Results 81 to 90 of about 7,891 (225)

Gamma and neutron attenuation of ASM geopolymers for radiation shielding applications: Theoretical study

open access: yesJournal of Radiation Research and Applied Sciences
This research paper studies the radiation attenuation properties of new geopolymers, such as Kaolin, GGBS, and PC. The shielding performance of these geopolymers is investigated against fast neutrons and gamma photons with energy varying between 0.015 ...
Norah Alomayrah   +3 more
doaj   +1 more source

The Role of Awareness in Sustainable Construction Materials Uptake in Developing Economies: Evidence From Nigeria

open access: yesSustainable Development, EarlyView.
ABSTRACT Sustainable Construction Materials (SCM) are crucial for reducing lifecycle emissions in the built environment, yet their adoption remains limited in many developing economies, such as Nigeria. This study investigates how awareness influences the adoption of SCM among professionals in Nigeria's Architecture, Engineering, and Construction (AEC)
Mumini Damilola Osuolale   +2 more
wiley   +1 more source

Cold‐curing effects on the strength development and sulfuric acid resistance of basalt fiber‐reinforced hybrid alkali‐activated slag mortars

open access: yesStructural Concrete, EarlyView.
Abstract Cold weather conditions impose substantial constraints upon the performance and long‐term resilience of concrete materials. Alkali‐activated slag (AAS) presents itself as a promising substitute, exhibiting sustained hydraulic activity even when exposed to ambient conditions characterized by low temperatures.
Zeynep Bahçeci   +3 more
wiley   +1 more source

Geopolymer: A Systematic Review of Methodologies

open access: yesMaterials, 2022
The geopolymer concept has gained wide international attention during the last two decades and is now seen as a potential alternative to ordinary Portland cement; however, before full implementation in the national and international standards, the geopolymer concept requires clarity on the commonly used definitions and mix design methodologies.
Jabulani Matsimbe   +3 more
openaire   +2 more sources

Behaviors and Mechanisms of Adsorption of MB and Cr(VI) by Geopolymer Microspheres under Single and Binary Systems

open access: yesMolecules
Geopolymers show great potential in complex wastewater treatment to improve water quality. In this work, general geopolymers, porous geopolymers and geopolymer microspheres were prepared by the suspension curing method using three solid waste products ...
Yi Fang   +6 more
doaj   +1 more source

Bacterial healing of cracks in metakaolin‐based geopolymer concrete exposed to high temperatures

open access: yesStructural Concrete, EarlyView.
Abstract This study examined the bacterial healing of metakaolin‐based geopolymer concrete modified with colemanite (K) and red mud (RM) exposed to high temperatures. The metakaolin‐based geopolymer concrete samples modified with 4% K and 6% RM were prepared.
Harun Tanyildizi   +3 more
wiley   +1 more source

Geopolymers as a Sustainable Chemical Platform: From Building Materials to Advanced Functional Applications

open access: yesThe Chemical Record, EarlyView.
Geopolymers are presented as a chemically programmable platform whose properties emerge from activation chemistry, nanoscale disorder, and interfacial design. The review highlights sustainability challenges, the shift toward nanoengineered and hybrid systems, and the rise of halloysite‐based architectures enabling tunable structures across scales for ...
Martina Maria Calvino   +4 more
wiley   +1 more source

Development of a Low-Density Waste-Based Geopolymer Construction Material

open access: yesBuildings
The construction industry, integral to national infrastructure development, faces environmental challenges attributed to Portland cement’s high energy consumption and carbon dioxide emissions during production.
Brian Ncube, Rishen Roopchund
doaj   +1 more source

Innovative electrospun geopolymer/zeolite/PVA composite membranes

open access: yesThe Canadian Journal of Chemical Engineering, Volume 104, Issue 8, Page 4254-4266, August 2026.
Proposed scheme of gas adsorption mechanisms on electrospun geopolymer/zeolite/PVA composite membranes. Abstract Innovative electrospun poly(vinyl alcohol) (PVA)–geopolymer–zeolite 13X composite membranes were successfully fabricated and systematically characterized.
Mariana Schneider   +7 more
wiley   +1 more source

Desenvolvimento de geopolímero a partir do uso de metacaulim [PDF]

open access: yes, 2015
TCC (graduação) - Universidade Federal de Santa Catarina. Campus Joinville. Engenharia de Infraestrutura.No contexto atual a comunidade científica tenta desenvolver ligantes alternativos ao cimento Portland, uma vez que a sua produção está associada à ...
Maccarini, Helena Somer
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