The rapid urbanization, industrialization, and population growth have led to a considerable rise in solid waste production, highlighting the need for efficient solid waste management and recycling methods. To address the challenge of solid waste production, an alternative solution is to repurpose it in geotechnical engineering. This offers promising benefits as solid waste exhibits various mechanisms that can improve soil's hydromechanical and mechanical behaviors. This review aims to comprehensively analyze the effects and potential application of various solid waste types to stabilize and reinforce soil. The impacts and research trends of industrial waste, such as fly ash, red mud, ground granulated blast-furnace slag, and construction and demolition waste, as well as agricultural and municipal solid wastes, including rice husk ash, press mud, used waste tires, and face masks, on soil properties were identified. The findings contribute to a better understanding of the potential of solid waste as a sustainable and cost-effective solution for improving soil quality, highlighting new research themes in this area. A wide range of innovative methods to stabilize and reinforce soil have also been proposed; however, ingenious and effective containment techniques, as well as addressing the potential impacts of climate change on stabilized and reinforced soils (SRS), still need to be developed for robust field applications. This state-of-the-art review offers useful insights into the reutilization of solid wastes as a promising alternative for improving the hydromechanical and mechanical behaviors of SRS.

show abstract

Section: Solid Wastes Used For Forming Srsmentioning

confidence: 99%

Section: Rmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Reutilization of solid wastes to improve the hydromechanical and mechanical behaviors of soils — a state-of-the-art review

Liu

Hung

2023

Sustain Environ Res

View full text Add to dashboard Cite

show abstract

“…With the vigorous development of the economy and the continuous rise in consumption, the development of the logistics industry has gradually become one of the most important indicators used to assess a country’s modernization and comprehensive national power, which means that the carrying capacity of freight trains, freight cars, and other means of transportation has continued to rise. Subgrade, as a structure-bearing traffic load, has strength, stiffness, and other mechanical indexes that will decay with an increase in the number of traffic load cycles, resulting in excessive long-term settlement of the subgrade, which threatens the safety of infrastructure 1 – 3 .…”

Section: Introductionmentioning

confidence: 99%

Deformation constitutive model of subgrade soil under intermittent cyclic loading

Zhang

Chen

Xing

et al. 2023

Sci Rep

View full text Add to dashboard Cite

During the actual operation of subways, high-speed railway, and other infrastructure, subgrade soil will be subjected to periodic vibration and intermittent loading, i.e., intermittent cyclic load. To study the deformation characteristics of subgrade soil under intermittent cyclic loading, the Newtonian dashpot in the generalized Kelvin model is replaced by the fractional Abel dashpot, a fractional generalized Kelvin model is established. Then, a nonlinear viscoplastic body model considering damage is proposed, which is connected in series with the improved fractional generalized Kelvin model, and the deformation constitutive model of soil under intermittent cyclic loading is obtained. Finally, the effectiveness and applicability of the model are analyzed, and the model is compared with other constitutive models. The results show that the constitutive model established in the paper can reflect the combined effect of confining pressure, frequency, dynamic stress amplitude and other factors on the cumulative plastic strain of soil, and can well characterize the development law of three types of cumulative plastic strain curves of soil: stable, critical, and failure. The fitting parameters $$\alpha$$ α and $$\eta$$ η tend to decay and rise, respectively, with the increase in loading stage N, which reflects the rationality and accuracy of the model.

show abstract

“…In addition, clay minerals significantly impact on the microstructure and fabric of different clay minerals specimens. Some previous studies [46,47] found that the influence of mineral composition on mechanical properties, especially dynamic properties, could not be ignored for cohesive soil. Sun et al [48] proved that the microstructure and fabric of natural marine clay with the same initial and loading states correlated with their mechanical properties by performing test using a field emission scanning electron microscope.…”

mentioning

confidence: 99%

Effects of Clay Mineral Composition on the Dynamic Properties and Fabric of Artificial Marine Clay

Shan

Wang

Cui

et al. 2021

JMSE

View full text Add to dashboard Cite

Marine clays are easily affected by different mineral composition in cyclic load-based geological hazards. Therefore, based on analyzing the mineral composition of natural marine clay, it is the key to predict the dynamic properties of natural materials under cyclic loading by using quantitated artificial marine clay. In this study, the marine clay found in the South China Sea deltas was investigated. Based on the results of geological conditions and mineral composition analyses, raw non-clay minerals (such as quartz, albite) and clay minerals (such as Na-montmorillonite and kaolinite) were used to produce artificial marine clay, the dynamic properties of which were studied from the impact of mineral composition. Dynamic triaxial laboratory testing for artificial marine clay comprising various clay minerals was performed under identical test conditions. The artificial marine clay with high montmorillonite content exhibited slower development of strain, more sluggish growth in pore water pressure, more rounded hysteresis curves, greater stiffness, and more prolonged viscous energy growth than the clay with low montmorillonite content. In addition, the flocculated fabric of the artificial marine clay with high montmorillonite content demonstrated sufficient pore space changes, more uniform pore distribution, and larger specific surface area than the dispersed fabric of the clay with low montmorillonite content. The factors arising from the influence of montmorillonite may lead to microstructural and fabric changes, hinder the development of pore water, and increase intergranular contact stiffness as well as delay the cyclic strain amplitude at the breakpoint of viscous energy dissipation. In general, the results presented in this study confirm that clay minerals, especially montmorillonite, have significant influence on the dynamic properties of large strain.

show abstract

Dynamic properties and environmental impact of waste red mud-treated loess under adverse conditions

Cited by 25 publications

References 67 publications

Reutilization of solid wastes to improve the hydromechanical and mechanical behaviors of soils — a state-of-the-art review

Reutilization of solid wastes to improve the hydromechanical and mechanical behaviors of soils — a state-of-the-art review

Deformation constitutive model of subgrade soil under intermittent cyclic loading

Effects of Clay Mineral Composition on the Dynamic Properties and Fabric of Artificial Marine Clay

Contact Info

Product

Resources

About