ABSTRACT:

This study presents an evaluation of the physical and mechanical properties and characteristics of steel slagaggregate concrete in comparison with the typical crushed limestone stone aggregate concrete. Hardenedconcrete consist of more than 70% aggregate due to the high demand in building construction and theincrease of the amount of disposed waste material, suppliers and researchers are exploring the use ofalternative materials which could preserve natural sources and save the environment. In this study, steel slagwas used as an aggregate replacement in conventional concrete mixes. Steel slag which is mainly consists ofcalcium carbonate is produced as a by-product during the oxidation process in steel industry. Steel slag wasselected due to its characteristics, which are almost similar to conventional aggregates and the fact that it iseasily obtainable as a by-product of the steel industry. As a result, utilization of steel slag will save naturalresources and clean environment. Furthermore, results have shown that slag aggregate has better abrasionfactor and impact value than conventional aggregate. Thorough investigation of the results have indicatedthat the amount of increase in compressive strength at age of 7 days are much more than that of age 28 daysfor all types of aggregate replacement. This indicates that the added slag could work as accelerator at earlyage while at 28 days age, the effect is reduced. The fine slag replacement scores the highest effect (PDF) Effect of using steel slag aggregate on mechanical properties of concrete. Available from: https://www.researchgate.net/publication/280040508_Effect_of_using_steel_slag_aggregate_on_mechanical_properties_of_concrete#fullTextFileContent [accessed Dec 06 2023].