Study on Mechanical Properties of Gold Mine Tailings Stabilized by Composite Alkali‐Activated Materials DOI Creative Commons
Zhenkai Pan, Shaohua Hu,

Meixian Qu

и другие.

Advances in Civil Engineering, Год журнала: 2025, Номер 2025(1)

Опубликована: Янв. 1, 2025

Gold mine tailings (GMTs) pose significant environmental challenges, and while alkali‐activated materials (AAMs) have been widely used as sustainable alternatives to Portland cement for stabilizing geotechnical materials, further research is needed optimize their composition performance, particularly by incorporating traditional industrial waste residues develop composite (CAAMs) with improved mechanical properties reduced impact. Different CAAMs admixtures (i.e., 0%, 3%, 5%, 8%) gold were prepared, the samples solidified under saturated water no air. In order investigate characteristics of CAAMs‐stabilized GMTs, laboratory direct shear tests carried out on after curing them 3, 7, 14, 28 days, respectively. The test results showed that extension time, brittleness increased, stress–displacement curves all cured specimens changed from plateau type peak type. Both time content are conducive improving strength GMTs samples, but increase rate decreased vertical confining stress increased. Furthermore, influence increment was larger than periods. exponential growth model could well describe change periods different stresses. paper can provide theoretical support application enhance stability dams.

Язык: Английский

State-of-the-art review of soil erosion control by MICP and EICP techniques: Problems, applications, and prospects DOI
Yong Wang, Xiaohao Sun, Linchang Miao

и другие.

The Science of The Total Environment, Год журнала: 2023, Номер 912, С. 169016 - 169016

Опубликована: Дек. 1, 2023

Язык: Английский

Процитировано

71
Improved methods, properties, applications and prospects of microbial induced carbonate precipitation (MICP) treated soil: A review DOI Creative Commons
Xuanshuo Zhang, Hongyu Wang,

Ya Wang

и другие.

Biogeotechnics, Год журнала: 2024, Номер 3(1), С. 100123 - 100123

Опубликована: Июль 18, 2024

Soil improvement is one of the most important issues in geotechnical engineering practice. The wide application traditional techniques (cement/chemical materials) are limited due to damage ecological environment and intensify carbon emissions. However, use microbial induced calcium carbonate precipitation (MICP) obtain bio-cement a novel technique with potential induce soil stability, providing low-carbon, environment-friendly, sustainable integrated solution for some problems environment. This paper presents comprehensive review latest progress based on MICP strategy. It systematically summarizes overviews mineralization mechanism, influencing factors, improved methods, characteristics, current field status MICP. Additionally, it also explores limitations correspondingly proposes prospective applications via approach improvement. indicates that utilization different environmental calcium-based wastes combination materials conducive meeting market demand. Furthermore, we recommend encourage global collaborative study practice view commercializing future. purports provide insights engineers interdisciplinary researchers, guidance future applications.

Язык: Английский

Процитировано

19
Fiber-reinforced microbially induced carbonate precipitation (MICP) for enhancing soil stability: Mechanisms, effects, and future prospects DOI Creative Commons
Shu Yang, Yuqi Song, Hao Fang

и другие.

Journal of Building Engineering, Год журнала: 2024, Номер 94, С. 109955 - 109955

Опубликована: Июнь 14, 2024

Microbially induced calcium carbonate precipitation (MICP) is an emerging technology proposed for soil improvement in recent years. It has environmental protection and sustainability advantages. Reinforcing fiber can effectively improve the flexibility of MICP-treated sandy material. The MICP synergistic solidified sand research results have attracted significant attention recently. This paper introduces reaction mechanism curing method MICP, including injecting soaking, spraying, pre-mixing, single-phase, step-by-step injection methods. summarizes effect various fibers, jute fiber, animal polypropylene carbon polyester polyvinyl alcohol (PVA), on sand. project summarized following results: 1) two-step improves uniformity distribution sample. 2) Adding provided more adsorption sites bacteria increased nucleation sites; 3)The fibrous network structure sample, combined with 'bridge' effect, efficient preventing cracks from expanding samples; 4) friction cohesion between itself column overall stability sample; 5) coupling sand, generated tensile strength (TS) specimens; 6) For two factors content length, unconfined compressive (UCS) greater than length. Fiber type influenced Meanwhile, development prospect was pointed out, influence pretreatment modification effect; mixed, uniform method; 3) mixing fibers properties cured specimens.

Язык: Английский

Процитировано

11
Effects of representative elementary volume size on three-dimensional pore characteristics for modified granite residual soil DOI
Tiande Wen,

Yinwei Luo,

Mingye Tang

и другие.

Journal of Hydrology, Год журнала: 2024, Номер unknown, С. 132006 - 132006

Опубликована: Сен. 1, 2024

Язык: Английский

Процитировано

11
A comprehensive review on the application of microbially induced calcite precipitation (MICP) technique in soil erosion mitigation as a sustainable and environmentally friendly approach DOI Creative Commons
Meghdad Payan,

Moein Khoshdel Sangdeh,

Mahdi Salimi

и другие.

Results in Engineering, Год журнала: 2024, Номер 24, С. 103235 - 103235

Опубликована: Окт. 25, 2024

Язык: Английский

Процитировано

11
Comparison of biomineralization kinetics induced by bacteria, bacterial enzyme, and soybean enzyme DOI
Guoliang Ma, Yang Xiao, Xiang He

и другие.

Acta Geotechnica, Год журнала: 2025, Номер unknown

Опубликована: Янв. 27, 2025

Язык: Английский

Процитировано

2
Sustainable improvement of granite sludge dust properties using microbially induced carbonate precipitation (MICP): strength enhancement, erosion prevention, and dust mitigation DOI

Siva Kesav Kumar Arnepalli,

Venkata Ramana Gondu,

Sumanth Chinthala

и другие.

Environmental Science and Pollution Research, Год журнала: 2025, Номер unknown

Опубликована: Янв. 4, 2025

Язык: Английский

Процитировано

1
Unlocking the Potential of Microbially Induced Calcium Carbonate Precipitation (MICP) for Hydrological Applications: A Review of Opportunities, Challenges, and Environmental Considerations DOI Creative Commons
Charalampos Konstantinou, Yuze Wang

Hydrology, Год журнала: 2023, Номер 10(9), С. 178 - 178

Опубликована: Авг. 26, 2023

Microbially induced calcium carbonate precipitation (MICP) is an innovative biocementation technique that facilitates the formation of within a pore network. Initially gaining prominence in field geotechnical engineering, MICP has attracted significant attention since its inception (the last three decades) and expanded reach across various engineering disciplines. Examples include rock mechanics, geology oil gas industry fields through generation rock-like specimens, plugging fractures, civil architectural material science for concrete repair, protection, self-healing building materials, environmental study biomimetic materials. In response to this burgeoning interest, current paper aims present comprehensive review main biochemical mechanisms underlying (bacterial ureolytic activity, reactions duration settling times, chemical solution properties), their direct relevance altering hydraulic mechanical properties, both at microscale macroscale responses, mechanisms, particularly relation water resources hydrology applications. Four categories relevant applications are identified, namely, groundwater soil remediation, related low conductivity barrier, those cohesion, fluid flow studies artificially generated porous media. Moreover, not only identify existing hydrological but also strives propose novel promising can further expand utility domain. Along with investigation potential revolutionize hydrology, it imperative delve deeper into implications ensure sustainable ecologically responsible implementation.

Язык: Английский

Процитировано

23
Desiccation cracking remediation through enzyme induced calcite precipitation in fine-grained soils under wetting drying cycles DOI Creative Commons
Kaniz Roksana, Shaini Aluthgun Hewage,

Melissa Montalbo Lomboy

и другие.

Biogeotechnics, Год журнала: 2023, Номер 1(4), С. 100049 - 100049

Опубликована: Сен. 27, 2023

The effects of desiccation cracking in clay soils on geotechnical constructions are substantial. This study investigates the viability utilizing Enzyme-induced calcite precipitation (EICP), a bio inspired approach, as potential solution for addressing fine-grain soils. For EICP technique, crude soybean extract is employed purpose urea hydrolysis. Multiple fluid samples, including control sample, cementation containing 1 M urea, 0.675 CaCl2, and 4 g/L milk, along with various concentrations enzyme solutions (3 to 80 g/L), were tested study. To evaluate surface patterns, method involved constant monitoring photo recording using high-resolution camera aided by image processing software. results showed that improved from increased decreased intensity when was used. Cementation low 10 g/L) had similar crack remediation, suggesting modest influence. In contrast sample treated water, network remained unaltered this case. CaCO3 within void area kept place even thickness at increasing (30 g/L, 50 g/L). Wetting drying cycles found decrease ratio, width, length EICP-treated particularly under higher urease enzyme. Lower 3 have minimal impact remediation but effectively inhibit new formation. Furthermore, result calcium carbonate precipitates, forming soil crust roughness. aims enhance understanding methodology provide novel perspectives uses enhancement.

Язык: Английский

Процитировано

18
Advancing Slope Stability and Hydrological Solutions Through Biocementation: A Bibliometric Review DOI Creative Commons
Armstrong Ighodalo Omoregie, Tariq Ouahbi, Fock-Kui Kan

и другие.

Hydrology, Год журнала: 2025, Номер 12(1), С. 14 - 14

Опубликована: Янв. 13, 2025

Biocementation is an innovative and sustainable technique with wide-ranging applications in slope stabilization, watershed management, erosion control. Despite its potential, comprehensive evaluations of use hydrology geotechnical engineering are limited. This study addresses this gap through a bibliometric analysis 685 articles (2013–2023) from the Scopus database, employing VOSviewer RStudio to explore global research trends, key contributors, emerging themes. The reveals that China, United States, Japan leading contributors field, significant advancements microbial-induced (MICP) enzyme-induced calcium carbonate precipitation (EICP) techniques. These methods have demonstrated effectiveness improving soil strength, reducing erosion, enhancing hydrological properties such as infiltration, runoff control, water retention. Co-occurrence identifies interdisciplinary connections between geotechnics hydrology, highlighting clusters focused on biomineralization, resistance, durability. findings underscore biocementation’s pivotal role addressing sustainability challenges by providing environmentally friendly alternatives traditional stabilization not only maps current landscape but also offers valuable insights into practical implications biocementation for stability laying foundation future practices.

Язык: Английский

Процитировано

1