Abstract:
Self-compacting concrete (SCC)
has become more popular than conventional
concrete owing to its advantages, such as a high
level of consistency, finishability, and flow rate
with the least possible water-cement ratio. So
far, researchers have conducted their research
on self-compacting concrete based on various
factors that may affect the compressive
strength and fresh properties of SCC. Only a
few SCC mix designs consider the impact of
minerals such as rice husk ash (RHA), silica
dust and fly ash. Therefore, this paper looks
forward to assessing the effect of the addition
of RHA on the compressive strength of self compacting concrete with various mixing
designs. To conduct this research, 5 to 14 mm
size aggregates were employed in this research
study. After developing seven SCC mixes,
cement was partially replaced with locally
collected RHA at 5, 10, 15 and 20%,
respectively. In addition, data analysis was
conducted, and experimental results were
carefully monitored using graphical methods
and SPSS software by checking the variation of
compressive strength against different factors
such as RHA percentage, curing period and
water-cement ratio. According to the results, a
higher strength was encountered with 5%
white-ash RHA, which contained more
amorphous silica than carbon.
