Carbonation of Blended Binders Containing Metakaolin

  • R. BucherEmail author
  • M. Cyr
  • G. Escadeillas
Conference paper
Part of the RILEM Bookseries book series (RILEM, volume 10)


The pozzolanic materials are often recommended for their very good durability in aggressive environment. Unfortunately, this is not always true and particularly in the case of carbonation by the atmospheric CO2. Although cement replacement by pozzolanic materials causes a decrease in pore size, the pozzolanic reaction consumes portlandite and decreases the protection potential against CO2 ingress. This is the case for most pozzolanic materials, including metakaolin. The aim of this study is first to confirm the literature results of carbonation by using flash metakaolin in partial replacement of cements (CEM I, CEM II A-LL and CEM II A-V). Then the concretes with a metakaolin are compared with concretes based on standardized cement in order to assess the carbonation depth of metakaolin-based concretes and concretes used today in the building construction. Even though the cement replacement of CEM I and CEM II A-V by metakaolin increases the carbonation depth, results are not the same with the CEM II A-LL cement. The interaction of metakaolin with the cement limestone filler can explain this better performance, certainly because the hemicarboaluminate allows slowing down the CO2 propagation through the matrix.


Pozzolanic Reaction Blended Cement Natural Carbonation Carbonation Depth Cement Replacement 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. 1.
    San Nicolas, R.: Approche performantielle des bétons avec métakaolins obtenus par calcination flash, Thesis in french (Toulouse, 2011)Google Scholar
  2. 2.
    Kim, H.S., Lee, S.H., Moon, H.Y.: Strength properties and durability aspects of high strength concrete using Korean metakaolin. Constr. Build. Mater. 21, 1229–1237 (2007)CrossRefGoogle Scholar
  3. 3.
    McPolin, D.O., Basheer, P.A.M., Long, A.E., Grattant, K.T.V., Sun, T.: New test method to obtain pH profiles due to the carbonation of concretes containing supplementary cementitious materials. J. Mater. Civ. Eng. 19, 936–946 (2007)CrossRefGoogle Scholar
  4. 4.
    EN 197-1, ‘Cement-Part 1: composition, specifications and conformity criteria for common cements’ (2001)Google Scholar
  5. 5.
    Salvador, S.: Pozzolanic properties of flash-calcined kaolinite: a comparative study with soak-calcined products. Cem. Concr. Res. 25, 102–112 (1995)CrossRefGoogle Scholar
  6. 6.
    XP P18-458.: Tests for hardened concrete-Accelerated carbonation test-Measurement of the thickness of carbonated concrete (2008)Google Scholar
  7. 7.
    Antoni, M., Rossen, J., Martirena, F., Scrivener, K.: Cement substitution by a combination of metakaolin and limestone. Cem. Concr. Res. 42, 1579–1589 (2012)CrossRefGoogle Scholar
  8. 8.
    Damidot, D., Stronach, S., Kindness, A., Atkins, M., Glasser, F.P.: Thermodynamic investigation of the CaO-Al2O3-CaCO3-H2O closed system at 25 °C and the influence of NaO. Cem. Concr. Res. 24, 563–572 (1994)CrossRefGoogle Scholar
  9. 9.
    Hyvert, N., Sellier, A., Duprat, F., Rougeau, P., Francisco, P.: Dependency of C-S-H carbonation rate on CO2 pressure to explain transition from accelerated tests to natural carbonation. Cem. Concr. Res. 40, 1582–1589 (2010)CrossRefGoogle Scholar
  10. 10.
    Karimpour, M., Belusko, M., Xing, K., Bruno, F.: Minimising the life cycle energy of buildings: review and analysis. Build. Environ. 73, 106–114 (2014)CrossRefGoogle Scholar

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© RILEM 2015

Authors and Affiliations

  1. 1.LMDCUPS—INSA ToulouseToulouseFrance

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