Metakaolin in the formulation of UHPC
| Autor: | Thierry Vidal, Soltane Lebaili, Ahmed Tafraoui, Gilles Escadeillas |
|---|---|
| Přispěvatelé: | Laboratoire Matériaux et Durabilité des constructions (LMDC), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT), Université des Sciences et de la Technologie Houari Boumediene = University of Sciences and Technology Houari Boumediene [Alger] (USTHB), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA), Laboratory of Sciences and Engineering of Materials |
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
Materials science
Silica fume 0211 other engineering and technologies 02 engineering and technology Superplasticizer 021105 building & construction Kaolinite General Materials Science Composite material Process engineering Metakaolin Civil and Structural Engineering Cement business.industry Machine parts Building and Construction 021001 nanoscience & nanotechnology Durability Fibers [SPI.GCIV]Engineering Sciences [physics]/Civil Engineering UHPC Ultra fine 0210 nano-technology business |
| Zdroj: | Construction and Building Materials Construction and Building Materials, 2009, 23 (2), pp.669-674. ⟨10.1016/j.conbuildmat.2008.02.018⟩ Construction and Building Materials, Elsevier, 2009, 23 (2), pp.669-674. ⟨10.1016/j.conbuildmat.2008.02.018⟩ |
| ISSN: | 0950-0618 |
| DOI: | 10.1016/j.conbuildmat.2008.02.018⟩ |
| Popis: | International audience; Silica fumes have characteristics that make them exceptional in cement matrices and, in particular, in UHPC. Nevertheless, they have important disadvantages: lack of availability, cost and color. The search for substitute products thus appears important if the use of UHPC is to become more widespread in the concrete industry, e.g. in the fields of mechanical engineering (machine parts, tools, molds, etc.) and civil engineering (pipes for water or waste water conveyance for example).The substitute product used in this study was metakaolin obtained by fixed-bed calcination. It proved to be almost equivalent to silica fume in terms of mechanical properties and durability. Kaolinite, the clay from which metakaolin is produced, readily available in most countries, so the price of this ultra fine is acceptable. Moreover, its white color gives it an esthetic advantage. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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