Article
Biochemistry & Molecular Biology
Ines Silveirinha Vilarinho, Marinelia Neto Capela, Ana Sofia Pinho, Joao Antonio Labrincha, Maria Paula Seabra
Summary: This study aims to develop eco-friendly materials using waste generated from biomass burning. The results showed that the incorporation of FA decreases the compressive strength of the specimens, but values higher than 30 MPa can still be achieved with 50 wt.% of FA incorporation. In addition, there were no significant differences in other evaluated characteristics among the specimens, indicating the potential to reduce the carbon footprint in the construction sector by utilizing waste materials.
Article
Polymer Science
Kinga Plawecka, Patrycja Bazan, Wei-Ting Lin, Kinga Korniejenko, Maciej Sitarz, Marek Nykiel
Summary: The main aim of this research is to assess the suitability of different fly ashes as raw materials for manufacturing geopolymers. The study found that materials based on fly ashes had similar compressive strength but significant differences in flexural strength, with ultra-fine fly ash showing lower flexural strength. Process optimization is needed for materials based on a precursor from a waste incineration plant.
Article
Chemistry, Multidisciplinary
M. A. Gomez-Casero, C. De Dios-Arana, J. S. Bueno-Rodriguez, L. Perez-Villarejo, D. Eliche-Quesada
Summary: Due to the large production and environmental impact of coal fly ash (FA), alternative uses for this by-product are being researched. Geopolymers, a promising building material, can be synthesized using FA as a source of aluminosilicates to replace traditional materials. The synthesized geopolymers showed similar mechanical and thermal properties to control geopolymers, but the MK-FA blended geopolymers had slightly lower compressive strengths and thermal conductivity.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2022)
Article
Polymer Science
Giovanni Dal Poggetto, Antonio D'Angelo, Michelina Catauro, Luisa Barbieri, Cristina Leonelli
Summary: Recycling waste corundum abrasive powder in metakaolin-based geopolymer formulations can reduce waste amount and environmental damage, as well as lower transportation costs. The addition of waste corundum does not disturb the geopolymerization process and results in a stable and safe final product with improved ionic conductivity.
Article
Construction & Building Technology
Quanchao Zhang, Dajian Huang, Xiaopeng Zhang, Longyuan Lin, Zhiwu Wang, Wenjie Tang, Xiaohu Qiang
Summary: In this study, a steam-jet mill was used to optimize the fineness and properties of fly ash (FA) as a replacement for metakaolin (MK) in the production of geopolymers. The particle size of FA decreased and the particles changed from spherical to irregular shape with increasing treatment frequency. Different treatment processes and FA substitution ratios were investigated to reveal the hydration mechanism and mechanical properties of geopolymers using XRD, FT-IR, SEM, EDS, and LF-NMR techniques. The results showed that the small particle size and irregular shape of the FA had high activity and excellent filling effect, leading to increased compressive strength of geopolymers.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Chemistry, Physical
Haozhe Guo, Baifa Zhang, Liangliang Deng, Peng Yuan, Mengyuan Li, Qiang Wang
Summary: This study synthesized SAP geopolymers using FA and found that increasing FA content shortened setting time but decreased compressive strength. High FA proportion led to lack of active aluminum, formation of ACP, and ultimately decreased compressive strength.
APPLIED CLAY SCIENCE
(2021)
Article
Construction & Building Technology
Khairunnisa Zulkifly, Heah Cheng-Yong, Liew Yun-Ming, Mohd Mustafa Al Bakri Abdullah, Ong Shee-Ween, Mohd Suhaimi Bin Khalid
Summary: This study investigates the influence of NaOH concentration, solid-to-liquid ratio, and sodium silicate-to-sodium hydroxide ratio on the compressive strength development of fly ash-metakaolin blend geopolymers. The addition of aluminum phosphate as a source of aluminum was found to significantly enhance the physical and mechanical properties of the blend geopolymer.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Materials Science, Ceramics
Emre Yavuz, Nazli Ipek Kul Gul, Niyazi Ugur Kockal
Summary: Geopolymers with appropriate mechanical performances and eco-friendly impacts have been proposed as an alternative to ordinary concrete. This study investigated the interaction between different types of fly ash and silica fume in geopolymers. The results showed that the concentration of alkali activator had a significant effect on the mechanical properties of geopolymers. It was found that using a combination of fly ash and silica fume improved the mechanical properties of geopolymers. Geopolymers prepared with class F fly ash exhibited higher mechanical properties and fewer cracks.
CERAMICS INTERNATIONAL
(2022)
Article
Biotechnology & Applied Microbiology
Mohammad A. Al-Ghouti, Mariam Khan, Mustafa S. Nasser, Khalid Al-Saad, Oon Ee Heng
Summary: Waste destruction through incineration is widely accepted globally, but if not operated and managed properly, it can be environmentally harmful. The integration and utilization of municipal solid waste bottom ash and fly ash hold potential as a sustainable option for conserving natural resources.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Construction & Building Technology
Eric Enrique Sanchez Diaz, Vladimir A. Escobar Barrios
Summary: This study revises the use of geopolymers for energy conversion, with a focus on their conductive properties, Seebeck effect, and piezoelectric effect. It discusses the effects of materials like TiO2 and carbon-based materials, as well as alkaline activator concentrations, on geopolymers. The research emphasizes the piezoelectric effects on geopolymers when incorporating graphene and TiO2 as fillers, showcasing their potential in solar, thermal, and mechanical energy conversion.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Multidisciplinary Sciences
Qingwei Sun, Siyuan Zhao, Xuzhe Zhao, Yu Song, Xinyu Ban, Ni Zhang
Summary: This study prepared geopolymers with similar mechanical performance to cement by mixing ground fly ash with a small amount of cement. The influence of fly ash grinding degree on the properties and reaction degree of the geopolymer was investigated. The results showed that increasing the grinding degree of fly ash significantly improved the compressive strength of the geopolymer and increased the microstructure density of the materials. Furthermore, the reaction degree of the geopolymer increased as the grinding degree of the fly ash increased, but the growth rate slowed down when the grinding time exceeded 40 minutes.
Article
Geochemistry & Geophysics
Mustafa Cem Usta, Can Rustu Yoruk, Mai Uibu, Tiina Hain, Andre Gregor, Andres Trikkel
Summary: In this study, fly ash compacts were prepared by accelerated carbonation using locally available ashes in Estonia. Various variables such as compaction pressure, curing temperature, CO2 concentration, and pressure were investigated to understand their influence on CO2 uptake and strength development. The porous surface structure of the compacts changed after carbonation, with an increase in CO2 uptake levels observed under higher temperature, gas pressure, and CO2 concentration.
Article
Environmental Sciences
Jiawei Tan, Hancheng Dan, Jiabin Li
Summary: The use of metakaolin-based geopolymer as a S/S binder for MSWI FA is an effective approach. An appropriate dosage of MSWI FA can enhance the strength development of geopolymer, while excessive addition significantly decreases the strength. The immobilization efficiency of heavy metals in geopolymer is influenced by their ionic radius.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Paulina Wisniewska, Natalia A. Wojcik, Jacek Ryl, Robert Bogdanowicz, Henri Vahabi, Krzysztof Formela, Mohammad Reza Saeb
Summary: Recycling and management of rubber wastes have reached an early-stage maturity in the pursuit of sustainable and circular materials. However, the solutions for sustainable development of rubber wastes are limited, resulting in inadequate properties and performance features of recycled products. In this study, a experimental protocol is introduced for manufacturing semi-sustainable polymer composites using ground tire rubber (GTR) and ethylene-vinyl acetate copolymer (EVA). The resulting composites are analyzed for their processing, properties, and performance features. The study shows promising properties and performance for highly-loaded 50/50 GTR/EVA systems, with good flexibility for additive manufacturing. The tensile strength is independent of carbon black (CB) type and blend composition, while the elongation at break changes depending on the CB type and content. The thermal stability, flame retardancy, and electrical conductivity of the composites are also examined.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Environmental Sciences
Enrique C. Peres, Matias Schadeck Netto, Evandro S. Mallmann, Luis F. O. Silva, Edson L. Foletto, Guilherme L. Dotto
Summary: Geopolymers were synthesized from fly and bottom ashes of a thermoelectrical power plant in Brazil, aiming to add value to waste materials. It was found that geopolymers produced by conventional methods had higher surface area and total pore volume, while ultrasound-assisted synthesis showed better adsorption potential in some cases. Both methods demonstrated good adsorption performance for heavy metals like Ag+, Cu2+, Co2+, and Ni2+, with removal percentages exceeding 90%.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Pietro C. D. Tortora, Alex Maldonado-Alameda, Jofre Manosa, Alex C. Quintero-Payan, Cristina Leonelli, Isabella Lancellotti, Josep M. Chimenos
Summary: This study evaluated the potential use of weathered bottom ash (WBA) from municipal solid waste incineration as a precursor for alkali-activated binders. The results showed that temperature and humidity conditions play a crucial role in the formation of alkali-activated binders. Optimal compactness and compressive strength were achieved under specific curing conditions. Additionally, lower porosity and extended curing time helped reduce the leaching concentration of heavy metals and metalloids.
Article
Chemistry, Multidisciplinary
Michelina Catauro, Giovanni Dal Poggetto, Severina Pacifico, Fernanda Andreola, Isabella Lancellotti, Luisa Barbieri
Summary: This study compared the properties of silico-aluminous and silicate materials for indoor and outdoor cultivation. The materials showed inhibitory effects on bacterial strains and positive effects on mitochondrial activity of fibroblast cells. The leachate heavy metal concentrations were below the limit set by European law and the materials released nutrients suitable for agronomic purposes.
APPLIED SCIENCES-BASEL
(2022)
Article
Construction & Building Technology
A. Maldonado-Alameda, Jessica Giro-Paloma, Fernanda Andreola, Luisa Barbieri, Isabella Lancellotti, J. M. Chimenos
Summary: This study examines the environmental feasibility of using waste as raw material for the manufacture of alkali-activated binders. The results show that increasing the content of metakaolin in the binders decreases compressive strength, but increasing the curing period improves encapsulation efficiency and mechanical performance.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Paride Coppelli, Simone Pedrazzi, Marco Puglia, Nicolo Morselli, Giulio Allesina, Fernanda Andreola, Isabella Lancellotti, Luisa Barbieri
Summary: This study investigated the possibility of recycling cork scraps and successfully produced lightweight ceramics using pyrolysed cork char as a substitution for clay.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Multidisciplinary
C. Righi, I Lancellotti, L. Barbieri, G. M. Kirkelund
Summary: Municipal solid waste incineration fly ash (MSWI FA) contains hazardous heavy metals and soluble salts. This research investigated the use of electrodialytic treatment as a pre-treatment for MSWI FA, and its impact on metakaolin-based geopolymer as an encapsulation matrix. The results showed that geopolymer effectively encapsulated heavy metals, and electrodialytic pre-treatment improved the environmental and mechanical characteristics of the geopolymer.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2022)
Article
Environmental Sciences
Monica Duque-Acevedo, Isabella Lancellotti, Fernanda Andreola, Luisa Barbieri, Luis J. Belmonte-Urena, Francisco Camacho-Ferre
Summary: This research conducted a general analysis on the production of bio-based products for the construction sector using Agricultural Waste Biomass (AWB). The results showed great potential in AWB for the construction industry, but practical application is still limited and requires stronger partnerships and improved government strategies.
ENVIRONMENTAL SCIENCES EUROPE
(2022)
Article
Materials Science, Multidisciplinary
Caterina Sgarlata, Cristina Leonelli, Isabella Lancellotti, Cecilia Mortalo, Mario Berrettoni, Martina Fattobene, Silvia Zamponi, Marco Giorgetti
Summary: This article discusses recent experimental advances in using inorganic substances to encapsulate pollutants, with a focus on the potential applicability and constraints of the geopolymerization process in treating chromium-containing wastewater. The study presents a novel process that utilizes wastewater, clay by-product, and NaOH pellets to produce a solidified ceramic-like material, immobilizing heavy metal cations, anions, and surfactant macromolecules to prevent environmental damage.
FRONTIERS IN MATERIALS
(2022)
Proceedings Paper
Polymer Science
Beatrice Malchiodi, Luisa Barbieri, Isabella Lancellotti, Paolo Pozzi
Summary: River maintenance can produce vegetable biomass, and the byproduct of the gasification process, char, offers potential for more sustainable energy production. Utilizing char in polyurethane panels enhances their thermal insulation and mechanical properties.
MACROMOLECULAR SYMPOSIA
(2022)
Article
Materials Science, Multidisciplinary
F. Altimari, I. Lancellotti, C. Leonelli, F. Andreola, H. Elsayed, E. Bernardo, L. Barbieri
Summary: Italian volcanic quarry scraps with little market value were used to produce lightweight geopolymers and highly porous foams. The powders were alkali activated with NaOH solution. Geopolymers exhibited a porosity of around 35% with variable compressive strength, while highly porous foams were easily obtained from the same scraps through intensive mechanical stirring of alkali-activated suspensions.
Article
Chemistry, Multidisciplinary
Giovanni Dal Poggetto, Roberta Marchetti, Isabella Lancellotti, Cristina Leonelli, Luisa Barbieri
Summary: This paper presents the transformation of cork powdery waste into a geopolymer formulation, resulting in self-standing insulating panels with thermal conductivity as low as 0.115 W/mK and compressive strength around 2-3 MPa using 9 wt% of cork waste.
APPLIED SCIENCES-BASEL
(2023)
Article
Environmental Sciences
Elia Pagliarini, Grazia Totaro, Andrea Saccani, Francesca Gaggia, Isabella Lancellotti, Diana Di Gioia, Laura Sisti
Summary: In recent years, the valorization of food waste as an energy and/or chemicals source has gained great attention. Coffee by-products, such as coffee pulp, coffee husks, silver skin, and spent coffee, have been investigated for their potential as antioxidants and valuable chemicals, as well as fillers in composites. This study explores a new valorization route for coffee silver skin (CSS), which is typically dumped, by incorporating it into biocomposites based on poly(butylene succinate-co-adipate) (PBSA). The resulting mulching films, formulated with up to 30 wt% CSS, exhibit hydrophilic properties and release plant growth-promoting bacteria, as confirmed by in-vitro tests and pot experiments using lettuce as a model crop. This approach offers potential advantages in terms of soil preservation and fertilization, reduction of polymeric materials in mulching products, and the utilization of waste.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Physical
Luisa Barbieri, Fabiana Altimari, Fernanda Andreola, Bruno Maggi, Isabella Lancellotti
Summary: This research aimed to find new applications for domestically sourced volcanic products and related waste by creating a database of secondary volcanic raw materials and their characteristics. The materials can be used in lightweight aggregates for agronomic purposes or in the construction field. Pumice and lapillus can play a role in geopolymer preparation, while zeolitic tuff can be used for flue gas treatment. These materials also have applications in tile production and as supplementary cementitious material or aggregates.
Article
Geochemistry & Geophysics
Maura Fugazzotto, Paolo Mazzoleni, Isabella Lancellotti, Rachel Camerini, Pamela Ferrari, Maria Rosaria Tine, Irene Centauro, Teresa Salvatici, Germana Barone
Summary: The disposal of ceramic industrial waste is a significant problem for production plants. Utilizing these waste as precursors for alkaline-activated materials could provide a solution, generating new binders/blocks with reduced CO2 emissions. This study compares different types of industrial ceramic waste and investigates their potential for conversion into resources, showing promising results with 80%-100% waste precursor synthesis.
Article
Chemistry, Multidisciplinary
Caterina Sgarlata, Maria Camila Ariza-Tarazona, Enrico Paradisi, Cristina Siligardi, Isabella Lancellotti
Summary: The aim of this research was to evaluate the possibility of reusing waste foundry sands as a secondary raw material for the production of building materials. Ceramic samples and geopolymers were produced by replacing standard sand with different percentages of waste foundry sand. The results showed that up to 50% of foundry sand can be added without significantly affecting the properties of ceramic materials, while geopolymers achieved acceptable chemical stability and mechanical strength with 30% replacement of metakaolin with foundry sand.
APPLIED SCIENCES-BASEL
(2023)
Article
Horticulture
Elisabetta Sgarbi, Giulia Santunione, Francesco Barbieri, Monia Montorsi, Isabella Lancellotti, Luisa Barbieri
Summary: European guidelines direct the horticulture sector to improve its practices in environmental sustainability. This study explored the effects of an integrated fertilizer-box-based cultivation system on the growth of Lactuca sativa L. The results showed that increasing the amount of C-PIMs significantly improved lettuce growth.
Article
Construction & Building Technology
Qi Jiang, Wei Liu, Shaopeng Wu, Xuanwen Gou
Summary: This study analyzes the erosion mechanisms of NaCl solution on asphalt concrete and finds that NaCl solution softens asphalt and promotes the intrusion of crystalline salt into it. Salt crystallization alters the surface roughness of aggregates, resulting in a decrease in skid resistance but an improvement in compressive strength. Additionally, the concentration of NaCl solution initially has no significant impact on the mechanical performance of asphalt concrete, but its domination gradually increases with the intensification of cyclic effects.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Lili Kan, Lan-qing Dai, Ning Kong, Bin Peng, Fei Wang
Summary: This paper investigates the effect of freezing and thawing cycles on the tensile behavior of cracked ultra-high performance concrete (UHPC). The results show that long-term freezing and thawing action deteriorates the cracking strength, tensile strength, tensile strain, and strain energy of cracked UHPC. On the other hand, the action of water generally favors the development of tensile properties of UHPC. The crack distribution tends to be unsaturated under freezing and thawing environment, and the re-hydration reaction is hindered. The pore structure near the crack varies under different environments.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Xin Xiao, Jingwei Li, Qingke Meng, Xiangshan Hou, Yanhui Liu, Xujiang Wang, Wenlong Wang, Shengtao Lu, Yuzhong Li, Yanpeng Mao, Tong Li
Summary: Preparing gypsum-based self-leveling mortar (GSLM) using beta-hemihydrate gypsum and solid wastes-derived sulfoaluminate cement (WSAC) can improve the mechanical performance of the mortar, but phosphorus impurities can weaken the hydration speed and degree.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Sihang Bao, Junzhen Di, Yanrong Dong, Ziqing Gao, Qing Gu, Yuanfang Zhao, Hongyu Zhai
Summary: Tailings dam break and leakage accidents pose a threat to the safety of people in mining areas and cause severe environmental pollution. This study focuses on solidifying tailing sand using microbial induced calcite precipitation (MICP) to improve strength and fix heavy metals. The curing time of MICP bio-cemented tailings is found to significantly impact the strength of tailings, while its effect on heavy metal fixation is minimal. The optimized MICP curing time is 10 days, resulting in improved strength and cementation of tailings particles.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Ferhat Benmahiddine, Fares Bennai, Achraf Charaka, Ameur El Amine Hamami, Abdelkader Tahakourt, Rafik Belarbi
Summary: This paper studied the effects of hysteresis on the hygrothermal behavior at the building scale. Through laboratory validation and numerical simulations, it was found that hysteresis has a significant impact on the relative humidity and total heat fluxes in buildings, while it does not have a noticeable effect on temperature variations.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
You Gao, Wei He, Xiayang Zhang, De'an Sun, Pei Li
Summary: This study determined the boundary line between the swelling and compression deformation zone in lateritic clay through wetting tests, and proposed a simple bimodal SWRC model. It also found that the existing strength model underestimated the tested values in the medium to high suction range, therefore a segmented strength equation was introduced for enhanced predictions of the strength properties of lateritic clay.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Prabhath Ranjan Kumar Soda, Asheer Mogal, Kalyan Chakravarthy, Nikhil Thota, Nimish Bandaru, Sanjay Kumar Shukla, K. M. Mini
Summary: This study investigates the use of encapsulated bacteria to improve the self-healing ability of concrete. Through various tests, it is found that using 20% cement-coated alginate beads (CCAB) and 5% nanosilica (NS) can achieve optimal strength and healing. This research is significant for enhancing the durability of concrete.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Shizhe Wang, Haiping Wu, Wen Yang, Wei Wang, Zhibo Zhu, Kun Nie, Luoxin Wang, Hua Wang, Jing Wu
Summary: In this study, photothermal-heat storage concrete (PHSC) was developed with excellent photothermal conversion performance and heat storage capacity. By absorbing and storing solar energy during the day and releasing it at night, PHSC can effectively reduce energy consumption in buildings.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Robin Deb, Jialuo He, Geetika Mishra, Yaghoob (Amir) Farnam
Summary: Incorporation techniques of phase change materials in cementitious composites have a significant influence on thermal properties. This study investigated the thermal behavior of low-temperature PCM when subjected to varying temperature change rates and pore confinement inside the porous network of lightweight aggregates. The results showed that ramp rates affect the nucleation and crystallization growth process during the phase transition, and the pore structure of the aggregates affects the supercooling phenomenon and confinement pressure of the PCM.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Eduardo Ferreira, Payam Sotoudeh, Dagmar Svecova
Summary: This study investigates the fatigue behavior of concrete under different stress reversal conditions. The results indicate that stress reversal generally causes more severe damage and reduces the cycles to failure compared to tensile fatigue. Additionally, adding some level of compression contributes to the energy required for failure under stress reversal fatigue. Specimens with higher concentration of fractured aggregates achieve longer fatigue lives.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Mag Raj Gehlot, Sandeep Shrivastava
Summary: This study evaluates the compatibility relationship between plaster bonds and the substrate under an accelerated aging environment, and finds that incorporating an appropriate amount of granite cutting waste can improve the strength parameters and adhesion of the cement mortar.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Min Zhang, Qirui Luo, Mingke Deng, Shixing Zhao
Summary: This study investigated the bond behavior between carbon FRCM composites with added short fibers and concrete substrates. The effects of different factors were considered and 36 specimens were tested and discussed. The experimental results were analyzed in terms of failure mode, load-slip curve, and characteristic parameters, and the contribution of weft yarns was taken into account in the developed bondslip model.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Dengkai Liu, Hongniao Chen, Ray Kai Leung Su
Summary: The susceptibility of building stones to fire and high temperature was investigated in this study by examining their physical and mechanical properties. The results show that both compressive and tensile properties of stones are affected by temperature changes. The tensile strength is particularly sensitive to temperature changes, requiring special attention to the components subjected to tensile stress in stone buildings. Principal component analysis was used to predict the mechanical properties of stones, providing a new method for calculating the residual mechanical properties after high temperature or fire.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Joso Maria Raposo, Eduardo Cavaco, Luis Costa Neves, Eduardo Julio
Summary: This paper investigates the correlation between the friction coefficient and the surface roughness of concrete-to-concrete interfaces. Experimental tests were performed on specimens with different surface treatments, and the surface roughness parameters were analyzed and correlated with the shear strength and friction coefficient. The results showed that certain roughness parameters had a strong positive correlation with the friction coefficient, while others had little or no correlation. A novel combined roughness parameter with optimized correlation was proposed.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Chiara Riccardi, Massimo Losa
Summary: The interest in using bio materials in asphalt pavements is growing due to economic reasons and environmental benefits. This study aimed to review the use of bio extenders as additives in binders, with a focus on replacements greater than 20% of fossil binder. The properties of bio-extended binders were found to vary substantially depending on the biomass source and production process.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
