Influence of Cement Type and Water-to-Cement Ratio on the Formation of Thaumasite
Joint Authors
Source
Advances in Materials Science and Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-07-09
Country of Publication
Egypt
No. of Pages
6
Abstract EN
Cement mortar prisms were prepared with three different cement types and different water-to-cement ratios plus 30% mass of limestone filler.
After 28 days of curing in water at room temperature, these samples were submerged in 2% magnesium sulfate solution at 5°C and the visual appearance and strength development for every mortar were measured at intervals up to 1 year.
Samples selected from the surface of prisms after 1-year immersion were examined by X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy.
The results show that mortars with sulfate resisting Portland cement (SRC) or sulphoaluminate cement (SAC) underwent weaker degradation due to the thaumasite form of sulfate attack than mortars with ordinary Portland cement (OPC).
A lower water-to-cement ratio leads to better resistance to the thaumasite form of sulfate attack of the cement mortar.
A great deal of thaumasite or thaumasite-containing materials formed in the OPC mortar, and a trace of thaumasite can also be detected in SRC and SAC mortars.
Therefore, the thaumasite form of sulfate attack can be alleviated but cannot be avoided by the use of SAC or SRC.
American Psychological Association (APA)
Zhang, Ailian& Zhang, Linchun. 2017. Influence of Cement Type and Water-to-Cement Ratio on the Formation of Thaumasite. Advances in Materials Science and Engineering،Vol. 2017, no. 2017, pp.1-6.
https://search.emarefa.net/detail/BIM-1124728
Modern Language Association (MLA)
Zhang, Ailian& Zhang, Linchun. Influence of Cement Type and Water-to-Cement Ratio on the Formation of Thaumasite. Advances in Materials Science and Engineering No. 2017 (2017), pp.1-6.
https://search.emarefa.net/detail/BIM-1124728
American Medical Association (AMA)
Zhang, Ailian& Zhang, Linchun. Influence of Cement Type and Water-to-Cement Ratio on the Formation of Thaumasite. Advances in Materials Science and Engineering. 2017. Vol. 2017, no. 2017, pp.1-6.
https://search.emarefa.net/detail/BIM-1124728
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1124728