4.6 Article

Investigating microscale structural characteristics and resultant macroscale mechanical properties of loess exposed to alkaline and saline environments

Related references

Note: Only part of the references are listed.
Article Biotechnology & Applied Microbiology

The Effect of Calcium Source on Pb and Cu Remediation Using Enzyme-Induced Carbonate Precipitation

Lin Wang et al.

Summary: This study investigates the effect of calcium source on lead and copper removal through test tube experiments and numerical simulations. The findings suggest that enzyme-induced carbonate precipitation shows potential for lead and copper remediation.

FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY (2022)

Article Engineering, Environmental

Effects of bacterial inoculation and calcium source on microbial-induced carbonate precipitation for lead remediation

Zhong-Fei Xue et al.

Summary: This study explored the potential of using MICP technology for lead remediation under the influence of urease activity and calcium source. Monitoring ureolytic bacterial activity and environmental parameters provided insights into urea hydrolysis.

JOURNAL OF HAZARDOUS MATERIALS (2022)

Article Engineering, Environmental

Numerical simulation of the moisture migration of unsaturated clay embankments in southern China considering stress state

Junhui Zhang et al.

Summary: Experimental and simulation studies have shown that vertical stress has a significant effect on the moisture distribution in unsaturated clay embankments in southern China. When analyzing moisture distribution, a finite element model considering SDSWCCs should be selected. Existing clay embankments in southern China show an increase in moisture content, decrease in resilient modulus values, and a significant decrease in slope safety factor.

BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT (2021)

Article Soil Science

An investigation into the relationship between saturated permeability and microstructure of remolded loess: A case study from Chinese Loess Plateau

Panpan Xu et al.

Summary: The study on remolded loess reveals that the dry density of samples has an impact on permeability, categorizing them into three groups representing different permeability trends. The evolution of remolded loess structure mainly involves a transformation from large to small pores, weakening directional distribution while showing minimal changes in pore morphology. Additionally, the content and size of pores play a positive role in permeability, while the distribution and directional probability entropy of pores have a negative impact on permeability.

GEODERMA (2021)

Article Construction & Building Technology

Workability and mechanical properties of microwave heating for recovering high quality aggregate from concrete

Wei Wei et al.

Summary: This study investigated the heating process of mortar-aggregate under microwave irradiation through systematic experiments, exploring temperature field, material damage, and chemical variation. The research demonstrates that microwave irradiation effectively weakens the bonding between mortar and aggregate.

CONSTRUCTION AND BUILDING MATERIALS (2021)

Article Engineering, Geological

A comparative study of different machine learning algorithms in predicting EPB shield behaviour: a case study at the Xi'an metro, China

Xue-Dong Bai et al.

Summary: This study proposed a framework for predicting the behaviour of an EPB shield machine using machine learning, exploring the feasibility of four ML algorithms in a sandy soils tunneling case history. The results showed that the GBR model performed the best, while LR often had the worst performance.

ACTA GEOTECHNICA (2021)

Article Engineering, Civil

Evaluation of polyvinyl alcohol and high calcium fly ash based geopolymer for the improvement of soft Bangkok clay

Cherdsak Suksiripattanapong et al.

Summary: This research investigates the use of PVA and high calcium fly ash geopolymers to improve the strength of soft Bangkok clay in deep soil mixing applications. Results show that the addition of PVA can significantly enhance UCS values in the stabilized soil.

TRANSPORTATION GEOTECHNICS (2021)

Article Biotechnology & Applied Microbiology

Revealing the Enhancement and Degradation Mechanisms Affecting the Performance of Carbonate Precipitation in EICP Process

Wenle Hu et al.

Summary: This study compares the ordinary EICP process with the modified EICP process, finding that the modified EICP process subjected to higher MgCl2 concentrations performs the best, with the mechanism of carbonate precipitation enhancement interpreted through elevating urease enzyme activity by introducing magnesium ions. Different degradation phenomena of carbonate precipitation occur when subjected to higher NH4Cl and CaCl2 concentrations, highlighting the potential use of EICP technology for the protection of heritage buildings in NW China.

FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY (2021)

Article Construction & Building Technology

Pipejacking clogging detection in soft alluvial deposits using machine learning algorithms

Xue-Dong Bai et al.

Summary: The study investigates the potential of using AI techniques to detect clogging tendencies during slurry-supported pipejacking in tunnels, which can have significant impacts on project performance.

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY (2021)

Article Geosciences, Multidisciplinary

Effects of chemical contamination on microscale structural characteristics of intact loess and resultant macroscale mechanical properties

Wenle Hu et al.

Summary: The study reveals that chemical contaminants can cause deterioration in the microscale structural characteristics of loess, which in turn impacts the mechanical properties of the soil. This has significant implications for contaminated land reclamation in NW China.

CATENA (2021)

Article Construction & Building Technology

Fracture behavior of concrete coarse aggregates under microwave irradiation influenced by mineral components

Yuan Yuan et al.

Summary: This study found that ilmenite heated more rapidly during microwave heating tests, resulting in larger temperature gradients and more severe damage in basalt due to its higher ilmenite content, leading to more severe fractures occurring at higher power levels.

CONSTRUCTION AND BUILDING MATERIALS (2021)

Article Engineering, Civil

Improvement of the Shearing Behaviour of Loess Using Recycled Straw Fiber Reinforcement

Zhong-Fei Xue et al.

Summary: The study found that recycled straw fibers enhance the shear behavior of loess and identified the mechanism behind it through controlled tests. The potential of using recycled straw fiber-reinforced loess to protect the fragile loess environment in northwest China is highlighted in the test results.

KSCE JOURNAL OF CIVIL ENGINEERING (2021)

Article Engineering, Geological

Interactions of landslide deposit with terrace sediments: Perspectives from velocity of deposit movement and apparent friction angle

Zhao Duan et al.

Summary: The study explores the interactions of landslide deposit and terrace sediments in the Loess Plateau, using sandbox experiments and discrete element modeling to simulate changes in geomorphology induced by these interactions. The results provide valuable insights for future countermeasures against loess flowslides in the study area.

ENGINEERING GEOLOGY (2021)

Review Engineering, Environmental

Experimental study on air permeability and microscopic mechanism of intact and remolded Malan loess, Loess Plateau, China

Jinyang Liu et al.

BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT (2020)

Article Thermodynamics

Temperature-driven migration of heavy metal Pb2+ along with moisture movement in unsaturated soils

Bing Bai et al.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2020)

Article Geosciences, Multidisciplinary

Characterization and evolution of three-dimensional microstructure of Malan loess

Ya-ni Wei et al.

CATENA (2020)

Article Geosciences, Multidisciplinary

Microstructural evolution of loess soils from the Loess Plateau of China

Ping Li et al.

CATENA (2019)

Article Engineering, Environmental

Investigation into the triggering mechanism of loess landslides in the south Jingyang platform, Shaanxi province

Zhao Duan et al.

BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT (2019)

Article Engineering, Geological

Collapse behavior and microstructural alteration of remolded loess under graded wetting tests

Xianxian Shao et al.

ENGINEERING GEOLOGY (2018)

Article Engineering, Geological

Effect of diesel-contamination on geotechnical properties of illite soil

Hossein Safehian et al.

ENGINEERING GEOLOGY (2018)

Article Environmental Sciences

Effects of lime treatment on the hydraulic conductivity and microstructure of loess

Yanyan Gao et al.

ENVIRONMENTAL EARTH SCIENCES (2018)

Article Engineering, Geological

Case Study of a Collapse Investigation of Loess Sites Covered by Very Thick Loess-Paleosol Interbedded Strata

Long-Sheng Deng et al.

INTERNATIONAL JOURNAL OF GEOMECHANICS (2018)

Article Engineering, Geological

Soil Conditioning for EPB Shield Tunneling in Argillaceous Siltstone with High Content of Clay Minerals: Case Study

Xinyu Ye et al.

INTERNATIONAL JOURNAL OF GEOMECHANICS (2017)

Article Chemistry, Physical

Can hydrocarbon contamination influence clay soil grain size composition?

Jerzy Trzchinski et al.

APPLIED CLAY SCIENCE (2015)

Article Geosciences, Multidisciplinary

Loessification and hydroconsolidation: There is a connection

Ian J. Smalley et al.

CATENA (2014)

Article Geosciences, Multidisciplinary

China: Materials for a loess landscape

Ian Smalley et al.

CATENA (2014)

Article Engineering, Geological

Consolidation behavior of two fine-grained soils contaminated by glycerol and ethanol

A. R. Estabragh et al.

ENGINEERING GEOLOGY (2014)

Article Engineering, Geological

Coupled thermo-hydro-mechanical-chemical behaviour of cemented paste backfill in column experiments

Alireza Ghirian et al.

ENGINEERING GEOLOGY (2014)

Article Engineering, Geological

Soil treatment with organic non-traditional additives for the improvement of earthworks

Gaetan Blanck et al.

ACTA GEOTECHNICA (2014)

Article Engineering, Geological

Effects of pore water chemical composition on the hydro-mechanical behavior of natural stiff clays

X. P. Nguyen et al.

ENGINEERING GEOLOGY (2013)

Article Engineering, Geological

Stress-strain characteristics of two natural soils subjected to long-term acidic contamination

Ivan Gratcheva et al.

SOILS AND FOUNDATIONS (2013)

Article Environmental Sciences

Compressibility of natural soils subjected to long-term acidic contamination

Ivan Gratchev et al.

ENVIRONMENTAL EARTH SCIENCES (2011)