STRUCTURAL ASSESSMENT OF FOAMED CONCRETE CONTAINING STEEL SLAG AS PARTIAL REPLACEMENT OF SAND

Abstract

In this study, the potential of foamed concrete, in which river dredged sand is replaced with
pulverized steel slag, as structural material was investigated. The variables are: pulverized steel
slag content (0%, 10%, 20%, 30%, 40% and 50%), curing methods (air and water) and curing
ages (7, 14, 21 and 28 days). Total of one and forty four (144) 150mm cube specimens were used
for the determination of both the compressive strength and the density of the foamed concrete at
the testing days. The results show that 30% steel slag replacement level gave a maximum of
20.3% increase in compressive strength at zs': day for air-cured cube specimens. Generally, the
air-cured specimens showed higher compressive strength than water cured specimens at all ages.