volume 67, issue 382, P164-178 2021
DOI: 10.1590/0366-69132021673823004
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R. T. Lermen, E. M. Korf, L. N. de Oliveira, R. N. de Oliveira, D. D. dos Santos Neto, R. Ferreira Júnior, R. A. Silva

Abstract: The physical and mechanical properties of foamed geopolymers were determined. The geopolymers were made with two different metakaolins (from Metacaulim do Brasil -MB, and Pantano Grande/RS -MPG) as precursors, with NaOH and Na 2 SiO 3 as activators, and with the addition of foam, which was produced with the foaming agent diethanolamide of coconut fatty acid with a minimum of 80% concentration. Also, two times (2.5 and 4 h) were used for the calcination of MPG at 750 °C. The results showed that all factors (pre…

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