Electric Arc Furnace (EAF) slag, a by-product of the steelmaking industry, also serves as a highquality aggregate material for structural concrete production. In this research, its use is proposed
as a Dry-Shake Hardener (DSH), in substitution of quartz, in concrete paving top coatings. Three
concrete paving slab kinds were produced using EAF: one without fibers, another with metallic
fibers; and the third with synthetic fibers. Half of each slab was coated with a classical cementquartz mix and the other half with a novel cement-slag mix. After four years of outdoor aging
at the city of Burgos, Spain, the slabs were visually inspected and no significant differences were
found between the two coated materials. Impact, skid, and abrasion resistance tests were carried
out and showed similar results for both types of coating courses. The result of both the short and
long-term water absorption test results indicated, firstly, no short-term water absorption in both
cases and, secondly, lower long-term water absorption in the quartz-cement mix. Finally,
observation of the oil stain resistance tests on the top coatings led to the conclusion that the
cleaning ability is very good. Analyzing all the results, it may be concluded that a new application
for EAF slag have been found, it is a suitable material for use as a DSH for coating concrete paving
slabs.
