Article (Scientific journals)
Metakaolin
Wang, F.; Kovler, K.; Provis, J. L. et al.
2018In RILEM State-of-the-Art Reports, 25, p. 153-179
Peer reviewed
 

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Keywords :
High-performance concrete; Metakaolin; Properties; Supplementary cementitious material; Sustainability
Abstract :
[en] Metakaolin (MK) is known to be a highly pozzolanic material that can be used in concrete. MK is usually produced by heating kaolin-containing clays, within the temperature range of about 600–900 ℃. This chapter summarizes the utilization of metakaolin in relevant worldwide standards, mainly in Europe and North America. The health, safety and environmental sustainability concerns on using metakaolin as a supplementary cementitious material are also addressed in this chapter. It is reported that MK incorporation has benefits on both early-age and long-term properties. On the other hand, this chapter also reports that the results of heat of hydration and rate of reaction in metakaolin-blended concrete are controversial and need further investigation. Overall, the optimum level of cement replacement by MK is around 10–20%, which provides concrete the maximum strength. Metakaolin appears to have an excellent potential as a supplementary cementitious material in structures made of high-performance concrete, because it controls deleterious expansion due to alkali-silica reaction in concrete (depending on the nature of the aggregate), and reduces the ingress of chloride by improving the microstructure and chloride binding behavior. © RILEM 2018.
Disciplines :
Civil engineering
Author, co-author :
Wang, F.;  Faculty of Civil and Environmental Engineering, Technion—Israel Institute of Technology, Haifa, Israel
Kovler, K.;  Faculty of Civil and Environmental Engineering, Technion—Israel Institute of Technology, Haifa, Israel
Provis, J. L.;  Department of Materials Science and Engineering, University of Sheffield, Sir Robert Hadfield Building, Mappin St, Sheffield, United Kingdom
Buchwald, A.;  ASCEM B.V., Schaarweg 4, Rheden, Netherlands
Cyr, M.;  Université de Toulouse
UPS, Insa
LMDC (Laboratoire Matériaux et Durabilité Des Constructions);  Avenue de Rangueil, Toulouse Cedex 4, France
Patapy, C.;  Université de Toulouse
UPS, Insa
LMDC (Laboratoire Matériaux et Durabilité Des Constructions);  Avenue de Rangueil, Toulouse Cedex 4, France
Kamali-Bernard, S.;  UEB, INSA-Rennes, LGCGM, 20 Avenue Des Buttes de Coësmes, Rennes Cedex 7, France
Courard, Luc  ;  Université de Liège - ULiège > Département ArGEnCo > Matériaux de construction non métalliques du génie civil
Sideris, K.;  Department of Civil Engineering, Democritus University of Thrace, Xanthi, Greece
More authors (3 more) Less
Language :
English
Title :
Metakaolin
Publication date :
2018
Journal title :
RILEM State-of-the-Art Reports
ISSN :
2213-204X
eISSN :
2213-2031
Publisher :
Springer Netherlands
Volume :
25
Pages :
153-179
Peer reviewed :
Peer reviewed
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