Reference : Microstructure and durability of mortars modified with medium active blast furnace slag
Scientific journals : Article
Engineering, computing & technology : Civil engineering
http://hdl.handle.net/2268/67725
Microstructure and durability of mortars modified with medium active blast furnace slag
English
Hadj Sadok, Ahmed mailto [Geomaterials Laboratory, Civil Engineering Department, University of Blida, Algeria > > > >]
Kenaï, Saïd mailto [Geomaterials Laboratory, Civil Engineering Department, University of Blida, Algeria > > > >]
Courard, Luc mailto [Université de Liège - ULg > Département Argenco : Secteur GeMMe > Matériaux de construction non métalliques du génie civil >]
Darimont, Anne mailto [Université de Liège - ULg > Département Argenco : Secteur GeMMe > Matériaux et maintenance en construction >]
2011
Construction & Building Materials
Elsevier Science
25
2
1018-1025
Yes (verified by ORBi)
International
0950-0618
Oxford
United Kingdom
[en] environment ; mortar ; blast furnace slag ; hydraulic activity ; pore structure ; microstructure ; durability ; chloride diffusion
[en] Mechanical characteristics and durability properties of blast furnace slag cement composites largely depend on the hydraulic activity of the slag. In this paper, a Granulated Blast Furnace Slag with a low reactivity index is used in modifying mortar composition. Microstructure and durability of mixes containing 0%, 30% and 50% of slag as substitution to OPC are respectively compared and analyzed. Water porosity, Mercury Intrusion Porosity and pore size distribution are studied after 28, 90 and 360 days of wet curing. A qualitative microstructure analysis of mortars is proposed with Scanning Electron Microscope (SEM). The durability of mortar is evaluated through capillary water absorption and chloride diffusion tests. The results indicate a finer porosity and lower water absorption for slag mortars at old ages (90 and 360 days). Moreover, lower chloride diffusion for 50% blast furnace slag substitution is observed.
Researchers ; Professionals
http://hdl.handle.net/2268/67725

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