Al-27 and Si-29 NMR and XRD characterisation of clinkers: standard phases and new waste based formulations
authors Raupp-Pereira, F; Segadaes, AM; Silva, AS; Rocha, J; Labrincha, JA
nationality International
journal ADVANCES IN APPLIED CERAMICS
author keywords clinker; NMR; XRD; wastes
keywords PORTLAND-CEMENT CLINKER; CERAMIC FORMULATIONS; SPECTROSCOPY; SLUDGE
abstract Al-27 and Si-29 magic angle spinning (MAS) nuclear magnetic resonance (NMR) and powder X-ray diffraction (XRD) studies of Portland type cement clinkers are reported. Common phases in such cements (C2S, C3S, C(3)A and C(4)AF) were prepared with high purity grade chemical reagents to be used as reference, and characterised. Subsequently, clinkers with selected compositions were prepared by combining several industrial wastes and byproducts: Al rich anodising sludge, sludge from the filtration/clarification of potable water, sludge generated in marble sawing processes and foundry sand. The clinkers were found to contain the reference cementitious phases, the two characterisation techniques used ( NMR and XRD) being complementary in the information provided. The general similarity of the major phases formed in waste based and reagent based formulations clearly demonstrates the potential of the use of wastes in cement formulations of industrial interest.
publisher MANEY PUBLISHING
issn 1743-6753
year published 2008
volume 107
issue 1
beginning page 37
ending page 45
digital object identifier (doi) 10.1179/174367607X227954
web of science category Materials Science, Ceramics
subject category Materials Science
unique article identifier WOS:000253094000008
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journal impact factor 1.669
5 year journal impact factor 1.503
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