The effect of zinc, water to binder ratio and silica fume on the hydration and mechanical properties of Portland cement mixtures

The amount of zinc in the clinker or in the secondary raw materials has been increasing in recent years mainly due to the processing of waste materials containing zinc. The aim of this work is to show the effect of zinc on hydration of Portland cement and mechanical properties. These effects were st...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2019-07, Vol.583 (1), p.12008
Main Authors: Siler, P, Kolarova, I, Bednarek, J, Janca, M, Masilko, J, Novotny, R, Opravil, T
Format: Article
Language:English
Subjects:
Binders (materials)
Cement
Clinker
Hydration
Mechanical properties
Portland cements
Raw materials
Silica fume
Silicon dioxide
Zinc oxide
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Summary:The amount of zinc in the clinker or in the secondary raw materials has been increasing in recent years mainly due to the processing of waste materials containing zinc. The aim of this work is to show the effect of zinc on hydration of Portland cement and mechanical properties. These effects were studied by isoperibol calorimetry and mechanical properties testing. Zinc was added to the cement in the form poorly soluble compound ZnO. The concentration of zinc added was chosen as 1wt. percent. The newly formed compounds during hydration were identified by X-ray diffraction method (XRD). Another objective is to show the effect of silica fume (microsilica, SF) as the secondary raw material and water to binder ratio on hydration of cement in the presence of zinc.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/583/1/012008