Browsing by Author "Lidya, Fekadu"

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    Increasing Compressive Strength Property of Bagasse Ash Blended Concrete by Using Chemical Activator (NaSO4)
    (Addis Ababa University, 2019-11) Lidya, Fekadu; Esayas, Gebreyouhannes (PhD)
    The use of sugar cane bagasse ash is being studied for application in the construction industry because of its technical, economic and to a large extent, environmental advantages. This study has investigated the improvement of early strength development of concrete containing bagasse ash by addition of chemical activator. bagasse replacement is done 10%, 20% and 30% by volume of cement and casted with and without activator. The compressive strength properties of bagasse ash blended cement paste, mortar and concrete with and without activator were studied. The results indicate that bagasse ash blended concrete gives higher strength when activated with sodium sulfate. X- ray diffraction test also held on bagasse ash blended cement paste casted and cured for 7days and 28 days. The result verified the strength improvement is due to increasing the bagasse pozzolanic activity.