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Pro109-2

MECHANICAL ACTIVATION OF SUPPLEMENTARY CEMENTITIOUS MATERIALS IN ORDER TO USE AS HYDRAULIC BINDER



Author(s): Gábor Mucsi, Ákos Debreczeni, Viktor Török
Paper category: Proceedings
Book title: proceedings of the International RILEM Conference on Materials, Systems and Structures
in Civil Engineering Conference segment on Service Life of Cement-Based Materials and Structures
Editor(s): Miguel Azenha, Ivan Gabrijel, Dirk Schlicke, Terje Kanstad and Ole Mejlhede Jensen
ISBN:978-2-35158-171-4
e-ISBN: 978-2-35158-173-5
Publisher: RILEM Publications SARL
Publication year: 2016
Pages: 415-424
Total Pages: 10
Language : English


Abstract: Stirred media mill today is a widely applied device due to its good efficiency in the very fine
(submicron) size range. In spite of this, only few results are reported recently with this mill in
the cement industry. Present paper deals with the investigation of F class fly ash (FA) and
granulated blast furnace slag (GBFS). Mechanical activation experiment of both raw materials
was carried out in a stirred media mill separately for various time.
Ground sample was tested with laser particle size analyzer (LPSA) to determine and calculate
the material fineness (PSD and SSA). Hydraulic binder paste was prepared using ground FA
and GBFS in various portions (0, 25, 50, 75 and 100 %) with lime addition under specific
water/cement ratio. Cubic specimens were produced from paste and uniaxial compressive
strength was measured at the age of 7, 28 and 56 days.
The results of the experiments show the effect of FA and GBFS fineness on the compressive
strength of the resulted binder. Relationships between grinding fineness, FA/GBFS ratio,
material structure and strength were revealed.


Online publication : 2016
Publication type : full_text
Public price (Euros) : 0.00


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