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Article
Construction & Building Technology
Jian-Cong Lao et al.
Summary: In this study, seawater sea-sand Engineered Geopolymer Composites (SS-EGC) were developed and achieved high compressive strength and high tensile ductility simultaneously. The influence of seawater and seasand on the matrix properties and tensile performance of EGC was investigated, with different fly ash-to-slag ratios considered. The findings of this study provided useful knowledge for the design and development of high-strength high-ductility SS-EGC towards sustainable and resilient marine infrastructures.
CEMENT & CONCRETE COMPOSITES
(2023)
Article
Green & Sustainable Science & Technology
Muhammad Riaz Ahmad et al.
Summary: Flue gas residues (FGR) from incineration plants were used as an alternative alkaline activator for producing low-carbon and cost-effective alkali-activated materials (AAMs), along with fly ash (FA) and slag as precursor materials. Microstructure analysis showed the formation of N-A-S-H gel, hybrid gel (C-N-A-S-H), and C-A-S-H gel as the main reaction products. The content of FGR directly influenced the formation of C-A-S-H gel. In the presence of Na2SO4, the volume of Ca-based reaction products (C-N-A-S-H and C-A-S-H) increased due to the activation of slag. The compressive strength of AAMs was in line with the microstructure analysis results. XRD analysis identified the formation of zeolite, apatite, and berlinite as new reaction products. Leaching concentrations of heavy metals in FGR were below the regulatory limits, classifying it as a non-hazardous material.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Multidisciplinary
Lanh Si Ho et al.
Summary: This study examines the potential of using local high-volume fly ash (HVFA) as a partial substitute for cement in high-strength concrete (HSC). The effects of fly ash inclusion on the long-term mechanical properties and durability of concrete were investigated. The results show that higher fly ash content is associated with lower HSC performance at 28 and 56 days, but the 30% fly ash sample achieves the highest performance at 120 days. Furthermore, incorporating local fly ash in HSC reduces CO2 emissions and energy consumption, promoting the sustainability of the construction industry.
RESULTS IN ENGINEERING
(2023)
Article
Engineering, Multidisciplinary
Rand H. Bayaidah et al.
Summary: This study investigated the unconventional use of raw oil shale particles as fine aggregate in concrete, instead of using it as an energy source pollutant. Various tests were conducted to analyze the properties and chemistry of the mixtures. The results showed that untreated oil shale particles formed a well-bonded interface with the cementitious matrix, while treated oil shale mixtures exhibited micro cracks and weak interface. Water absorption and compressive strength of the concrete were affected by the addition of oil shale, with different ratios producing different results.
RESULTS IN ENGINEERING
(2023)
Review
Chemistry, Physical
Guanlei Li et al.
Summary: This study expands the knowledge on the application of fly ash as a supplementary cementitious material and discusses the characteristics of cement-based composites containing fly ash. It is found that the addition of fly ash can have favorable impacts on material properties, but there is an optimum inclusion level. Chemical activation and the addition of nanomaterials can overcome the downsides of fly ash use and allow for higher volume application. By utilizing fly ash as a SCM, sustainable development can be promoted by reducing CO2 emissions, conserving resources, managing waste effectively, and reducing environmental pollution.
Article
Green & Sustainable Science & Technology
Tehseen Ahmad et al.
Summary: The marble industry in Pakistan is growing rapidly, with Khyber Pakhtunkhwa province being the largest producer of marble tiles. The production of marble tiles consumes a significant amount of water and has various environmental impacts. This study quantified the environmental impacts, water footprint, and cumulative energy demand of one-tonne marble tile production in Pakistan and provided recommendations to improve its environmental profile. The results showed that electricity consumption contributed the most to environmental burdens, and reducing electricity and waste materials can help mitigate these impacts. Additionally, installing wastewater treatment and recycling facilities is essential for improving the environmental sustainability of the industry.
Article
Engineering, Multidisciplinary
Najwa Wasif Jassim et al.
Summary: The practice of modifying weak soils with waste marble materials is increasingly important in geotechnical engineering. Adding 3% marble dust to untreated soil produces the best outcomes in terms of soil performance. Stabilizing subgrade soil with 3% waste marble dust can significantly reduce rutting and vertical compressive strains in flexible pavement.
RESULTS IN ENGINEERING
(2022)
Article
Chemistry, Inorganic & Nuclear
Sabina Yasmin et al.
Summary: In this study, six types of commonly used marble stones were analyzed for their thermoluminescence properties and it was found that the imported marble 'Carrara' from Italy has relatively better capability for radiation dose reconstruction in the range of 10-50 Gy, remaining reliable for up to four weeks post exposure. The Z(eff) values of the various marble samples also compare favorably with TLD-200 for low-level environmental radiation dosimetry.
APPLIED RADIATION AND ISOTOPES
(2021)
Article
Construction & Building Technology
Fadi Althoey
Summary: This study investigated the effects of NaCl on cement pastes, finding that an increase in NaCl concentration at lower temperatures led to a significant decrease in compressive strength, mainly due to the formation of secondary ettringite.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Crystallography
Omrane Benjeddou et al.
Summary: This study investigates the use of powder obtained from drying and grinding marble sludge waste as a mineral filler for construction materials. The test results confirmed that the marble powder is suitable as a mineral filler due to its high calcite content, lack of clay minerals, good particle grading, non-reactivity, and lack of impact on concrete strength.
Article
Construction & Building Technology
Hassan A. M. Abdelkader et al.
Summary: The study aims to explore the feasibility of using waste marble dust to improve soil properties, and significant improvements in soil properties were found, including reducing the plasticity index and swelling potential of expansive soils, increasing the maximum dry density and compressive strength, as well as the calcite content of the soil mixtures with the increase in marble dust content.
ADVANCES IN CIVIL ENGINEERING
(2021)
Article
Engineering, Civil
Mohammad Adeel Khan et al.
CIVIL ENGINEERING JOURNAL-TEHRAN
(2020)
Article
Medicine, General & Internal
Yuan-Ling Lee et al.
JOURNAL OF THE FORMOSAN MEDICAL ASSOCIATION
(2017)
Proceedings Paper
Engineering, Multidisciplinary
Noureddine Bouazza et al.
9TH INTERNATIONAL CONFERENCE INTERDISCIPLINARITY IN ENGINEERING, INTER-ENG 2015
(2016)
Article
Environmental Sciences
Osman Sivrikaya et al.
ENVIRONMENTAL EARTH SCIENCES
(2014)
Article
Environmental Studies
Nicola Careddu et al.
Article
Agricultural Engineering
Dongmin An et al.
BIOMASS & BIOENERGY
(2011)
Article
Construction & Building Technology
N. Gineys et al.
CEMENT AND CONCRETE RESEARCH
(2011)
Article
Construction & Building Technology
Shazim Ali Memon et al.
CONSTRUCTION AND BUILDING MATERIALS
(2011)
Article
Construction & Building Technology
A. Wesselsky et al.
CEMENT AND CONCRETE RESEARCH
(2009)
Article
Construction & Building Technology
L Alarcon-Ruiz et al.
CEMENT AND CONCRETE RESEARCH
(2005)
Article
Materials Science, Multidisciplinary
VP Della et al.
Article
Construction & Building Technology
R Jauberthie et al.
CONSTRUCTION AND BUILDING MATERIALS
(2000)
