Investigation of Early Cement Paste with 1H Low-Field NMR

Investigation of Early Cement Paste with 1H Low-Field NMR

Early cement paste (0h-6h) made with cement of different Blain specific surface area was investigated with 23MHz 1H low-field NMR. T2 distribution, T2 against age and T2 distributions against age were obtain. Results showed: 1) T2 distribution of fresh cement paste made with cement of common Blain s...

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Veröffentlicht in:Key engineering materials 2013-01, Vol.539, p.5-9
Hauptverfasser: Yu, Yang, Yang, Pei Qiang, Sun, Zhen Ping, Li, Qi
Format: Artikel
Sprache:eng
Schlagworte:
Age
Cements
Evolution
Flocculating
Hydration
Nuclear magnetic resonance
Pastes
Specific surface
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Zusammenfassung:Early cement paste (0h-6h) made with cement of different Blain specific surface area was investigated with 23MHz 1H low-field NMR. T2 distribution, T2 against age and T2 distributions against age were obtain. Results showed: 1) T2 distribution of fresh cement paste made with cement of common Blain specific surface area has two peaks and corresponded to water within flocculation and among flocculation; 2)T2 against age could reflect a stage-like behaviour of cement hydration; 3) T2 distributions against age showed evolution of microstructure in early cement paste.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.539.5