Fig. 8
From: Sustainable alkali activated binders from a blend of biomass ash and iron sludge precursor
X-ray diffraction patterns of alkali activated BFA with IS after 90 days of hydration. Q – quartz, SiO2 (77–1060); P – portlandite, Ca(OH)2 (44–1481); K – calcium silicate hydrate, Ca1.5SiO3.5x H2O (33–306); S – sodium carbonate hydrate Na2CO3(H2O) (70–845); Z – calcium aluminum silicate hydrate Ca5.57 Al12.3 Si12 O49.2 H2.34 (76–1507); X – calcium aluminum oxide carbonate sulfide hydrate Ca4Al2O6(CO3)0.67(SO3)0.33·11H2O (41–476).
