clinker de portland broyeurs
Spent FCC catalyst was studied as a precursor for geopolymer synthesis. This residue is composed of a mixture of Al 2 O 3 and SiO 2. Tashima et al. (2012b) discovered the high reactivity of FCC by mixing with NaOH/Na 2 SiO 3 solutions. Fig. 13.19 shows that applying 1.19 SiO 2 /Na 2 O molar ratio, 68 MPa were reached after curing for 3 days at ...