Version 1
: Received: 24 August 2023 / Approved: 25 August 2023 / Online: 25 August 2023 (07:22:40 CEST)
Version 2
: Received: 21 September 2023 / Approved: 22 September 2023 / Online: 26 September 2023 (02:47:00 CEST)
How to cite:
Le, S.V.; Pławecka, K. Geopolymer Composites: Manufacturing of Sandwich Steel and Geopolymer Structures with Spray Technology without Formwork. Preprints2023, 2023081782. https://doi.org/10.20944/preprints202308.1782.v2
Le, S.V.; Pławecka, K. Geopolymer Composites: Manufacturing of Sandwich Steel and Geopolymer Structures with Spray Technology without Formwork. Preprints 2023, 2023081782. https://doi.org/10.20944/preprints202308.1782.v2
Le, S.V.; Pławecka, K. Geopolymer Composites: Manufacturing of Sandwich Steel and Geopolymer Structures with Spray Technology without Formwork. Preprints2023, 2023081782. https://doi.org/10.20944/preprints202308.1782.v2
APA Style
Le, S.V., & Pławecka, K. (2023). Geopolymer Composites: Manufacturing of Sandwich Steel and Geopolymer Structures with Spray Technology without Formwork. Preprints. https://doi.org/10.20944/preprints202308.1782.v2
Chicago/Turabian Style
Le, S.V. and Kinga Pławecka. 2023 "Geopolymer Composites: Manufacturing of Sandwich Steel and Geopolymer Structures with Spray Technology without Formwork" Preprints. https://doi.org/10.20944/preprints202308.1782.v2
Abstract
This research examines the fire resistance of geopolymer composites (GCs), formulated using alka-li-activated metakaolin and aluminum powder. The production method involves spray-coating carbon steel plates with fresh GCs, followed by a 28-day curing period at room temperature. Sub-sequently, fire performance and aging tests are conducted to evaluate fire resistance. The study investigates GC properties, including apparent density, bending strength, compression strength, thermal conductivity, porosity, and production cost. Morphological changes before and after fire and aging tests are analyzed using scanning electron microscopy (SEM). Results demonstrate GC foams' outstanding thermal insulation, providing up to 75 minutes of fire resistance with a 6 mm coating, reducing temperatures by 300 °C compared to uncoated steel. GCs exhibit a density of 670 kg/m³, thermal conductivity of 0.166 W/m·K, 68% porosity, and cost efficiency at 250 dollars per cubic meter. This study underscores the potential of foamed geopolymer coatings for effective and economical surface protection.
Chemistry and Materials Science, Surfaces, Coatings and Films
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Commenter: Su Le
Commenter's Conflict of Interests: Author