Fast-Curing Geopolymer Foams with an Enhanced Pore Homogeneity Derived by Hydrogen Peroxide and Sodium Dodecyl Sulfate Surfactant

The properties of porous and lightweight ceramic foam that can be cured at room temperature using metakaolin-based geopolymers were studied. A geopolymer slurry was prepared metakaolin a potassium-based alkaline medium temperature, the obtained viscous paste expanded via gaseous methods, by means decomposition peroxide temperature. Therefore, (GP) developed in this study through multivariate geopolymer, foaming agents, surfactants (within 5 days) without separate heat treatment process. homogeneous micropores stabilization interface between oxygen gas bubbles generated base-catalyzed hydrogen peroxide. porosity confirmed to 29% 54% before after sodium dodecyl sulfate (SDS). compressive strengths densities 1.57 MPa 0.75 g/cm3 for GP SDS, 3.63 0.48 with SDS. Through mercury intrusion porosimetry analysis, pores further refined from 100 µm 30 when SDS used, same time, variation pore size minimized, so relatively uniform maintained. In addition, thermal conductivity is 0.0803 W/m·K 33.2 μm, which smaller diameter than containing only As result, although alone sample has excellent conductivity, use surfactant recommended fine micropore control. While reducing non-uniform distribution direct method as an inorganic binder, possibility insulation finish also weight.