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Reuse of waste material "waste sludge water" from a concrete plant in cement composites: A case study

dc.contributor.authorKlus, Lukáš
dc.contributor.authorVáclavík, Vojtěch
dc.contributor.authorDvorský, Tomáš
dc.contributor.authorSvoboda, Jakub
dc.contributor.authorBotula, Jiří
dc.date.accessioned2019-12-06T08:39:35Z
dc.date.available2019-12-06T08:39:35Z
dc.date.issued2019
dc.identifier.citationApplied Sciences. 2019, vol. 9, issue 21, art. no. 4519.cs
dc.identifier.issn2076-3417
dc.identifier.urihttp://hdl.handle.net/10084/139015
dc.description.abstractThis paper presents the results of research dealing with the use of recycled waste sludge water from a concrete plant (CP) as partial or complete replacement of mixing water in cement mixtures. The need to recycle waste sludge water generated as a by-product (waste sludge water) during the production of fresh concrete in the concrete plant results from the environmental and economic problems associated with the operation of the concrete plant. Mixing water was replaced with recycled waste sludge water in the amount of 25%, 50%, 75%, and 100%. In order to determine the effect of partial or complete replacement of mixing water with waste sludge water from the concrete plant in the production of cement composites, laboratory tests of waste sludge water were carried out to determine whether the waste sludge water complies with the requirements for mixing water defined in CSN EN 1008. The tests also determined the properties of fresh cement mortar and hardened cement composites. These were tests of the beginning and end of cement mortar setting, and the strength characteristics (flexural strength, compressive strength). The results of these tests show that it is possible to replace the mixing water by waste sludge water from the concrete plant in the amount of up to 25% without significantly affecting the tested properties, in comparison with the formula containing pure mixing water.cs
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofseriesApplied Sciencescs
dc.relation.urihttps://doi.org/10.3390/app9214519cs
dc.rights© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectreplacementcs
dc.subjectmixing watercs
dc.subjectwaste sludge watercs
dc.subjectconcrete plantcs
dc.subjectcementcs
dc.subjectcompositescs
dc.titleReuse of waste material "waste sludge water" from a concrete plant in cement composites: A case studycs
dc.typearticlecs
dc.identifier.doi10.3390/app9214519
dc.rights.accessopenAccesscs
dc.type.versionpublishedVersioncs
dc.type.statusPeer-reviewedcs
dc.description.sourceWeb of Sciencecs
dc.description.volume9cs
dc.description.issue21cs
dc.description.firstpageart. no. 4519cs
dc.identifier.wos000498058600044


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© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.
Kromě případů, kde je uvedeno jinak, licence tohoto záznamu je © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.