Evaluation of conductive concrete made with steel slag aggregates
N. Santillán, S. Speranza, J.M. Torrents, Ignacio Segura
Abstract
The incorporation of black steel slag (waste from steel production) in concrete responds to a greater awareness of sustainability. In addition, it is capable of increasing electrical conductivity. The objective of this work is to achieve multifunctional concretes with higher mechanical performance and which can modify the electrical characteristics. In this work, natural aggregates have been replaced by different aggregates of steel slags from Spanish industries and the mechanical characteristics of compression, modulus of elasticity, indirect traction and electrical characteristics of these concretes have been studied with respect to reference mixtures. Encouraging results have been obtained for concrete with slag and metallic fibers, improving the electrical conductive capacity by almost 70% and improving the mechanical performance by 14%.