Water dynamics in cement pastes
β Scribed by L.P Aldridge; H.N Bordallo; A Desmedt
- Book ID
- 108238508
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 173 KB
- Volume
- 350
- Category
- Article
- ISSN
- 0921-4526
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π SIMILAR VOLUMES
Clinkers of nominal Czechoslovak production were ground in presence of grinding aid (d~rivative of lignin) to specific surfaces 400 -2700 m-/kg and were processed in presence of sodium Zignosulfonate and alkali carbonate (resp. bicarbonate) into pastes and mortars with low water-to-cement ratio. The
Dielectric amplification (dielectric constants >80) is observed in cement pastes at early ages. Standard nonlinear least squares fitting routines yield artificially large "capacitances" when constant phase elements are employed. Instead, capacitance vs. frequency analysis provides reliable evidence