A comprehensive review of synthesis, characterization, and applications of aluminosilicate materials-based geopolymers

El Alouani, Marouane; Saufi, Hamid; Aouan, Badr; Bassam, Rajaa; Alehyen, Saliha; Rachdi, Younes; El Hadki, Hamza; El Hadki, Ahmed; Mabrouki, Jamal; Belaaouad, Said; Ez-Zaki, Hassan; Barka, Noureddine

doi:10.1016/j.envadv.2024.100524

Cited by 2 publications

(1 citation statement)

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“…Their low carbon footprint and superior strength promise more durable buildings and a cleaner planet [ 14 ]. “geopolymer” refers to amorphous aluminosilicate networks of Na + or K + [ 15 ], formed through alkaline activation, known as synthesis or polymerization. The reactive materials have a chemical composition rich in silica and alumina and contain high amounts of highly energetic solid phases, such as fly ash, steel slag, and rice husk ash [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

Enhancing Concrete Durability and Strength with Fly Ash, Steel Slag, and Rice Husk Ash for Marine Environments

Barragán-Ramírez,

González-Hernández,

Bautista-Ruiz

et al. 2024

Materials

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The effect of an alternative source of silica, based on class F fly ash mixed with blast furnace slag and activated by rice husk ash (RHA), to produce concrete exposed to marine environments was evaluated. Four mixtures activated by the combination of 85% NaOH 14M + 15% RHA were manufactured to achieve a liquid/solid ratio of 0.20. Fly ash was incorporated into the steel slag mixture at addition percentages of 20, 40, 60, and 80%, and evaluated at 28, 900, and 1800 days for pore and chloride ion absorption. In general, including rice husk ash in the mixture of fly ash and steel slag significantly affected mechanical performance because it was possible to obtain concrete with high mechanical resistance. Concerning the durability evaluation, the effect of the activator generated by rice husk ash was observed, and the increase in steel slag added to the cementitious samples improved the capacity of the material to resist the penetration and diffusion of chloride ions.

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Section: Introductionmentioning

confidence: 99%