Article
Engineering, Geological
Shriful Islam, David J. Williams, Md Habibullah Bhuyan
Summary: This study used high constant rate of loading (CRL) and accelerated loading in a purpose-built, large, instrumented, stress-controlled slurry consolidometer to examine and compare the consolidation behavior of coal tailings, red mud, and gold tailings. The findings showed that the consolidation behavior of the tailings varied with the nature of the tailings and with the loading applied.
PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-GEOTECHNICAL ENGINEERING
(2021)
Article
Engineering, Geological
Masoomeh Khodabakhshi, Mahyar Arabani
Summary: This study investigates the application of waste plastic mixed with sand in geotechnical engineering through large-scale experiments. The results show that the addition of plastic waste can improve soil strength and compressibility, while decreasing the undrained elastic modulus.
PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-GEOTECHNICAL ENGINEERING
(2023)
Article
Engineering, Geological
Mahyar Arabani, Masoomeh Khodabakhshi
Summary: This study investigated the dynamic properties of sand mixed with crushed HDPE waste and found that increasing the percentage of HDPE led to a higher damping ratio and lower shear stiffness. Moreover, increasing the shear amplitude further decreased the dynamic shear stiffness and increased the damping ratio.
ENVIRONMENTAL GEOTECHNICS
(2023)
Article
Engineering, Geological
Suryaleen Rout, Suresh Prasad Singh
Summary: The abundance of pond ash and its resemblance to natural sand make it a potential substitute for sand in sand-bentonite (SB) liner material. This study investigates the compaction, strength, permeability, and shrinkage characteristics of pond ash-bentonite (PAB) and SB mixes at different water contents. The results show that the PAB mix exhibits higher unconfined compressive strength (UCS) and hydraulic conductivity compared to the SB mix, and the mechanical properties of the mixes are influenced by the shape of coarse fraction particles and microstructural arrangements.
PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-GEOTECHNICAL ENGINEERING
(2023)
Article
Engineering, Geological
Suryaleen Rout, Suresh Prasad Singh
Summary: The study investigated the compressibility and hydraulic conductivity of compacted pond ash-bentonite and sand-bentonite mixes through conventional consolidation tests. It was found that the compression index and coefficient of volume change increase with bentonite content, while the coefficient of consolidation decreases. Empirical models were proposed to predict these parameters based on basic soil parameters.
PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-GEOTECHNICAL ENGINEERING
(2021)
Article
Engineering, Geological
Giovani Jordi Bruschi, Carolina Pereira dos Santos, Suellen Tonatto Ferrazzo, Mariana Tonini de Araujo, Nilo Cesar Consoli
Summary: The importance of effective binders with low environmental impacts for sustainable engineering practices was highlighted in this study. The study evaluated parameters controlling loss of mass and stiffness degradation of 'green' stabilised bauxite tailings (BT) and introduced a porosity/binder index to rationalize dosage methodology. The study also compared the performance of alkali-activated binder with sugarcane bagasse ash and carbide lime with that of Portland cement, showing that lower porosity and higher cement content resulted in better mechanical performance.
PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-GEOTECHNICAL ENGINEERING
(2021)
Article
Engineering, Geological
Evan K. Paleologos, Brendan C. O'Kelly, Chao-Sheng Tang, Ken Cornell, Jorge Rodriguez-Chueca, Hossam Abuel-Naga, Eugeniusz Koda, Arvin Farid, Magdalena Daria Vaverkova, Konstantinos Kostarelos, Venkata Siva Naga Sai Goli, Sonia Guerra-Rodriguez, Eng-Choon Leong, Prathyusha Jayanthi, Bettadapura S. Shashank, Susmita Sharma, Sowmya Shreedhar, Arif Mohammad, Bhagwanjee Jha, Ganaraj Kuntikana, Myint Win Bo, Abdel-Mohsen O. Mohamed, Devendra N. Singh
Summary: The COVID-19 pandemic has highlighted risks to the environment and public health, with concerns about wastewater monitoring and outdoor disinfection practices. Developing countries need to enhance water resource protection and treatment technologies to improve resilience against pandemics.
ENVIRONMENTAL GEOTECHNICS
(2021)
Article
Business
Stefania Testa, Ciro Troise, Silvano Cincotti, Mark Anthony Camilleri
Summary: Electronics waste (e-waste) is rapidly increasing and requires attention in terms of management and control on crowdfunding platforms. This research explores the influence of e-waste management solutions and message framing on consumer behaviors in crowdfunding contexts. Findings suggest that sustainable projects focused on waste reduction and pollution prevention are attracting funds and interest from crowd investors, and well-crafted framing messages on environmental protection can increase crowdfunding success. This research contributes to environmental management and crowdfunding literature, with practical implications for sustainable entrepreneurs and other stakeholders.
BUSINESS STRATEGY AND THE ENVIRONMENT
(2023)
Article
Environmental Sciences
Uros Durlevic, Ivan Novkovic, Ivana Carevic, Dragana Valjarevic, Aleksa Marjanovic, Natalija Batocanin, Filip Krstic, Luka Stojanovic, Aleksandar Valjarevic
Summary: Adequate disposal of municipal solid waste is a complex environmental challenge in Serbia, particularly in urban areas. This research used geographic information systems to find a suitable landfill site location, utilizing multi-criteria analysis. The results provide a reference for safe waste disposal in the city of Kraljevo.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Geological
Florian M. Huber, Debora Leone, Michael Trumm, Luis R. Moreno, Ivars Neretnieks, Achim Wenka, Thorsten Schaefer
Summary: The study investigated the impact of variable fracture aperture on bentonite erosion behavior in a crystalline host rock environment for a generic repository site. Results showed that changing fracture geometry leads to heterogeneous flow velocity distributions, affecting erosion rates. The findings emphasize the importance of considering fracture aperture heterogeneity in the assessment of safety and evolution of high-level nuclear waste repositories.
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2021)
Article
Engineering, Environmental
Sanjeev Kumar, Davinder Singh
Summary: This study investigates the potential of Municipal Solid Waste Incinerator Bottom Ash (MSWI-BA) from a waste-to-energy conversion plant in Delhi for geoenvironmental applications. Cement-stabilized MSWI-BA specimens with varying cement content were examined, and the influence of pH and metal(loid)s concentrations during the standard curing period was assessed. The results showed that the addition of cement improved the strength and encapsulated heavy metals in the MSWI-BA, making it suitable for flexible road pavements and earth fills.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Environmental Sciences
V. C. Shruti, Gurusamy Kutralam-Muniasamy, Fermin Perez-Guevara, Priyadarsi D. Roy
Summary: Accurate characterization and data collection on household waste generation are crucial for promoting recycling and city management plans. Citizen science projects collaborating with waste collectors can overcome traditional data collection challenges and provide a viable solution for addressing household waste generation across different boundaries.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Review
Environmental Sciences
Vilasini Padignarepurakkil Pradhip, Soundara Balu, Bhuvaneshwari Subramanian
Summary: Energy-harnessing sources play a crucial role in a country's development, with thermal power being the primary source in India. However, the waste ash residues, especially pond ash, from thermal power plants pose environmental and geotechnical challenges, which require further research and clarification.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Green & Sustainable Science & Technology
Jiachao Ke, Kaihan Cai, Wenyi Yuan, Jinhui Li, Qingbin Song
Summary: This study provides a systematic review of the application of contingent valuation method (CVM) in solid waste management and disposal. The results indicate that personal information, individual attitudes, and perceived behavioral control are significant factors in residents' willingness to pay (WTP). The study also analyzes the spatial and temporal distribution of research and the correlation between WTP values and regions with different economic levels.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Environmental
H. M. Reijonen, W. R. Alexander, S. Norris
Summary: This study aims to develop a strategy for utilizing natural analogues in the UK's nuclear waste services' geological disposal facility program. The strategy emphasizes that natural analogue information and projects should be treated as part of knowledge management rather than a stagnant database. It is anticipated that integrating natural analogue information into the digital safety case can enhance transparency and facilitate the best utilization of the data.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Editorial Material
Engineering, Geological
David Reid, Andy Fourie, Juan Luis Ayala, Simon Dickinson, Felipe Ochoa-Cornejo, Riccardo Fanni, Juan Garfias, Antonio Viana Da Fonseca, Mason Ghafghazi, Carlos Ovalle, Michael Riemer, Amin Rismanchian, Roberto Olivera, Gonzalo Suazo, Luis Alberto Torres-Cruz
Article
Engineering, Civil
Mirko Kosic, Maxim Millen, Antonio Viana da Fonseca, Janko Logar, Matjaz Dolsek
Summary: The approach introduced in this study for estimating liquefaction probability based on seismic scenarios shows promise, especially when considering ground-motion randomness. It can effectively screen out potential liquefaction issues at specific sites.
JOURNAL OF EARTHQUAKE ENGINEERING
(2022)
Article
Construction & Building Technology
Mayssa Alves da Silva Sousa, Roberto Quental Coutinho, Laura Maria Goretti da Motta
Summary: This article evaluates the unsaturated behavior of fine-grained tropical soils and its suitability for use in transport infrastructure. The study conducted an extensive experimental campaign covering various tests. The results showed highly weathered soils with excellent resilient modulus, making them suitable for high traffic pavement. Regression equations were proposed to predict the resilient modulus based on parameters and stress values.
ROAD MATERIALS AND PAVEMENT DESIGN
(2023)
Article
Engineering, Geological
Giuseppe Astuto, Fausto Molina-Gomez, Emilio Bilotta, Antonio Viana da Fonseca, Alessandro Flora
Summary: This study validates a technique for measuring the degree of saturation in sandy soil deposits and investigates the relationship between P-wave velocity and saturation degree through laboratory tests.
Article
Engineering, Geological
Antonio Viana da Fonseca, Fausto Molina-Gomez, Cristiana Ferreira
Summary: This paper presents a comprehensive characterisation of liquefaction resistance of TP-Lisbon sand, a sandy soil collected from the historical center of Lisbon, Portugal. In situ tests provided profiles of safety against liquefaction, liquefaction potential index, and liquefaction severity number. Laboratory tests defined the cyclic resistance ratio for different densities and effective stresses of TP-Lisbon sand. The effects of principal stress inversion and rotation on liquefaction resistance were examined through advanced testing procedures.
BULLETIN OF EARTHQUAKE ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Rubens Alves, Sara Rios, Eduardo Fortunato, Antonio Viana da Fonseca, Bruno Guimaraes Delgado
Summary: The slags and rubber from end-of-life tires pose challenges to the steel and tire industry due to economic and environmental issues. However, these industrial by-products have potential as substitutes for natural raw materials in transportation infrastructures, provided that the mechanical performance meets the required specifications.
Article
Engineering, Geological
Antonio Viana da Fonseca, Maxim Millen, Julieth Quintero, Sinan Sargin, Sara Rios, Xavier Romao, Nuno Pereira, Fabrizio Panico, Sadik Oztoprak, M. Kubilay Kelesoglu
Summary: The damage caused by seismic shaking and liquefaction-induced permanent ground deformation are two inherently linked problems. To improve the estimates of the seismic performance of buildings on liquefiable soil, a new sub-structuring approach called the macro-mechanism approach is proposed. The proposed approach captures the extent of foundation deformation and provides more realistic estimates of building damage compared to full numerical models.
JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING
(2023)
Article
Engineering, Geological
Fausto Molina-Gomez, Antonio Viana da Fonseca, Cristiana Ferreira, Bernardo Caicedo
Summary: This study experimentally investigated the improvement of liquefaction resistance in sandy soils by inducing partial saturation. The results showed that P-wave velocity can reliably predict the liquefaction resistance under partially saturated conditions, while S-wave velocity cannot. The presence of occluded air bubbles in partially saturated soils, detectable by P-wave but not S-wave, was attributed to the suitableness of this approach.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2023)
Article
Engineering, Geological
Julieth Quintero, Rui Carrilho Gomes, Sara Rios, Cristiana Ferreira, Antonio Viana da Fonseca
Summary: This paper compares different methods to estimate earthquake-induced liquefaction damage using a well-documented pilot site. Numerical analyses and laboratory tests were used to validate these methods, and it was found that 1D numerical analysis can provide a good approximation of the 2D response.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2023)
Article
Engineering, Geological
Joao Vitor de Azambuja Carvalho, Alexia Cindy Wagner, Hugo Carlos Scheuermann Filho, Helder Mansur Chaves, Joao Paulo Sousa Silva, Bruno Guimaraes Delgado, Nilo Cesar Consoli
Summary: Dry stacking of tailings is an alternative to slurry disposal and can improve safety and reduce storage space. Adding small amounts of cement enhances the engineering properties of the material, allowing for construction of higher and more inclined piles. This study assesses the mechanical response of compacted iron ore tailings-cement mixes for dry stacking.
INDIAN GEOTECHNICAL JOURNAL
(2023)
Review
Engineering, Geological
Nelson Gomes Mica, Sara Rios, Antonio Viana da Fonseca, Eduardo Fortunato
Summary: The increasing demand for transport infrastructure development requires economically and environmentally viable alternatives to natural aggregates. Industrial by-products can effectively replace these materials, avoiding environmental impacts and providing a destination for the by-products. This study focuses on analyzing the chemical composition, physical and mechanical characteristics, swelling behavior, and leachate content of steelmaking slags for their suitability in the granular layers of transport infrastructures.
GEOTECHNICAL TESTING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Marisa Soares, Antonio Viana da Fonseca, Cristiana Ferreira, Sara Rios
Summary: A set of undrained compression triaxial tests was conducted on various types of cohesionless soils, demonstrating distinct state transitions from flow liquefaction to strain softening or hardening. The ratio of shear wave velocity (V-S(0)) to peak undrained deviatoric stress (q(peak)), V-S(0)/q(peak), was found to accurately define the boundaries between liquefaction and strain hardening for sands, as well as between strain softening and strain hardening for silty sands and silts. As this ratio depends on the tested material, the estimation of these boundaries can be achieved through the coefficient of uniformity (C-U) derived from a grain-size distribution test, which empirically correlates with critical state parameters.
APPLIED SCIENCES-BASEL
(2023)
