Polymerization of silicate anions was investigated by the molybdate method in cement pastes with water to solid ratio of 0.28. Two series of samples -with and without superplasticizer admixture -were prepared using ordinary portland cement (OPC) in which 0, 5, 10, and 15 percent by weight was replac
The influence of silica fume on the mono/di silicate anion ratio during the hydration of CSF-containing cement paste
✍ Scribed by A. Dureković; K. Popović
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 718 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0008-8846
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✦ Synopsis
The influence of silica fume addition on silicate polymerization during hydration of portland cement pastes was studied. Trimethylsilyl derivatives were identified by gas-liquid chromatography. DTA/TGA method was applied for determination of the free lime content in hydrated paste samples.The obtained results point to the conclusion that pozzolanic reaction causes the shift towards Si-anion dimerization during hydration of csf-blended cement pastes.
📜 SIMILAR VOLUMES
Pastes made from OPC and OPC-silica fume bl.ends,previously investigated by use of the direct TMS method,were studied by using the molybdate method in order to determine changes in polymerization of Si-anions due to hydration and nozzolanic reaction and due to attack of leaching.The results confirm