PERFORMANCE COMPARISON OF FLYASH AND WOLLASTONITE MICRO-FIBER IN OBTAINING SELF COMPACTING CONCRETE MIXES

Present study aims to find out the role of flyash and Wollastonite micro-fiber in obtaining cheap self compacting concrete for pavements. Workability tests (Abrams flow, V Funnel and J Ring test) have been performed which find out the flow, passability and segregation resistance of trial mixes. Load transfer efficiency test has also been performed with successful mixes on a pavement prototype. It was observed, that both flyash and wollstonite micro-fiber when used alone can't yield self compaction, but with microsilica content upto 5% they do so, provided their content is lesser than 20% each, respectively. Wollastonite reinforced concrete has two times better load transfer efficiency with respect to normal concrete.