Creep of Bulk C-S-H: Insights from Molecular Dynamics Simulations
Author(s)Bauchy, M.; Masoero, E.; Ulm, Franz-Josef; Pellenq, Roland Jm
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Understanding the physical origin of creep in calcium-silicate-hydrate (C-S-H) is of primary importance, both for fundamental and practical interest. Here, we present a new method, based on molecular dynamics simulation, allowing us to simulate the long-term visco-elastic deformations of C-S-H. Under a given shear stress, C-S-H features a gradually increasing shear strain, which follows a logarithmic law. The computed creep modulus is found to be independent of the shear stress applied and is in excellent agreement with nanoindentation measurements, as extrapolated to zero porosity.
DepartmentMassachusetts Institute of Technology. Department of Civil and Environmental Engineering; MultiScale Materials Science for Energy and Environment, Joint MIT-CNRS Laboratory
American Society of Civil Engineers (ASCE)
Bauchy, M., et al. “Creep of Bulk C-S-H: Insights from Molecular Dynamics Simulations.” CONCREEP 10, 21-23 September, 2015, Vienna, Austria, American Society of Civil Engineers, 2015, pp. 511–16.