K<sub>2</sub>O-Metakaolin-Based Geopolymer Foams: Production, Porosity Characterization and Permeability Test

In this paper, four near-net shaped foams were produced via direct foaming, starting from a benchmark metakaolin-based geopolymer formulation. Hydrogen peroxide and metallic silicon were used in different amounts as blowing agents to change the porosity from meso- to ultra-macro-porosity. Foams were...

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Bibliographic Details
Main Authors: Elettra Papa, Elena Landi, Francesco Miccio, Valentina Medri
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/15/3/1008