A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Dynamic crossover in hydration water of curing cement paste: the effect of superplasticizer
The influence of a new comb-shaped polycarboxylate-based superplasticizer (CSSP)on the hydration kinetics and transport properties of aged cement pastes hasbeen investigated by high-resolution quasi-elastic neutron scattering (QENS) andlow temperature differential scanning calorimetry (LT-DSC). A new method of analysis of QENS spectra is proposed. By applying the refined method we were ableto access to four independent physical parameters including the self-diffusioncoefficient of the hydration water confined in the cement paste. Mean squareddisplacement (MSD) of the hydrogen atom for mobile water molecules displays a dynamiccrossover temperature in agreement with DSC data. The experimental resultsindicate that CSSP polymer added into cement paste moderates the hydrationprocess and decreases the dynamic crossover temperature of the hydration water.
Dynamic crossover in hydration water of curing cement paste: the effect of superplasticizer
The influence of a new comb-shaped polycarboxylate-based superplasticizer (CSSP)on the hydration kinetics and transport properties of aged cement pastes hasbeen investigated by high-resolution quasi-elastic neutron scattering (QENS) andlow temperature differential scanning calorimetry (LT-DSC). A new method of analysis of QENS spectra is proposed. By applying the refined method we were ableto access to four independent physical parameters including the self-diffusioncoefficient of the hydration water confined in the cement paste. Mean squareddisplacement (MSD) of the hydrogen atom for mobile water molecules displays a dynamiccrossover temperature in agreement with DSC data. The experimental resultsindicate that CSSP polymer added into cement paste moderates the hydrationprocess and decreases the dynamic crossover temperature of the hydration water.
Dynamic crossover in hydration water of curing cement paste: the effect of superplasticizer
Li, Hua (author) / Chiang, Wei-Shan (author) / Fratini, Emiliano (author) / Ridi, Francesca (author) / Bausi, Francesco (author) / Baglioni, Piero (author) / Tyagi, Madhu (author) / Chen, Sow-Hsin (author)
Journal of Physics: Condensed Matter ; 24 ; 064108/1-064108/7
2012
7 Seiten, 17 Quellen
Article (Journal)
English
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