Detail publikace

The synthesis and characterization of an expansive admixture for M-type cements I. The influence of free CaO to the formation of ettringite

OPRAVIL, T. PTÁČEK, P. ŠOUKAL, F. HAVLICA, J. BRANDŠTETR, J.

Originální název

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

The hydration process of expansive admixtures for M-type of expansive or shrinkage compensation cements was studied by thermal analysis supplemented by infrared spectroscopy and X-ray diffraction. The main attention was focused on ettringite formation and on the influence of lime content upon the process. The behaviour of expansive admixture during hydration is significantly affected by the content of lime. The increasing content of lime slows down the rate of ettringite formation and supports the formation of monosulphate (AFm phase) that can be transformed afterwards into ettringite during hardening process. This process may produce better expansion effect because of better transfer of expansion stress after the setting of the paste

Klíčová slova

Expansive admixture, Expansive additives, Anhydrite, Ettringite, Monosulphate.

Autoři

OPRAVIL, T.; PTÁČEK, P.; ŠOUKAL, F.; HAVLICA, J.; BRANDŠTETR, J.

Rok RIV

2012

Vydáno

18. 7. 2012

Nakladatel

Springer Netherlands

Místo

Maďarská republika

ISSN

1388-6150

Periodikum

Journal of Thermal Analysis and Calorimetry

Ročník

2012

Číslo

Stát

Maďarsko

Strany od

Strany do

Strany počet

BibTex

@article{BUT95628,
  author="Tomáš {Opravil} and Petr {Ptáček} and František {Šoukal} and Jaromír {Havlica} and Jiří {Brandštetr}",
  title="The synthesis and characterization of an expansive admixture for M-type cements I. The influence of free CaO to the formation of ettringite",
  journal="Journal of Thermal Analysis and Calorimetry",
  year="2012",
  volume="2012",
  number="7",
  pages="1--10",
  issn="1388-6150"
}