Cited by 47Concrete and Cement Materials ResearchMagnesium Oxide Properties and ApplicationsZeolite Catalysis and Synthesis

MAS NMR Studies of Partially Carbonated Portland Cement and Tricalcium Silicate Pastes

Thomas, Sabine, Meise‐Gresch, Karin, Müller‐Warmuth, Werner, Odler, Ivan·1993·Journal of the American Ceramic Society

Abstract

29 Si, 27 Al, and 1 H MAS NMR studies of partially carbonated mature ordinary Portland cement (OPC) and tricalcium silicate (C 3 S) pastes have been carried out. The water‐to‐solid ratios ( W/S ) have been varied between 0 and 1 at hydration temperatures of 23 o and 90 o C. Various Q n i units with n =0, 1,2,3, and 4, and a Q 3 (1Al) group have been identified using 29 Si NMR. Cross‐polarization experiments, in addition, have made it possible to assign the OH groups. Two types of fourfold‐ and one type sixfold‐coordinated aluminum have been distinguished using 27 Al NMR. In C 3 S pastes for w/s >0.7, progressive carbonation leads to a nearly perfect three‐dimensional network consisting of Q 3 and Q 4 only. In contrast, in OPC pasted only about 40% of the highly polymerized silicate units are formed, partially copolymerized with AlO 4 tetrahedra.

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Crossref · 10.1111/j.1151-2916.1993.tb08323.x

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Authors
Thomas, S., Meise‐Gresch, K., Müller‐Warmuth, W., & Odler, I.
Affiliations
  • University of Münster (DE)
  • American Ceramic Society (US)
Venue
Journal of the American Ceramic Society
Publisher
Wiley
Published
1993-08
Volume
76
Issue
8
Pages
1998-2004
ISSN
  • 0002-7820 (ISSN-L)
  • 1551-2916
OpenAlex
W2047774707
Cited by
47
References
21
Citations by year
2026: 4 · 2025: 2 · 2024: 4 · 2023: 2 · 2022: 5 · 2021: 6 · 2020: 3 · 2019: 4 · 2018: 1 · 2016: 1 · 2014: 1
FWCI
0.00
Type
journal article
Language
en
Open access
closed
Locations
Journal of the American Ceramic Society (publishedVersion)
Topics
  • Physical Sciences › Engineering › Civil and Structural Engineering › Concrete and Cement Materials Research
  • Physical Sciences › Materials Science › Materials Chemistry › Magnesium Oxide Properties and Applications
  • Physical Sciences › Chemistry › Inorganic Chemistry › Zeolite Catalysis and Synthesis
Keywords
Portland cement, tricalcium silicate, cement paste, silicate polymerization, aluminum coordination, Qn units, silicate network, water-to-solid ratio, hydration temperature, cross-polarization

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