Article
Construction & Building Technology
Reza Alijani Shirvani, Reza Noorzad
Summary: This study evaluates the effect of sludge ash of wood and paper mill (SAWP) and polypropylene fibers on the mechanical properties of fat clay. The addition of SAWP increases the strength and durability of the stabilized specimens, while the fibers prevent crack development and spreading, resulting in a durable and sustainable composite material.
ROAD MATERIALS AND PAVEMENT DESIGN
(2023)
Article
Construction & Building Technology
Prabhat Vashistha, S. K. Singh, Vivek Kumar
Summary: The study focused on the calcination of lime sludge at different temperatures to produce a binder for concrete. By replacing a portion of cement with the calcined lime sludge, the prepared binder showed similar compressive strength to control concrete, with lower production cost and reduced greenhouse gas emissions.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Maroua Zerzouri, Saliha Alehyen, Rabah Hamzaoui, Layella Ziyani, Abdellatif Loukili
Summary: This study found that fly ash-based geopolymer samples maintained a good surface appearance after high temperature exposure, but showed micro-cracks and a porous structure after exposure to acid, leading to a decrease in compressive strength of about 33.33%.
Article
Environmental Sciences
Zhi-Hai He, Xu-Dong Han, Jia-xu Jin, Jiang-shan Li, Wei Tang, Jin-yan Shi
Summary: For eutrophic water bodies, potassium permanganate is an effective pre-oxidant to remove algae and its residue in water treatment sludge. Recycling water treatment sludge in concrete is an environmentally friendly and high-value utilization measure. However, little research has been done on the effect of manganese-rich drinking water sludge ash (DWSA) on concrete. The effect of water-binder ratio (w/b) on strength, shrinkage and microstructural characteristics of concrete containing DWSA was investigated, and the structural behavior was explained from a nanoscale perspective. The results show that recycling 10 % DWSA in concrete improved the strength and shrinkage resistance of the samples. Reducing the w/b effectively increased the strength of DWSA-modified concrete and reduced the shrinkage deformation. Meanwhile, reducing the w/b also reduced the interfacial transition zone width of DWSA-modified concrete. Recycling DWSA in concrete effectively reduced the total carbon footprint and cost of the mixture. The combined application of reducing the w/ b and incorporating DWSA effectively improved the economic and environmental benefits of concrete material. For the concrete modified with 10 % DWSA (w/b = 0.3), its cost and carbon emissions are reduced by 14 %-21 % and 19 %-25 % compared with the reference sample, respectively. Overall, this study reveals the action mechanism of DWSA in cement system at different w/b from nanoscale perspective, and gives a new insight on determining the optimal w/b in full-scale application of DWSA concrete.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Green & Sustainable Science & Technology
Balaji Govindan, Vidhya Kumarasamy
Summary: Fly ash-lime-gypsum bricks are being affected by the scarcity of fly ash and lime, so the study explores the use of incinerated paper mill sludge ash as a supplement. The bricks were tested for various properties and it was found that incorporating incinerated paper mill sludge ash at specific replacement levels satisfied the requirements. By incorporating this ash into bricks, the brick industry can produce sustainable bricks.
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2023)
Article
Green & Sustainable Science & Technology
Yan Xia, Minghao Liu, Yading Zhao, Xiaobing Ma
Summary: This study investigates the effect of Na2SO4 on the hydration and microstructure of Portland cement blended with a high dosage of sewage sludge ash (SSA). The addition of Na2SO4 significantly improves the compressive strength of the blended systems and enhances the microstructure. Na2SO4 also promotes the formation and growth of AFt crystals in the blended systems.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Green & Sustainable Science & Technology
J. Gonzalez, P. Sargent, C. Ennis
Summary: This study evaluates the feasibility of using sewage treatment sludge biochar as a low-carbon 100% waste-based alternative to traditional alkali agents, and found that binder mixtures with higher biochar concentrations achieved greater strengths. The best performing mixture had a biochar-slag ratio of 0.67:0.33 and dosage of 10%, which produced strengths up to 1243 kPa.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Chemistry, Physical
Tomasz Kalak, Patrycja Szypura, Ryszard Cierpiszewski, Malgorzata Ulewicz
Summary: The sustainable development of construction materials is crucial in the current global trends. Reusing waste materials in the building industry has positive environmental effects. This study assessed the relationship between the components and parameters of concrete and its compressive strength properties. Different concrete mixes were designed with varying contents of sand, gravel, Portland cement, water, superplasticizer, air-entraining admixture, and fly ash from sewage sludge. The addition of sewage sludge fly ash did not negatively affect the strength of the concrete samples, providing economic and environmental benefits.
Article
Materials Science, Paper & Wood
Thabisile Brightwell Jele, Bruce Sithole, Prabashni Lekha, Jerome Andrew
Summary: Three different pulp and paper mill sludge samples from South African mills were characterized to determine their suitability for various beneficiation pathways. The characteristics of the sludge varied depending on the pulping technique, raw material, and effluent treatment used. From the analysis, it was found that different beneficiation pathways were more suitable for each type of sludge based on their specific characteristics.
Article
Construction & Building Technology
Chun-Ran Wu, Bao-Jian Zhan, Zhi-Qiang Hong, Shi-Cai Cui, Peng Cui, Shi-Cong Kou
Summary: The hydration behavior of circulating fluidized bed fly ash (CFBFA) as a cementitious binder in a CFBFA-lime system was investigated. It was found that the hydration behavior of the mixtures changed as the lime content increased, and the hydration reaction of the mixtures could continue after Ca(OH)2 was depleted.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Review
Green & Sustainable Science & Technology
Chaofeng Liang, Xinqian Le, Weijiong Fang, Jianming Zhao, Liuji Fang, Shaodan Hou
Summary: The production of sewage sludge has been increasing in China, and traditional treatment methods cannot meet sustainability requirements. Previous studies have shown that sewage sludge ash (SSA) can be used to replace cement in mortar or concrete. However, the incorporation of SSA negatively affects the workability, setting time, water absorption, and mechanical properties of mortar. Improvements can be made by increasing grinding time or adding admixtures.
Article
Construction & Building Technology
Maliki Otieboame Djandjieme, Kimitoshi Hayano, Hiromoto Yamauchi, Zain Maqsood
Summary: The aim of this study is to investigate the potential of using a paper sludge ash-based stabilizer (PSAS) to improve the properties of sand proposed to be used as backfill material around underground pipes. The test results show that the PSAS-treated sand has lower expansion potential and compressive strength compared to the OPC-treated sand, making it easier to reexcavate.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
V. Bocullo, L. Vitola, D. Vaiciukyniene, A. Kantautas, D. Bajare
Summary: The SiO2/Na2O ratio has a significant impact on the compressive strength of alkali activated binders (AAB). Too low ratio leads to rapid sodium carbonation, while too high ratio reduces the sodium content necessary for alkali activation, resulting in lower compressive strength. Furthermore, a higher SiO2/Na2O ratio also decreases the crystallinity of hydroxy-sodalite.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Construction & Building Technology
Mubarak Usman Kankia, Lavania Baloo, Bashar S. Mohammed, Suhaimi B. Hassan, Sani Haruna, Nasiru Danlami, Effa Affiana Ishak, Wan Nurliyana Samahani
Summary: This study investigates the use of petroleum sludge ash and fly ash to produce geopolymer mortar, finding that geopolymer mortar made with 10% petroleum sludge ash replacement had the highest compressive strength and met permissible levels of targeted heavy metals according to USEPA standards.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Biotechnology & Applied Microbiology
H. Zmamou, N. Leblanc, D. Levacher, J. Kubiak
Summary: The study demonstrates that waste paper sludge ash blended with cement in a certain ratio exhibits strong compressive strength, suitable for construction materials; meanwhile, the addition of a small amount of calcined kaolin can enhance the strength of the mixture, making it suitable for the production of bricks or blocks.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Environmental Sciences
Z. Abdollahnejad, T. Luukkonen, M. Mastali, C. Giosue, O. Favoni, M. L. Ruello, P. Kinnunen, M. Illikainen
WASTE AND BIOMASS VALORIZATION
(2020)
Article
Materials Science, Multidisciplinary
Mattia Pierpaoli, Aneta Lewkowicz, Michal Rycewi'cz, Karol Szczodrowski, Maria Letizia Ruello, Robert Bogdanowicz
Article
Soil Science
Rogerio Borguete Alves Rafael, Maria Luisa Fernandez-Marcos, Stefania Cocco, Maria Letizia Ruello, Flavio Fornasier, Giuseppe Corti
Editorial Material
Chemistry, Multidisciplinary
Carlos Thomas, Jorge de Brito, Valeria Corinaldesi
APPLIED SCIENCES-BASEL
(2021)
Editorial Material
Chemistry, Physical
Mihaela Girtan, Antje Wittenberg, Maria Luisa Grilli, Daniel P. S. de Oliveira, Chiara Giosue, Maria Letizia Ruello
Summary: This editorial delves into a comprehensive analysis of the distribution of chemical elements and minerals in the Earth, Sun, and Universe, highlighting the importance of understanding element formation and properties for future technical applications and addressing critical availability issues. It also emphasizes the need for a multidisciplinary effort to tackle the challenge of Critical Raw Materials.
Article
Chemistry, Physical
Mattia Pierpaoli, Chiara Giosue, Natalia Czerwinska, Michal Rycewicz, Aleksandra Wieloszynska, Robert Bogdanowicz, Maria Letizia Ruello
Summary: The high demand for personal protective equipment during the pandemic has highlighted the issues of centralized production and environmental impact of single-use items. The research team developed an open-source electrospinning setup for efficient and sustainable particulate matter filtration.
Article
Chemistry, Physical
Elena N. Popova, Irina L. Deryagina, Evgeniya G. Valova-Zaharevskaya, Maria Letizia Ruello, Vladimir V. Popov
Summary: This study focuses on heavily drawn multicore Cu-18Nb composites and analyzes their microstructure, microhardness, and thermal stability. The research demonstrates that under higher strain, the distinctive fiber texture of the material becomes sharper, with distortions observed in both niobium and copper lattice structures. The structural changes in niobium filaments during annealing result in a significant decrease in strength at high temperatures.
Article
Green & Sustainable Science & Technology
Chiara Giosue, Daniele Marchese, Matteo Cavalletti, Robertino Isidori, Massimo Conti, Simone Orcioni, Maria Letizia Ruello, Pierluigi Stipa
Summary: European self-sufficiency in the battery sector is a major need, with the increasing demand for key lithium-ion battery materials. Efforts are being made to improve legislation on battery recycling and to explore the possibility of circular economy principles. While specific regulations are needed for LIBs, there are ongoing industrial examples and European projects that demonstrate the feasibility and importance of reusing and recycling LIBs.
Article
Green & Sustainable Science & Technology
Qaisar Maqbool, Natalia Czerwinska, Chiara Giosue, Simona Sabbatini, Maria Letizia Ruello, Francesca Tittarelli
Summary: Green-synthesized TiO2 nanoparticles, produced using secondary metabolites from organic waste, showed excellent photocatalytic performance for the degradation of pollutants. When added to indoor finishing materials, these nanoparticles enhanced their photocatalytic properties, even at low concentrations.
JOURNAL OF CLEANER PRODUCTION
(2022)
Editorial Material
Chemistry, Multidisciplinary
Carlos Thomas, Jorge de Brito, Valeria Corinaldesi
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Analytical
C. H. Joseph, Francesca Luzi, S. N. Afifa Azman, Pietro Forcellese, Eleonora Pavoni, Gianluca Fabi, Davide Mencarelli, Serena Gentili, Luca Pierantoni, Antonio Morini, Michela Simoncini, Tiziano Bellezze, Valeria Corinaldesi, Marco Farina
Summary: In this study, the inverted near-field scanning microwave microscopy (iSMM) is used to investigate a graphene oxide-based epoxy nanocomposite material. The high-resolution spatial mapping of local conductance provides a quantitative analysis of the sample's electrical properties.
Review
Chemistry, Physical
Luigi Coppola, Tiziano Bellezze, Alberto Belli, Alessandra Bianco, Elisa Blasi, Miriam Cappello, Domenico Caputo, Mehdi Chougan, Denny Coffetti, Bartolomeo Coppola, Valeria Corinaldesi, Alberto D'Amore, Valeria Daniele, Luciano Di Maio, Luca Di Palma, Jacopo Donnini, Giuseppe Ferrara, Sara Filippi, Matteo Gastaldi, Nicola Generosi, Chiara Giosue, Loredana Incarnato, Francesca Lamastra, Barbara Liguori, Ludovico Macera, Qaisar Maqbool, Maria Cristina Mascolo, Letterio Mavilia, Alida Mazzoli, Franco Medici, Alessandra Mobili, Giampiero Montesperelli, Giorgio Pia, Elena Redaelli, Maria Letizia Ruello, Paola Scarfato, Giuliana Taglieri, Francesca Tittarelli, Jean-Marc Tulliani, Antonino Valenza
Summary: The improvement of concrete structures' durability is crucial for enhancing the sustainability of buildings and infrastructures. Monitoring systems are necessary to detect material deterioration, including the penetration of aggressive substances into concrete and the corrosion of carbon-steel reinforcement, in order to ensure a prolonged service life. Proper data collection enables the planning of suitable restoration works using traditional or innovative techniques and materials. This study focuses on building heritage and presents the latest findings for the conservation and restoration of reinforced concrete structures and masonry buildings.
Article
Materials Science, Composites
Silvia Palmieri, Mattia Pierpaoli, Luca Riderelli, Sheng Qi, Maria Letizia Ruello
JOURNAL OF COMPOSITES SCIENCE
(2020)
Article
Engineering, Manufacturing
Chiara Giosue, Alessandra Mobili, Barbara Citterio, Francesca Biavasco, Maria Letizia Ruello, Francesca Tittarelli
MANUFACTURING REVIEW
(2020)
Article
Engineering, Manufacturing
Mattia Pierpaoli, Michal Rycewicz, Aneta Luczkiewicz, Sylwia Fudala-Ksiazek, Robert Bogdanowicz, Maria Letizia Ruello
MANUFACTURING REVIEW
(2020)