...Influence of activated drinking-water treatment waste on...

来自 : digital.csic.es/handle/10261/9 发布时间：2021-03-25

dc.identifier.citationComposites: Part B 60, 14–20; (2014)es_ESdc.identifier.urihttp: hdl.handle.net 10261 92227-dc.description.abstractDrinking water treatment plants regularly dispose of large volumes of industrial sludge in landfill sites, which often has negative environmental consequences. The calcination products of these kaolinite-based sludges have properties that could make them appropriate supplementary cementing materials in the production of blended binary cements. This research analyses the pozzolanic and thermodynamic properties of a Venezuelan drinking water sludge activated at 600 C for 2 h and its behavior in blended cement matrices prepared with 15% Activated Waste (AW) and 85% Ordinary Portland Cement (OPC). Our results show that this activated drinking water sludge presents high pozzolanic properties, mainly during the first 24 h of reaction. The XRD, SEM EDX and thermodynamic studies confirm the formation of C2ASH8, C–S–H gels and C4AH13 as the hydration products from the pozzolanic reaction. The binary mixture of 15% AW 85% OPC complied with the physical and mechanical specifications contained in current European cement standards.es_ESdc.language.isoenges_ESdc.publisherElsevieres_ESdc.rightsopenAccesses_ESdc.subjectRecyclinges_ESdc.subjectChemical propertieses_ESdc.titleInfluence of activated drinking-water treatment waste on binary cement-based composite behavior: Characterization and propertieses_ESdc.typeartículoes_ESdc.identifier.doihttp: dx.doi.org 10.1016 j.compositesb.2013.12.020-dc.description.peerreviewedPeer reviewedes_ESdc.relation.publisherversionhttp: dx.doi.org 10.1016 j.compositesb.2013.12.020es_ESAparece en las colecciones: (IETCC) Artículos
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