Original scientific paper

https://doi.org/10.15255/CABEQ.2016.846

Effects of Mud from a Zinc-plating Plant and Zeolite Saturated with Zinc on Portland Cement Hydration and Properties of Hardened Cement Pastes

D. Barbir orcid.org/0000-0002-5298-9004 ; University of Split, Faculty of Chemistry and Technology, Department of Inorganic Technology, Ruđera Boškovića 35, 21000 Split, Croatia
P. Dabić ; University of Split, Faculty of Chemistry and Technology, Department of Inorganic Technology, Ruđera Boškovića 35, 21000 Split, Croatia
A. Lisica ; University of Split, Faculty of Chemistry and Technology, Department of Inorganic Technology, Ruđera Boškovića 35, 21000 Split, Croatia

Abstract

This work investigates the impact of mud from a zinc-plating plant and zeolite saturated with zinc on early hydration processes of ordinary Portland cement. During the first 48 hours of hydration, the addition of mud significantly affects the cement hydration kinetics. The partial replacement of cement with zeolite saturated with zinc ions, reduces the negative impact of mud on the hydration processes. Samples with the additions showed lower compressive strength than the sample without additions. With regard to the standard limits for this type of cement, mud shares are eligible up to 5 wt. % and a mixture of mud and saturated zeolite up to 10 wt. %.

Keywords

ordinary Portland cement; mud from a zinc-plating plant; waste zeolite; TG/DTG; compressive strength

Hrčak ID:

172286

URI

https://hrcak.srce.hr/172286

Publication date:

6.1.2017.

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