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ŠILER, P. KOLÁŘOVÁ, I. NOVOTNÝ, R. MÁSILKO, J. BEDNÁREK, J. JANČA, M. KOPLÍK, J. HAJZLER, J. MATĚJKA, L. MARKO, M. POKORNÝ, P. OPRAVIL, T. ŠOUKAL, F.
Original Title
Application of Isothermal and Isoperibolic Calorimetry to Assess the Effect of Zinc on Hydration of Cement Blended with Slag.
Type
journal article in Web of Science
Language
English
Original Abstract
This work deals with the influence of zinc on cement hydration. The amount of zinc in cement has increased over recent years. This is mainly due to the utilization of solid waste and tires, which are widely used as a fuel in a rotary kiln. Zinc can also be introduced to cement through such secondary raw materials as slag, due to increased recycling of galvanized materials. The aim of this work was to determine the effect of zinc on the hydration of Portland cement, blended with ground blast furnace slag (GBFS). This effect was studied by isothermal and isoperibolic calorimetry. Both calorimetry methods are suitable for measurements during the first days of hydration. Isoperibolic calorimetry monitors the hydration process in real-life conditions, while isothermal calorimetry does so at a defined chosen temperature. Zinc was added to the cement in the form of two soluble salts, namely Zn(NO3)(2), ZnCl2, and a poorly soluble compound, ZnO. The concentration of added zinc was chosen to be 0.05, 0.1, 0.5, and 1mass percent. The amount of GBFS replacement was 15% of cement dosage. The newly formed hydration products were identified by X-ray diffraction method (XRD).
Keywords
Portland cement; zinc; isothermal calorimetry; isoperibolic calorimetry; ground blast furnace slag
Authors
ŠILER, P.; KOLÁŘOVÁ, I.; NOVOTNÝ, R.; MÁSILKO, J.; BEDNÁREK, J.; JANČA, M.; KOPLÍK, J.; HAJZLER, J.; MATĚJKA, L.; MARKO, M.; POKORNÝ, P.; OPRAVIL, T.; ŠOUKAL, F.
Released
10. 9. 2019
Publisher
MDPI
Location
Switzerland
ISBN
1996-1944
Periodical
Materials
Year of study
12
Number
18
State
Swiss Confederation
Pages from
1
Pages to
Pages count
URL
https://www.mdpi.com/1996-1944/12/18/2930
Full text in the Digital Library
http://hdl.handle.net/11012/180681
BibTex
@article{BUT158608, author="Pavel {Šiler} and Iva {Šilerová} and Radoslav {Novotný} and Jiří {Másilko} and Jan {Bednárek} and Martin {Janča} and Jan {Koplík} and Jan {Hajzler} and Lukáš {Matějka} and Michal {Marko} and Přemysl {Pokorný} and Tomáš {Opravil} and František {Šoukal}", title="Application of Isothermal and Isoperibolic Calorimetry to Assess the Effect of Zinc on Hydration of Cement Blended with Slag.", journal="Materials", year="2019", volume="12", number="18", pages="1--18", doi="10.3390/ma12182930", issn="1996-1944", url="https://www.mdpi.com/1996-1944/12/18/2930" }