Figure 4
From: Thermal Resistance Variations of Fly Ash Geopolymers: Foaming Responses
SEM micrograph of unexposed (a,b) and temperature-exposed foamed fly ash geopolymers at 200 °C (c,d), 400 °C (e,f), 600 °C (g,h) and 800 °C (i,j).
Figure 4 | Scientific Reports
