Linking stability characteristics to material performance of self-consolidating concrete-equivalent-mortar incorporating fly ash and metakaolin

Test results indicate that binder composition have substantial influence on dynamic and static stability. Based on the established correlation between stability and overall performance, SCCEMs with a higher segregation index (SI) values are expected to have lower fresh and hardened properties. A ternary combination of 25% FA and 25% MK with a SI value of 5 achieved the highest overall material performance among the tested binary and ternary cementitious systems. The slump flow and V-funnel flow time tests are shown to be an efficient tool for controlling static segregation of mixtures. Mixtures with higher level of fluidity and lower flow time exhibited lower segregation resistance.