@inproceedings{c6e51663feec4383868bac13d234dd5a,
title = "Nano-porosity as the governing parameter of creep of calcium-silicate-hydrates",
abstract = "The creep properties and nano-porosities of C-S-H (the nanometer-sized building blocks of concrete) were measured by nanoindentation. Such a measurement was made possible by extending indentation analysis to heterogeneous plastic linear-viscoelastic materials. Cement pastes with various mix proportions and processing conditions were tested. On each sample several hundreds of 3-minute-long indentation creep tests were performed. At the nanoscale all C-S-H phases exhibited a creep that was logarithmic with respect to time. The amplitude of this creep is inversely proportional to a modulus which we named contact creep modulus. The contact creep modulus governing the C-S-H creep rate (∼1/t) scaled uniquely with the nano-porosity of the indented C-S-H, independent on mix proportions and processing conditions.",
author = "M. Vandamme and Ulm, \{F. J.\}",
year = "2009",
month = jan,
day = "1",
language = "English",
series = "Poromechanics IV - 4th Biot Conference on Poromechanics",
publisher = "DEStech Publications",
pages = "746--751",
editor = "Ling, \{Hoe I.\} and Andrew Smyth and Raimondo Betti",
booktitle = "Poromechanics IV - 4th Biot Conference on Poromechanics",
note = "4th Biot Conference on Poromechanics ; Conference date: 08-06-2009 Through 10-06-2009",
}