Hexagonal ice in hardened cement

作者: Erland M. Schulson , Ian P. Swainson , Thomas M. Holden , Charles J. Korhonen

DOI: 10.1016/S0008-8846(99)00229-X

关键词:

摘要: Abstract Neutron diffraction from nearly saturated cement paste (made D 2 O, water / ratio = 0.36 , hardened 3 months under lime-saturated O) has shown that the pore transformed mainly to hexagonal ice (Ih) upon slow cooling below (bulk) equilibrium freezing point of heavy (276.8°K). The amount increased continuously 227°K, and then decreased heating. At every temperature 276.8°K, content was greater heating than cooling. results were used calculate size distribution, which ranged between a diameter 30 nm.

参考文章(12)
C le Sage de Fontenay, EJ Sellevold, Ice Formation in Hardened Cement Paste—1. Mature Water-Saturated Pastes ASTM special technical publications. pp. 425- 438 ,(1980) , 10.1520/STP36078S
Maurice Brun, André Lallemand, Jean-François Quinson, Charles Eyraud, A new method for the simultaneous determination of the size and shape of pores: the thermoporometry Thermochimica Acta. ,vol. 21, pp. 59- 88 ,(1977) , 10.1016/0040-6031(77)85122-8
G. Fagerlund, Determination of pore-size distribution from freezing-point depression Materials and Structures. ,vol. 6, pp. 215- 225 ,(1973) , 10.1007/BF02479036
Ian P. Swainson, Martin T. Dove, Low-frequency floppy modes in β-cristobalite Physical Review Letters. ,vol. 71, pp. 193- 196 ,(1993) , 10.1103/PHYSREVLETT.71.193
J-C Li, DK Ross, MJ Benham, None, Small-Angle Neutron Scattering Studies of Water and Ice in Porous Vycor Glass Journal of Applied Crystallography. ,vol. 24, pp. 794- 802 ,(1991) , 10.1107/S0021889891001929
Martin T. Dove, Mark J. Harris, Alex C. Hannon, John M. Parker, Ian P. Swainson, Manoj Gambhir, Floppy Modes in Crystalline and Amorphous Silicates Physical Review Letters. ,vol. 78, pp. 1070- 1073 ,(1997) , 10.1103/PHYSREVLETT.78.1070
George W Scherer, Crystallization in pores Cement and Concrete Research. ,vol. 29, pp. 1347- 1358 ,(1999) , 10.1016/S0008-8846(99)00002-2
D. C. Steytler, J. C. Dore, C. J. Wright, Neutron diffraction study of cubic ice nucleation in a porous silica network The Journal of Physical Chemistry. ,vol. 87, pp. 2458- 2459 ,(1983) , 10.1021/J100237A003
M. Dunn, J.C. Dore, P. Chieux, Structural studies of ice formation in porous silicas by neutron diffraction Journal of Crystal Growth. ,vol. 92, pp. 233- 238 ,(1988) , 10.1016/0022-0248(88)90454-X