Increasing Compressive Strength Property of Bagasse Ash Blended Concrete by Using Chemical Activator (NaSO4)
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Date
2019-11
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Addis Ababa University
Abstract
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.
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Keywords
Chemical Activation