Use of biomass wood ash to produce sustainable geopolymeric pastes

L Silvestro, TP Scolaro, AS Ruviaro… - … and Building Materials, 2023 - Elsevier
Biomass stands out as a more sustainable energy source, and forecasts indicate an
increase in its use mainly due to environmental aspects. The resulting ash has potential …

Strain-hardening magnesium-silicate-hydrate composites (SHMSHC) utilizing reactive magnesia cement (MgO) and calcined clay (metakaolin)

D Kumar, KUA Sanalkumar, EH Yang - Cement and Concrete Composites, 2024 - Elsevier
This study demonstrated the feasibility of utilizing calcined clay (metakaolin) as a silica
source for the development of polyethylene (PE) fiber-reinforced strain-hardening …

[HTML][HTML] Slag-modified metakaolin-based 3D printed geopolymer: Mechanical characterisation, microstructural properties, and nitrogen physisorption pore analysis

MB Jaji, GPAG van Zijl, AJ Babafemi - Journal of Building Engineering, 2024 - Elsevier
This study aims to enhance metakaolin (MK)-based binders with slag up to 30% at 10%
intervals and increase the aggregate-to-binder ratio (a/b) from 1.6 in a previous study to 2 for …

Ternary sustainable geopolymer matrices containing metakaolin, water treatment sludge, and porcelain tile polishing residue

AS Ruviaro, L Silvestro, HA Santana, A Araújo… - … and Building Materials, 2024 - Elsevier
Geopolymeric matrices allow for the incorporation of a wide variety of waste materials.
Therefore, this study aimed to evaluate ternary mixtures composed of metakaolin, water …

Utilizing lithium slag to improve the physical-chemical properties of alkali-activated metakaolin-slag pastes: Cost and energy analysis

C Guo, R Wang - Construction and Building Materials, 2023 - Elsevier
The utilization of lithium slag (LS) poses an imminent challenge in the solid waste disposal
industry. In this work, ternary alkali-activated materials (AAM) were synthesized for the first …

Early-age structural build-up and rheological assessment of alkali-activated slag-red clay brick waste pastes: Influence of silica modulus and precursors proportions

I de Castro Carvalho, X Dai, AP Kirchheim… - Cement and Concrete …, 2024 - Elsevier
Sustainability plays a crucial role in the current context of the cement industry, and alkali-
activated materials (AAMs) are emerging as eco-efficient alternative binders. On the other …

Sustainable alkali-activated materials: Leveraging spontaneous combustion coal gangue for enhanced cementitious performance

L Zhang, Y Zhang, Q Wang, W Zhang, Z Li - Materials Today …, 2024 - Elsevier
The limitations of metakaolin (MK) in the production of alkali-activated materials (AAMs),
such as high cost, energy-intensive preparation, and dependency on high concentrations of …

Utilizing porcelain tile polishing residue in eco-efficient high-strength geopolymers with steel microfibers

MH Menger, AS Ruviaro, L Silvestro, TG Corrêa… - Structures, 2023 - Elsevier
Geopolymers are an alternative that produces low environmental impact binders with
satisfactory mechanical properties. This research evaluated the influence of adding steel …

Alkaline Activation of Binders: A Comparative Study

BIA Alves, MT Marvila, JAT Linhares Júnior, CMF Vieira… - Materials, 2024 - mdpi.com
Binders formulated with activated alkali materials to replace Portland cement, which has
high polluting potential due to CO2 emissions in its manufacture, have increasingly been …

Thermally-treated asbestos-cement wastes as supplementary precursor for geopolymeric binders: CO2 emission and properties

HA Santana, AS Ruviaro, DV Ribeiro, MS Cilla… - Waste Management, 2024 - Elsevier
This article explores the impact of thermally treated asbestos-cement waste (ACW T) on
metakaolin-based geopolymers, using liquid sodium silicate (LSS) and liquid potassium …