Improved Reactivity of Fly Ash-Slag Geopolymer by the Addition of Silica Fume

Figure 3

²⁹Si NMR spectra and deconvolution of fly ash-slag geopolymers.

(a) Raw fly ash

(b) Sample C

(c) SF1-10

(d) SF1-20

(e) Z10

(f) HFA

(g) Z10S

(h) SF2-10

(i) SF2-20

(j) SF2-10S

(k) SF2-20S