Published July 2015 | Version v1
Journal article Metadata-only

Impact of water vapour and carbon dioxide on surface composition of C3A polymorphs studied by X-ray photoelectron spectroscopy

Creators

  • 1. Technische Universität München, Lehrstuhl für Bauchemie, Lichtenbergstr. 4, 85747 Garching bei München (Germany)
  • 2. Institute for Resilient Infrastructure, School of Civil Engineering, University of Leeds, Leeds LS2 9JT (United Kingdom)

Description

The surface specific analytical method, X-ray photoelectron spectroscopy (XPS), has been used to study the effects of water vapour and CO2 on the cubic and orthorhombic polymorphs of C3A. Significant differences between the two polymorphs were observed in the XPS spectra. Upon exposure to water vapour, both polymorphs produced C4AH13 on their surfaces. Additionally, the sodium-doped o-C3A developed NaOH and traces of C3AH6 on its surface. Subsequent carbonation yielded mono carboaluminate on both polymorphs. Large amounts of Na2CO3 also formed on the surface of o-C3A as a result of carbonation of NaOH. Furthermore, the extent of carbonation was much more pronounced for o-C3Ao than for c-C3A

Availability note (English)

Available from http://dx.doi.org/10.1016/j.cemconres.2015.02.026

Additional details

Identifiers

DOI
10.1016/j.cemconres.2015.02.026;
PII
S0008-8846(15)00068-X;

Publishing Information

Journal Title
Cement and Concrete Research
Journal Volume
73
Journal Page Range
p. 36-41
ISSN
0008-8846
CODEN
CCNRAI

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
47045324
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ALUMINIUM OXIDES; CALCIUM OXIDES; CARBON DIOXIDE; DOPED MATERIALS; ELECTRON SPECTRA; ORTHORHOMBIC LATTICES; SODIUM; SODIUM CARBONATES; SODIUM HYDROXIDES; SURFACES; WATER VAPOR; X-RAY PHOTOELECTRON SPECTROSCOPY
Descriptors DEC
ALKALI METAL COMPOUNDS; ALKALI METALS; ALKALINE EARTH METAL COMPOUNDS; ALUMINIUM COMPOUNDS; CALCIUM COMPOUNDS; CARBON COMPOUNDS; CARBON OXIDES; CARBONATES; CHALCOGENIDES; CRYSTAL LATTICES; CRYSTAL STRUCTURE; ELECTRON SPECTROSCOPY; ELEMENTS; FLUIDS; GASES; HYDROGEN COMPOUNDS; HYDROXIDES; MATERIALS; METALS; OXIDES; OXYGEN COMPOUNDS; PHOTOELECTRON SPECTROSCOPY; SODIUM COMPOUNDS; SPECTRA; SPECTROSCOPY; THREE-DIMENSIONAL LATTICES; VAPORS

Optional Information

Copyright
Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.