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September 29, 2025

Improvements in Aggregate-Paste Interface by the Hydration of Steelmaking Waste in Concretes and Mortars

Abstract
The study evaluates self-compacting concretes where part of the limestone aggregate is replaced with granulated blast furnace slag (GBFS) at 0–60%. Early-age mixes with higher GBFS show lower compressive strength due to poorer aggregate compaction, but long-term strength increases as the slag hydrates/reacts, improving the aggregate–paste interface.

Type of publication
Journal paper.

Publisher
Materials (MDPI), 12(7), Article 1147; published 9 April 2019.

DOI
10.3390/ma12071147.