An investigation of eggshell powder as potential additive to concrete. In this investigation,
five different percentages of eggshell powder with respect to cement were added into the
concrete mix of Grade 25. The materials used were mainly Portland cement, crushed
sandstone, river sand, plasticing accelerator and eggshell powder. From the investigation,
all the slump results of eggshell concrete were at medium degree of worakability ranging
from 65-75 mm. Eggshell concrete of 10% achieved the highest compressive strength at …