Influence of the Nature and Rate of Alkaline Activator on the Physicochemical Properties of Fly Ash-Based Geopolymers

Figure 8

The photographs of geopolymers specimens cared for at different temperatures. (a) 200°C. (b) 400°C. (c) 600°C. (d) 800°C.

(a)

(b)

(c)

(d)