Influence of Linz Donawitz slag aggregates on strength development of concrete

Abstract

This paper aims to present the feasibility of Linz-Donawitz (LD) slag as an alternative for traditional natural aggregates in concrete. The LD slag possesses good physical and mechanical properties as an aggregate and it has been incorporated in concrete as a replacement material for natural fine and coarse aggregates. Both the natural fine and coarse aggregates were partially replaced by LD slag aggregates at 20%, 40%, 60%, 80% and 100% respectively. Concrete of grade M35 was cast, cured and tested with standard specimens following Indian Standard codes to study its mechanical strengths. The test results of compressive strength of concrete with LD slag aggregates are presented in this paper. The results obtained, show that there is an increase in compressive strength of the various grades of concrete with an increase in percentage replacement of natural fine and coarse aggregates with LD slag aggregates.