Cited by 55Concrete and Cement Materials ResearchAdvanced X-ray Imaging TechniquesMagnesium Oxide Properties and Applications

The DOI matches its Crossref record; 51 of the 51 references it cites were found in a registry or an index.

Chemistry and Mass Density of Aluminum Hydroxide Gel in Eco-Cements by Ptychographic X-ray Computed Tomography

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Cuesta, Ana, De la Torre, Angeles G., Santacruz, Isabel, Trtik, Pavel, da Silva, Julio C., Diaz, Ana, Holler, Mirko, Aranda, Miguel A. G.·2017·The Journal of Physical Chemistry C

Abstract

Eco-cements are a desirable alternative to ordinary Portland cements because of their lower CO 2 footprints. Some ye’elimite-based eco-cements are attracting a lot of interest. Understanding the reasons for the mechanical performances requires the characterization of features such as mass density of the hydrated component phases, including the amorphous gel, on the submicrometer scale, which is challenging. Here we use ptychographic X-ray computed tomography to provide 3D mass density and attenuation coefficient distributions of eco-cement pastes with an isotropic resolution close to 100 nm allowing to distinguish between component phases with very similar contrast. In combination with laboratory techniques such as the Rietveld method, 27 Al MAS NMR, and electron microscopies, we report compositions and densities of key components. The ettringite and gel volume distributions have been mapped out in the segmented tomograms. Moreover, we discriminate between an aluminum hydroxide gel and calcium aluminum monosulfate, which have close electron density values. Specifically, the composition and mass density of two aluminum hydroxide gel agglomerates have been determined: (CaO) 0.04 Al(OH) 3 ·2.3H 2 O with 1.48(3) g·cm –3 and (CaO) 0.12 Al(OH) 3 with 2.05(3) g·cm –3, which was a long-standing challenge.

Overview

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Crossref · 10.1021/acs.jpcc.6b10048

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51 of 51 references verified0 citation errors · 0 not checkable

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Research works printed but not linked: 2

  1. McCaffrey R., 2002, Global Cement and Lime Magazine Environmental Special Issue, 15
  2. Mehta P. K., 1980, World Cem. Technol., 11, 166

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Metadata

Authors
Cuesta, A., De la Torre, A. G., Santacruz, I., Trtik, P., da Silva, J. C., Diaz, A., Holler, M., & Aranda, M. A. G.
Affiliations
  • ALBA Synchrotron (Spain) (ES)
  • Departamento de Química Inorgánica, Cristalografía y Mineralogía, Universidad de Málaga, 29071-Málaga, Spain
  • Universidad de Málaga (ES)
  • Paul Scherrer Institute (CH)
  • Paul Scherrer Institut, Villigen PSI 5232, Switzerland
  • ALBA Synchrotron, Carrer de la Llum 2-26, E-08290 Cerdanyola del Vallès, Barcelona, Spain
Venue
The Journal of Physical Chemistry C
Published
2017-02-01
Volume
121
Issue
5
Pages
3044-3054
ISSN
  • 1932-7447 (ISSN-L)
  • 1932-7455
OpenAlex
W2572522967
Cited by
55
References
51
Citations by year
2026: 4 · 2025: 7 · 2024: 3 · 2023: 3 · 2022: 2 · 2021: 9 · 2020: 5 · 2019: 9 · 2018: 9 · 2017: 4
FWCI
7.73
Type
journal article
Language
en
Open access
Licence
other-oa
Locations
  • The Journal of Physical Chemistry C (publishedVersion)
  • HAL (acceptedVersion, other-oa)
  • DORA PSI (Paul Scherrer Institute) (submittedVersion, other-oa)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, other-oa)
  • Repositorio Institucional de la Universidad de Málaga (University of Málaga) (submittedVersion)
Funders
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (137772)
  • European Regional Development Fund (BIA2014-57658-C2-1-R, BIA2014-57658-C2-2-R)
  • Ministerio de Economía y Competitividad (BIA2014-57658-C2-1-R, BIA2014-57658-C2-2-R)
Topics
  • Physical Sciences › Engineering › Civil and Structural Engineering › Concrete and Cement Materials Research
  • Physical Sciences › Physics and Astronomy › Radiation › Advanced X-ray Imaging Techniques
  • Physical Sciences › Materials Science › Materials Chemistry › Magnesium Oxide Properties and Applications
Keywords
aluminum hydroxide gel, eco-cement, ye'elimite, ptychographic X-ray computed tomography, mass density, ettringite, amorphous gel, carbon footprint, 27Al MAS NMR, Rietveld refinement

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