Version 1
: Received: 14 February 2024 / Approved: 14 February 2024 / Online: 16 February 2024 (04:14:59 CET)
How to cite:
Nalewajko, M.; Bołtryk, M. Use of Alkaline-Activated Energy Waste Raw Materials in Geopolymer Concrete. Preprints2024, 2024020803. https://doi.org/10.20944/preprints202402.0803.v1
Nalewajko, M.; Bołtryk, M. Use of Alkaline-Activated Energy Waste Raw Materials in Geopolymer Concrete. Preprints 2024, 2024020803. https://doi.org/10.20944/preprints202402.0803.v1
Nalewajko, M.; Bołtryk, M. Use of Alkaline-Activated Energy Waste Raw Materials in Geopolymer Concrete. Preprints2024, 2024020803. https://doi.org/10.20944/preprints202402.0803.v1
APA Style
Nalewajko, M., & Bołtryk, M. (2024). Use of Alkaline-Activated Energy Waste Raw Materials in Geopolymer Concrete. Preprints. https://doi.org/10.20944/preprints202402.0803.v1
Chicago/Turabian Style
Nalewajko, M. and Michał Bołtryk. 2024 "Use of Alkaline-Activated Energy Waste Raw Materials in Geopolymer Concrete" Preprints. https://doi.org/10.20944/preprints202402.0803.v1
Abstract
Silica fly ash, Certyd aggregate, and an alkaline solution were used to produce lightweight geo-polymer concretes. The compressive strength, water absorption, bulk density and SEM photos showing the structure of the obtained composite were carried out. Tests conducted on the specifi-cation of lightweight geopolymer concretes have revealed significant chemical interactions between the ash aggregate and the geopolymer mortar, particularly when the coarse aggregate surface has been pre-treated with an alkaline solution. Statistical analysis of the experimental data, which in-vestigated the influence of three key variables on compressive strength, water absorption, and bulk density of Lightweight Geopolymer Concrete (LBG), identified the following factors as having the most substantial impact: the quantity of alkali used, the curing temperature, and the concentration of alkali in the mixture. The optimal test series exhibited a commendable compressive strength of 20.14 megapascals (MPa), accompanied by a water absorption rate of 14.72% and a bulk density of 1486.6 kilograms per cubic meter (kg/m³). These findings underscore the importance of alkali con-tent, curing temperature, and alkali concentration in tailoring the properties of lightweight geo-polymer concrete to meet specific performance requirements.
Keywords
lightweight geopolymer concrete; aluminosilicate artificial aggregate; fly ashes; compressive strength of geopolymers; water absorption; bulk density
Subject
Chemistry and Materials Science, Materials Science and Technology
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.
