Effect of some liquefying agents on properties and hydration of portland cement and tricalcium silicate pastes
β Scribed by I. Odler; Th. Becker
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 594 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0008-8846
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β¦ Synopsis
The effect of a melamine sulfonate resin, anaphthalene sulfonate resin and a sulfonated lignin on the rheological properties and the hydration of portland cement and tricalcium silicate pastes was studied. In addition to improving the flow properties of the pastes all three substances retarded the hydration of C3S and altered the stoichiometric composition of the CSH-phase formed. The rate of ettringite formation was altered by the agents differently in two different cements studied.
π SIMILAR VOLUMES
On a series of fully hydrated OPC pastes hydrated at two temperatures (20 and 90 Β°C) and on tricalcium silicate pastes hydrated at 20 o the bound water, chemical shrinkage and density of hydrates were determined. Significant differences were found between the compared groups of materials with respec