Title | Creep of Bulk C-S-H: Insights from Molecular Dynamics Simulations |
Publication Type | Conference Proceedings |
Year of Publication | 2015 |
Authors | Bauchy M, Masoero E, Ulm F-J, Pellenq RJean-Marc |
Editor | Hellmich C, Pichler B, Kollegger J |
Sponsor | RILEM American Society of Civil Engineers, Engn Mech Inst American Society of Civil Engineers, French Natl Res Ctr Lafarge |
Conference Name | 10th International Conference on Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete StructuresCONCREEP 10 |
Volume | CONCREEP 10: MECHANICS AND PHYSICS OF CREEP, SHRINKAGE, AND DURABILITY OF CONCRETE AND CONCRETE STRUCTURES |
Pagination | 511-516 |
Date Published | Sep-17-2015 |
Publisher | American Society of Civil Engineers |
Conference Location | September 21–23, 2015, Vienna, AustriaReston, VA |
Abstract | 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. |
DOI | 10.1061/978078447934610.1061/9780784479346.061 |