Per: Felipe daflon gama (UENF - ALBERTO LAMEGo), José Lucas Decoté de Carvalho Lirio (Uenf), José Alexandre Tostes Linhares Júnior (uenf), Markssuel Teixeira Marvila (ufv), Afonso Rangel Garcez de Azevedo (uenf), Carlos Maurício Fontes Vieira (uenf)
Abstract:
Geopolymers are a new class of inorganic binders that possess good mechanical strength, chemical inertness, and can be manufactured from a range of industrial by-products. It is worth noting that the use of ceramic and cementitious products in buildings has a significant environmental impact, especially during the firing stage, which results in ozone layer pollution. In this context, the utilization of alkaline activation technology is gaining momentum. The objective of this research is to analyze the possibility of introducing the blast furnace slag waste, called FGD, in the production of geopolymeric tiles. A distinctive aspect of this work lies in the methodology, as the test specimens were made by pressing, similar to ceramic bodies. The raw materials underwent analysis to determine the molar ratio of SiO2/Al2O3 (3.0 and 3.5). In addition to the variation of the waste content (0%, 10%, and 20%). Tests for water absorption, linear shrinkage, flexural strength, and bulk density were performed. The results were discussed, leading to the conclusion that although the linear shrinkage and water absorption meet the requirements of current standards, the flexural strength falls below the necessary threshold