Related references
Note: Only part of the references are listed.
Review
Engineering, Civil
Tong Yu et al.
Summary: This article reviews the progress of protocol optimization in MICP technology, analyzes and summarizes the impact of various factors on the process, and provides up-to-date guidance on parameter selection, which is inspiring for further research.
EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
(2022)
Article
Engineering, Civil
Piltan Tabatabaie Shourijeh et al.
Summary: This study investigates the effectiveness of additives/stabilizers in modifying soil erosion characteristics. The results show that hydrated lime and calcium bentonite can reduce soil erodibility, while sodium bentonite does not improve erosion resistance.
EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
(2022)
Article
Engineering, Ocean
Xiaoniu Yu et al.
Summary: Research has shown that the use of seawater-based microbial-induced carbonate precipitation technology can be applied in the construction of ocean islands and reefs. Different pH values of seawater-based UPB can induce calcium carbonate deposition at different times, with the strength and carbonate content of sand blocks cemented using the two-phase method being greater than that of the one-phase method.
APPLIED OCEAN RESEARCH
(2022)
Review
Construction & Building Technology
Chunhua Feng et al.
Summary: With the increasing consumption of construction resources and the pressure caused by construction waste on the environment, the use of recycled aggregate (RA) has become a hot topic worldwide. This paper summarizes the research results of RA enhancement technologies, discusses the problems and proposes potential solutions. The study shows that different enhancement technologies can improve the properties of RA, but further development is needed for its engineering application.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Environmental Sciences
Carla Comadran-Casas et al.
Summary: The study found that cow urine can be a suitable nutrient source for MICP, with urea concentration and stability in fresh and sterilised cow urine suitable for application. The soil response to cow urine treatments was similar to the chemical-based solution, and increasing solution pH resulted in faster activation of ureolytic microorganisms.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Chemistry, Multidisciplinary
Ping Hu et al.
Summary: This study investigates the feasibility of using cement/quicklime as an additive to improve weathered argillaceous slate (WAS). Laboratory tests and dynamic analysis were conducted to evaluate the mineral components and physical, mechanical, and hydraulic characteristics of the cement/quicklime-modified WAS. The results suggest that 5% cement-modified WAS is recommended for filling subgrades of high-speed railways.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Multidisciplinary
Xinpei Yu et al.
Summary: This study investigated the soil water characteristic curve and microstructure evolution of microbially improved unsaturated expansive soil in Nanning, Guangxi, using the filter paper method and scanning electron microscope imaging (SEM). The study confirmed the influence of different cement content on the soil water characteristic curve of the improved soil, based on the Fredlung & Xing model. Analysis of SEM test results revealed the mechanism of influence of the MICP method on the engineering characteristics of the improved soil. The results showed that increasing cement content gradually increased the saturated water content and residual water content of the improved soil, while also improving water stability and decreasing air inlet value. The microstructure of soil particles changed and the connection between particles was enhanced, ultimately improving the strength and water stability of the expansive soil.
APPLIED SCIENCES-BASEL
(2022)
Article
Engineering, Civil
Hyobum Lee et al.
Summary: An appropriate application of a soil conditioning strategy during an earth pressure balance (EPB) shield operation is crucial for reducing downtime and improving the hydro-mechanical properties of the muck. This study aims to simulate EPB tunnelling and investigate the effects of ground and foam injection conditions through laboratory-scale excavation tests. The results show that the suggested laboratory excavation test can be used to qualitatively evaluate the effects of basic soil properties and foam injection conditions on EPB shield tunnelling.
TRANSPORTATION GEOTECHNICS
(2022)
Article
Biotechnology & Applied Microbiology
Xiaorong Wang et al.
Summary: Soil cementation based on microbially induced calcite precipitation (MICP) technology is a hot research topic in biogeotechnical engineering. The brittleness of MICP-cemented soil, caused by only calcium bonds among particles, limits the application of MICP technology. However, MICP-bonding technology can overcome this issue by increasing the plastic bond among matrix particles. In this study, a high-efficiency strain, named XR1#, was isolated and identified as Bacillus oceanicus. The strain has the ability to induce mineralization and produce polysaccharides simultaneously. By combining calcium carbonate crystal filling and extracellular polysaccharide bonding, the strength and ductility of the sand column were improved, reducing the brittleness of traditional MICP technology. Additionally, the metabolites of the XR1# bacteria could be artificially regulated by studying the effect of nutrient elements. Microbial-cemented fine sand columns using XR1# showed advantages over traditional Sporosarcina pasteurii, including high production and uniform distribution of calcium carbonate, high strength, and good ductility. This study provides a new strain and research idea for MICP-bonding technology to reduce brittleness.
JOURNAL OF BIOTECHNOLOGY
(2022)
Article
Engineering, Geological
Anant Aishwarya Dubey et al.
Summary: The increased occurrence of extreme weather events has raised global concerns about the conservation of riverbanks and coastlines. This study explores the erosion characteristics of soil treated with microbially induced calcite precipitation (MICP) and investigates the effectiveness of biopolymer composite treatment in improving soil resilience against erosion.
Article
Chemistry, Physical
Md Al Imran et al.
Summary: This study investigated the durability of jute-reinforced MICP-treated samples under exposure to DW and ASW, showing that the addition of fiber (jute) improved the durability by more than 50%. The wet-dry cyclic process had adverse effects on the mechanical and physical characteristics of the samples in both environments, with calcium carbonate breakdown and bonding effects contributing to deterioration.
Article
Chemistry, Physical
Xuegui Zheng et al.
Summary: The mechanical properties of undisturbed root-soil composites were investigated using direct shear tests with different cementation concentrations achieved through microbially induced carbonate precipitation (MICP). The results revealed that MICP significantly strengthened the undisturbed root-soil composite, with a maximum increase in shear strength of about 160% after grouting. The shear strength of the composites increased with an increase in calcium chloride concentration, with the highest increase observed at a concentration of 0.75M. Calcium carbonate formed by MICP treatment exhibited cementitious properties, resulting in a 400% increase in cohesion and a 120% increase in internal friction angle of the root-soil composite.
Article
Oceanography
He Jia et al.
Summary: This study investigates the use of enzyme-induced carbonate precipitation (EICP) method for controlling erosion of earthen structures under surface water runoff. The results show that EICP treatment significantly improves the resistance of sandy soils against erosion and reduces the level of damages caused by runoff. This suggests the potential of the EICP method for erosion control of earthen structures.
JOURNAL OF OCEAN UNIVERSITY OF CHINA
(2022)
Article
Materials Science, Multidisciplinary
Huanyu Su et al.
Summary: An experimental study on one-dimensional consolidation and scanning electron microscope imaging of expansive soil improved by MICP method was conducted, revealing the influence mechanism of cementation and filling effect of calcium carbonate precipitation on the microstructure of improved soil samples. A porosity calculation model and a fractal calculation theory of consolidation deformation of the improved expansive soil were established based on fractal theory and damage theory, with the rationality of the calculation theory verified through comparison with tested results. These research results lay a theoretical foundation for further research, providing a new train of thought for quantitative analysis on the characteristics of improved expansive soil.
FRONTIERS IN MATERIALS
(2022)
Article
Geosciences, Multidisciplinary
Qianwen Ouyang et al.
Summary: This study investigates the influence of microbial content on the engineering properties of expansive soil improved by microbially induced calcium carbonate (MICP) method. The results show that increasing microbial content significantly improves the dry density and shear strength of the improved soil, while reducing its hydrophilicity and expansibility. Scanning electron microscope observations reveal that microbially induced calcite precipitation cements soil particles and fills soil pores, thereby improving the microstructure characteristics of the soil.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Engineering, Geological
Kejun Wen et al.
Summary: Microbially induced calcite precipitation (MICP) using ureolytic bacteria is investigated to enhance soil engineering properties. The study uses changes in electrical conductivity (EC) and pH values as indicators to monitor and maintain consistent MICP treatment, showing that optimal EC and pH ranges at 60 min can achieve consistent unconfined compression strength (UCS) performance of MICP-treated specimens.
ENVIRONMENTAL GEOTECHNICS
(2021)
Article
Materials Science, Characterization & Testing
Kai Yao et al.
Summary: This study investigates the settlement of the reinforced area for soft foundations with low improvement ratio soil-cement columns through model tests, and modifies the traditional formula to better account for the effects of column length and skin friction between the column and surrounding soils.
JOURNAL OF TESTING AND EVALUATION
(2021)
Article
Agronomy
Amrakh Mamedov et al.
Summary: The study found that using PAM solution prepared with poor-quality water can significantly improve soil structure stability, especially in smectite soils. The addition of PAM changed the shape of the soil water retention curve and increased soil structure stability.
ARCHIVES OF AGRONOMY AND SOIL SCIENCE
(2021)
Article
Engineering, Geological
Kai-Wei Liu et al.
Summary: The study investigated novel bio-mediated methods (MICP and EICP) for mitigating sand dune erosion under wave attack. Both methods were effective at mild-to-moderate conditions but less effective under adverse conditions due to different spatial distribution patterns of calcite precipitation.
Article
Construction & Building Technology
Ting Lu et al.
Summary: The study introduces a novel mixing method for reinforcing tailings using microbially induced calcite precipitation (MICP), which shows better reinforcement effect compared to traditional grouting methods. The method improves the uniformity of fine-grained tailings and could be beneficial for microbial geotechnical technologies.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Construction & Building Technology
Jirapa Intarasoontron et al.
Summary: The study compared the crack healing performances of self-healing concretes using cell/nutrient dropping and immobilization methods. Results showed that the cell dropping method was more effective in closing cracks and recovering ultimate load after repair, while specimens mixed with microencapsulated bacterial spores exhibited lower ultimate loads than control specimens.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Biotechnology & Applied Microbiology
F. Su et al.
Summary: This study demonstrates the feasibility of using microbial consortium for MICP, identifying functional micro-organisms and explaining the mechanism. The proposed method for soil media has advantages of low cost, low environmental impact, treatment uniformity, and less limitations from natural soils.
JOURNAL OF APPLIED MICROBIOLOGY
(2021)
Article
Environmental Sciences
Xiao-jun Liu et al.
Summary: This study investigates the application of MICP technology in enhancing the engineering properties of loess, demonstrating significant improvements can be achieved. Under optimal conditions, such as a reaction temperature of 30 degrees C and a pH of 9, higher inoculation ratios can lead to increased enzyme activity and monomer enzyme activity, resulting in a nearly fourfold increase in unconfined compressive strength of loess samples treated with MICP. Additionally, MICP has a substantial impact on surface porosity of loess samples, followed by pore fractal dimension and probability entropy, while exerting minimal influence on pore average form factor.
JOURNAL OF MOUNTAIN SCIENCE
(2021)
Article
Engineering, Geological
Yao-Jia Cheng et al.
Summary: China faces severe soil erosion disasters, especially in the Loess Plateau region. A new strategy using MICP technology for loess surface erosion control was proposed, showing the ability to significantly mitigate rainfall erosion and enhance soil structure strength. The MICP-induced double layer structure, with an upper hard crust layer and lower weak cemented layer, plays a key role in erosion resistance, and treatment with 1.0 M cementation solution is optimal for improving soil properties and reducing erosion.
ENGINEERING GEOLOGY
(2021)
Article
Engineering, Geological
Yang Xiao et al.
Summary: A temperature-controlled one-phase MICP method was proposed to achieve uniform distribution, higher strength, and improved engineering properties of soil, demonstrating advantages over the normal two-phase MICP method in a series of experiments.
Article
Environmental Sciences
Junbong Jang et al.
Summary: Coastal areas often have weak soft ground unsuitable for construction. Soil improvement techniques, such as using industrial waste binders, can enhance strength and reduce costs. Optimal mixtures can increase compressive strength in soft ground for coastal construction.
JOURNAL OF COASTAL RESEARCH
(2021)
Article
Engineering, Geological
Yang Xiao et al.
Summary: The study found that biocementation greatly improves the thermal conductivity of sand specimens, with the enhancement effect being influenced by gradation, void ratio, and calcium carbonate content, especially for sands with an initial degree of saturation between 0.82 and 0.85. An empirical equation was established to predict the thermal conductivity of MICP-treated silica sand with different variables, which may be beneficial for designing energy piles in biocemented sand layers.
JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING
(2021)
Article
Engineering, Geological
Brina M. Montoya et al.
Summary: Microbially induced carbonate precipitation (MICP) is an innovative method to strengthen loose porous media. This study investigates the distribution pattern of cementation and quantifies the improved material properties through experimental study, identifying the level of cementation induced in the treated sand and its relationship to shear wave velocity and cone tip resistance. The results provide insights into the general cementation pattern of MICP and how it is influenced by induced seepage velocity and density.
JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING
(2021)
Article
Engineering, Geological
Xiaohao Sun et al.
Summary: Microbially induced calcite precipitation (MICP) has been found to significantly improve the liquefaction resistance of loess soil samples by cementing soil particles with calcium carbonate (CaCO3) and filling voids. Different treatment conditions lead to varying changes in permeability coefficient of samples, and increasing treatment cycles enhances liquefaction resistance. The addition of bacterial suspension and cementation solution together or separately also affects the liquefaction mitigation effects. Increasing total solution volume per treatment cycle improves liquefaction resistance, and the relationship between CaCO3 content and liquefaction resistance parameters can be established for MICP-solidified loess soil.
JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Jianwei Yue et al.
Summary: The study demonstrates that the improved MICP technology can significantly enhance the mechanical behavior of treated silt in the Yellow River Basin, with the potential to achieve better treatment effects by optimizing the ratio and concentration of cementitious liquid and bacterial liquid.
ADVANCES IN MATERIALS SCIENCE AND ENGINEERING
(2021)
Article
Engineering, Environmental
Xiaohao Sun et al.
Summary: Bio-cementation using MICP was applied to solidify loess soils, with a focus on durability under freeze-thaw cycles. Results showed decreased permeability coefficients after solidification, with better aggregate effect and freeze-thaw resistance at a density of 1.5 g/cm(3).
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2021)
Article
Engineering, Civil
Qingsheng Chen et al.
Summary: This study proposes the use of Polyurethane Foam Adhesive (PFA) to improve the engineering properties of calcareous sands, instead of traditional stabilizers. Through triaxial shear tests and SEM tests, the effectiveness and microstructural mechanisms of using PFA are examined, providing insights into improving the resilience of calcareous sand.
TRANSPORTATION GEOTECHNICS
(2021)
Review
Chemistry, Physical
Dawood Muhammad Iqbal et al.
Summary: Bio-cementation is an environmentally friendly solution for reducing carbon emissions and slowing global warming. The mechanism of microbiologically induced calcium carbonate precipitation has become a recent trend in construction engineering research.
Article
Engineering, Environmental
Fuchen Teng et al.
Summary: The study introduced an injection method for microbial-induced calcite precipitation (MICP) in the pore space of clay to enhance soil strength, finding that injecting equal volumes of bacterial solution and cementation solution significantly increased soil strength.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2021)
Article
Engineering, Environmental
Zhifeng Tian et al.
Summary: This study investigated the impact of microbially induced carbonate precipitation (MICP) on mitigating uneven settlement in electro-osmotic consolidation of soft soil. Results showed that the addition of MICP solution significantly reduced the coefficient of settlement variation, leading to a more uniform soil reinforcement during the consolidation process.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2021)
Article
Engineering, Environmental
Yang Zhao et al.
Summary: The study utilized bentonite-assisted MICP to improve coarse soil properties, resulting in enhanced mechanical behaviors and reduced permeability.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2021)
Review
Engineering, Multidisciplinary
Qian ChunXiang et al.
Summary: The research introduces the progress of MICP technology in concrete crack repair, including the application of different strains, comparison of immobilization methods, and summary of application experience.
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2021)
Review
Chemistry, Multidisciplinary
Wenbin Lin et al.
Summary: MICP through denitrification has the potential to replace conventional petrochemical-based, labour intensive techniques in the construction industry, contributing to sustainable development and carbon emission reduction.
APPLIED SCIENCES-BASEL
(2021)
Article
Microbiology
Olja Sovljanski et al.
Summary: MICP is a widely used bio-based solution in various engineering fields, and this study conducted a comprehensive analysis of soil bacteria, quickly screening out 5 bacterial strains with MICP potential through Standard Score Analysis and studying and characterizing their behavior.
Article
Construction & Building Technology
Miguel Valencia-Galindo et al.
Summary: MICP is a bio-inspired solution where bacteria metabolize urea to precipitate carbonate, acting as a bio-cement to bond soil particles. While lab-scale treatments showed a decrease in swelling potential and an increase in strength and stiffness, no significant effects were found in field tests.
Article
Green & Sustainable Science & Technology
Shengquan Zhou et al.
Summary: The addition of cationic polyacrylamide can significantly improve the physical and mechanical properties of the soil, including liquid limit, plasticity index, swelling performance, and compressive strength, as well as enhance the spatial stability of the soil.
JOURNAL OF RENEWABLE MATERIALS
(2021)
Article
Engineering, Biomedical
Hamed Behzadipour et al.
BIOINSPIRED BIOMIMETIC AND NANOBIOMATERIALS
(2020)
Article
Engineering, Geological
Toshiro Hata et al.
ENVIRONMENTAL GEOTECHNICS
(2020)
Review
Environmental Sciences
Chao-Sheng Tang et al.
ENVIRONMENTAL EARTH SCIENCES
(2020)
Article
Engineering, Environmental
Shima Atashgahi et al.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2020)
Article
Environmental Sciences
Xiangwei Fang et al.
GEOMICROBIOLOGY JOURNAL
(2020)
Article
Construction & Building Technology
Xiaohao Sun et al.
JOURNAL OF ADVANCED CONCRETE TECHNOLOGY
(2020)
Article
Construction & Building Technology
Yang Zhao et al.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2020)
Article
Water Resources
Xuerui Wang et al.
ADVANCES IN WATER RESOURCES
(2020)
Article
Microbiology
J. A. Ohan et al.
FRONTIERS IN MICROBIOLOGY
(2020)
Article
Engineering, Geological
Manita Das et al.
INTERNATIONAL JOURNAL OF GEOMECHANICS
(2020)
Article
Geosciences, Multidisciplinary
Shuquan Peng et al.
FRONTIERS IN EARTH SCIENCE
(2020)
Article
Multidisciplinary Sciences
Junzhen Mi et al.
SCIENTIFIC REPORTS
(2020)
Article
Construction & Building Technology
Xuejie Deng et al.
CONSTRUCTION AND BUILDING MATERIALS
(2020)
Review
Chemistry, Physical
Sing Chuong Chuo et al.
Article
Materials Science, Characterization & Testing
Dongxing Wang et al.
JOURNAL OF TESTING AND EVALUATION
(2019)
Article
Construction & Building Technology
Sonja Haas et al.
ROAD MATERIALS AND PAVEMENT DESIGN
(2019)
Article
Engineering, Geological
Atefeh Zamani et al.
CANADIAN GEOTECHNICAL JOURNAL
(2019)
Article
Ecology
Sina Saneiyan et al.
ECOLOGICAL ENGINEERING
(2019)
Article
Engineering, Geological
Atefeh Zamani et al.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2019)
Review
Materials Science, Multidisciplinary
Maria Jose Castro-Alonso et al.
FRONTIERS IN MATERIALS
(2019)
Article
Engineering, Geological
Yufeng Gao et al.
SOILS AND FOUNDATIONS
(2019)
Article
Construction & Building Technology
Leena Chaurasia et al.
CONSTRUCTION AND BUILDING MATERIALS
(2019)
Article
Construction & Building Technology
Shihui Liu et al.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2019)
Article
Engineering, Geological
Xuerui Gai et al.
Article
Computer Science, Interdisciplinary Applications
H. Kurugodu et al.
ADVANCES IN ENGINEERING SOFTWARE
(2018)
Article
Engineering, Geological
A. Zamani et al.
JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING
(2018)
Article
Construction & Building Technology
Changming Bu et al.
MATERIALS AND STRUCTURES
(2018)
Article
Engineering, Geological
Amin Chegenizadeh et al.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2018)
Article
Chemistry, Multidisciplinary
Thiloththama H. K. Nawarathna et al.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2018)
Article
Environmental Sciences
Zhang Chong-lei et al.
JOURNAL OF MOUNTAIN SCIENCE
(2018)
Review
Construction & Building Technology
Yousef Al-Salloum et al.
CONSTRUCTION AND BUILDING MATERIALS
(2017)
Article
Engineering, Geological
J. Chu et al.
Article
Engineering, Geological
J. T. Dejong et al.
Article
Environmental Sciences
Jian Chu et al.
GEOMICROBIOLOGY JOURNAL
(2012)
