Browsing by Subject "Alkali activation"
Now showing items 1-7 of 7
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A comparative study of the environmental impact of alkali activated and traditional materials
(2022)Many construction materials carry significant environmental impacts because they require high energy input and non-renewable materials for production, contributing to material depletion and greenhouse gas emissions. In ... -
Durability of Alkali-Activated Materials Made with a High-Calcium, Basic Slag
(2021)Alkali activated (AA) materials have been investigated for decades as an alternative to Portland cement (PC) products. Most consist of a silicate waste activated with alkalis, which leads to lower green-house gas emissions ... -
Fitness of a high-calcium slag for the production of alkali activated materials.
(ISBN: 978-989-54499-1-0, 2021)Alkali-activated (AA) materials are considered a more sustainable alternative to some traditional materials. This paper studies the feasibility of producing building materials by activating an Irish ground granulated blast ... -
Long-Term Durability and Mechanical Performance of Alkali-Activated, Slag Cements
(2021)Alkali activated (AA) cements are considered less harmful to the environment than Portland cements (PC), as they consist of a silicate waste in lieu of a PC clinker, and this implies lower green-house gas emissions and ... -
Potential of a low-calcium fly ash (FA) for the production of alkali-activated materials
(2020)Coal-FA from power stations is an industrial waste abundantly produced in the world. FA can be used asa silicate precursor, and activated with an alkali-metal source to produce alkali-activated materials (AAMs).AAMs are ... -
Properties of Alkali Activated Materials made with bauxite refining residue (red mud-RM) and blends of RM with fly ash (FA)
(ISBN: 978-989-54499-3-4, 2023)A bauxite refining residue (RM), both alone and blended with FA at 30% and 50%, is activated with alkalis (Na2SiO3 and Na2SiO3/NaOH) to produce geopolymer cements. Alkali-activated materials (AAMs)/geopolymers are a more ... -
Suitability of a high-calcium slag for alkali activation, and strength and microstructure of the resultant materials.
(2022)We study the feasibility of producing building materials by activating an Irish slag with alkali-metal activators. The slag is highly amorphous and basic (CaO+ MgO/SiO2=1.56), with CaO/SiO2=1.41 and Al2O3/SiO2=0.34 which ...