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Alkali-Activated Hybrid Cement from Mineral Wool Fiber Waste and OPC
Buildings, 2023 Cements to replace ordinary portland cement (OPC) are currently being studied due to the high environmental costs of OPC production. One viable alternative is alkali-activated cements, which can be made from pozzolanic materials such as stone wool fiber ...
Diego A. Gutiérrez-Orrego +2 more
doaj +1 more source
Effect of Alkali - Activated Natural Pozzolan on Mechanical Properties of Geopolymer Concrete
Civil and Environmental Engineering, 2022 As an alternative to Ordinary Portland Cement (OPC), the alkali-activated binders have been developed with better technical characteristics and more extended durability.
Mohammed Zainab M. +2 more
doaj +1 more source
Supercritical CO2-Induced Evolution of Alkali-Activated Slag Cements
Materials, 2022 The phase changes in alkali-activated slag samples when exposed to supercritical carbonation were evaluated. Ground granulated blast furnace slag was activated with five different activators. The NaOH, Na2SiO3, CaO, Na2SO4, and MgO were used as activators.
Kamasani Chiranjeevi Reddy +7 more
openaire +2 more sources
Properties of cementless mortars activated by sodium silicate. [PDF]
, 2007 yesThe present paper reports the testing of 12 alkali-activated mortars and a control ordinary portland cement (OPC) mortar. The main aim is to develop cementless binder activated by sodium silicate powder.
Ashour, Ashraf F. +3 more
core +1 more source
Mechanical performance of glass-based geopolymer matrix composites reinforced with cellulose fibers [PDF]
, 2018 Glass-based geopolymers, incorporating fly ash and borosilicate glass, were processed in conditions of high alkalinity (NaOH 10-13 M). Different formulations (fly ash and borosilicate in mixtures of 70-30 wt% and 30-70 wt%, respectively) and physical ...
Bernardo, Enrico +2 more
core +2 more sources
Journal of CO2 Utilization, 2023 As international endeavors to diminish carbon emissions persistently escalate, the principles of net-zero emissions or carbon neutrality have gained prominence, prompting the implementation of diverse strategies globally to alleviate carbon emissions ...
Jinho Bang +5 more
doaj +1 more source
Lifecycle assessment of alkali activated cement concrete
Journal of Physics: Conference Series, 2021 Abstract Climate change is one of the most important environmental problems that our planet Earth is facing. This is due to the increased emission of greenhouse gases such as carbon dioxide. Concrete, the most consumed material in the construction industry is reported to be responsible for about 8% of worldwide carbon dioxide emissions ...
Angitha K Viswanath, K B Anand
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Durability of alkali-activated binders: a clear advantage over Portland cement or an unproven issue? [PDF]
, 2012 The alkali activation of alumino-silicate materials is a complex chemical process evolving dissolution of raw materials, transportation or orientation and polycondensation of the reaction products.
Abdollahnejad, Zahra +4 more
core +1 more source
Case Studies in Construction Materials, 2020 The scalability of the mechanochemical processing of an alkali-activated cement was investigated. Mechanochemical Processing of this cement was performed in the presence of carbon dioxide for carbon capture in the course of cement production. Pilot-scale
Faris Matalkah +2 more
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Performance of Sustainable Alkali Activated Mortars Containing Solid Waste Ceramic Powder
Chemical Engineering Transactions, 2018 As the cement industry contributed to increasing the global carbon dioxide emissions, researchers looked for other sustainable alternatives. Among them, one of the alternatives is alkali activated mortar containing no cement at all.
Ghasan Fahim Huseien +6 more
doaj +1 more source