Mechanical and durability performance of concretes produced with steel slag aggregate and mineral admixtures.
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Date
2022
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Abstract
The steel slag is a residue for the steel industry that is already applied in many cement-based composites,
although there is a lack of studies on the durability of this material in aggressive environments. This work
evaluated the durability against chloride attack of concrete produced using steel slag as aggregate and mineral
admixture, called steel slag powder. For comparison purposes, reference concretes using conventional aggregates
and commercial mineral admixtures (silica fume and metakaolin) were produced. The concretes produced with
steel slag aggregates and steel slag powder had lower chloride penetration depths compared to conventional
ones. The steel slag powder presented an ability similar to silica fume of forming Friedel salt. The concrete
produced with steel slag aggregates also presented a smaller water absorption and a higher compressive/tensile
strength compared to the reference one. In general, this research observed that steel slag concretes are techni-
cally feasible options for the construction sector.
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Chloride penetration
Citation
COSTA, L. C. B. et al. Mechanical and durability performance of concretes produced with steel slag aggregate and mineral admixtures. Construction and Building Materials, v. 318, 2022. Disponível em: <https://www.sciencedirect.com/science/article/pii/S0950061821038848>. Acesso em: 29 abr. 2022.