Lime/pozzolan/geopolymer systems: Performance in pastes and mortars

Use of lime as construction material is limited mainly by low initial strength. These properties can be improved adding pozzolanic materials, but the evolution reaction usually needs older ages than 7 days. Alkali-activated or geopolymers, are good-performance materials that produced with residual waste. The combination traditional and new lead to uses mortars. This paper studies a lime/pozzolan geopolymer mixture. chosen pozzolan fluid catalytic cracking catalyst residue (FCC), employed precursor in alkali-activated material. FCC activated two activators: mixture NaOH waterglass; rice husk ash (RHA). were studied microstructure mechanical behaviour terms. results demonstrated lime/pozzolan/geopolymer obtained superior compressive strengths after 1 curing day for corresponding mortar 90 An improvement strength around 145% was achieved 40% compared only at 28