Buildings 2017, 7(4), 120; https://doi.org/10.3390/buildings7040120
The Utilization of Waste Water from a Concrete Plant in the Production of Cement Composites
1
Institute of Environmental Engineering, Faculty of Mining and Geology, VSB-Technical University of Ostrava, 70833 Ostrava, Czech Republic
2
Institute of Clean Technologies for Mining and Utilization of Raw Materials for Energy Use, Faculty of Mining and Geology, VSB-Technical University of Ostrava, 70833 Ostrava, Czech Republic
*
Author to whom correspondence should be addressed.
Received: 19 November 2017 / Revised: 14 December 2017 / Accepted: 18 December 2017 / Published: 20 December 2017
(This article belongs to the Special Issue Sustainable Building Materials)
Abstract
This article presents the results of a study dealing with the utilization of sludge water from a concrete plant as a partial replacement for mixing water in the production of cement composites. The replacement of mixing water with sludge water from a concrete plant was carried out in the amounts of 20% and 50%. The following tests were carried out in order to determine the effect of the replacement of mixing water with sludge water from a concrete plant on the physical and mechanical properties of the cement composites: cement mortar consistency, beginning and end of setting, strength characteristics (compressive strength and flexural strength), and thermal properties. The measured values of the strength characteristics of the test specimens after 28 days of age confirm the possibility of replacing mixing water with sludge water from a concrete plant without significantly reducing the compressive and flexural strength. View Full-TextKeywords:
sludge water; concrete; composite; testing
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Klus, L.; Václavík, V.; Dvorský, T.; Svoboda, J.; Papesch, R. The Utilization of Waste Water from a Concrete Plant in the Production of Cement Composites. Buildings 2017, 7, 120.
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