Durability Indices of a Sealing Mortar Incorporating Blast Furnace Slag: Comparison with a Commercial Reference

Soumia Ikhaddalene; Amar Irekti; Mehena Oualit

doi:10.3311/PPci.40555

Authors

Soumia Ikhaddalene

Affiliation

Laboratory of Applied Chemistry and Materials (LabCAM), Chemistry Departement, Faculty of Science, University of M'hamed Bougara of Boumerdes, Avenue de l'Indépendance, 35000 Boumerdes, Algeria
Amar Irekti

Affiliation

Laboratory of Applied Chemistry and Materials (LabCAM), Chemistry Departement, Faculty of Science, University of M'hamed Bougara of Boumerdes, Avenue de l'Indépendance, 35000 Boumerdes, Algeria
Mehena Oualit

Affiliation

Laboratory of Applied Chemistry and Materials (LabCAM), Chemistry Departement, Faculty of Science, University of M'hamed Bougara of Boumerdes, Avenue de l'Indépendance, 35000 Boumerdes, Algeria

Abstract

Ground granulated blast furnace slag generated from steel manufacturing presents environmental challenges, but it can be valuable when utilized as a supplementary material in concrete, contributing to the development of sustainable materials. In this research, a new sealing mortar was prepared by substituting 10% of the cement with slag (M10). This material can provide performance comparable to M234, a M0 sealer used for sealing and wedging supports and machine bases. The mechanical properties and durability indices of both M10 and M234 were compared to the reference mortar MISO, which is a laboratory-made mortar free of slag. XRD analysis was conducted to determine the crystallinity of the starting cement, and granulometry revealed a median size distribution of 23 μm for the slag after grinding. Capillary absorption and water-accessible porosity were tested for all samples.