Influence of metakaolin addition on autogenous and total shrinkage of cement matrix materials

openaccess, Vol. 604 (12) 2022 / wtorek, 27 grudnia, 2022

(Open Access)

DOI: 10.15199/33.2022.12.33

Zieliński Adam, Wolka Paweł, Żebrowski Wojciech. 2022. Influence of metakaolin addition on autogenous and total shrinkage of cement matrix materials. Volume 604. Issue 12. Pages 125-130. Article in PDF file

Accepted for publication: 23.11.2022 r.

The paper presents the results of research on the use of metakaolin as a supplementary material in the composition of the cement binder in order to improve the performance properties of cement composites. Cement with metakaolin replacement were used in the research in amount of: 10 and 25% by weight of cement with a constant water-binder ratio. The properties of cement materials were assessed by testing the consistency using the flow tablemethod;measuring the compressive and flexural strength during 2, 7 and 28 days of maturation, testing total shrinkage using Graf-Kaufmanmethod and research of autogenous shrinkagewith laser deformation measurement. The automatic measurement of shrinkage was carried out for 28 days. Results showed that increase in content of metakaolin in composition of cement binder decreased total shrinkage, while it increased autogenous shrinkage. The use of metakaolin slowed down the initial dynamics of developmentof mechanical properties, while after 28 days of maturation, an increase in strength parameters of tested cement mortars with additive was observed.
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dr inż. Adam Zieliński, Zachodniopomorski Uniwersytet Technologiczny, Wydział Budownictwa i Inżynierii Środowiska ORCID: 0000-0001-7949-1831
dr inż. Paweł Wolka, ASTRA Technologia Betonu Sp. z o.o. ORCID: 0000-0001-7921-720X
dr inż. Wojciech Żebrowski, ASTRA Technologia Betonu Sp. z o.o. ORCID: 0000-0003-1759-4688

dr inż. Adam Zieliński, Zachodniopomorski Uniwersytet Technologiczny, Wydział Budownictwa i Inżynierii Środowiska ORCID: 0000-0001-7949-1831

adam.zielinski@zut.edu.pl

Full paper:

DOI: 10.15199/33.2022.12.33

Article in PDF file