The role of water on C-S-H gel shear strength studied by molecular dynamics simulations

Manzano, H., Duque-Redondo, E., Masoero, E., Lopez-Arbeloa, I., Hellmich, C, Pichler, B and Kollegger, J 2015. The role of water on C-S-H gel shear strength studied by molecular dynamics simulations. Presented at: CONCREEP 10: Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures, Vienna, Austria, 21-23 September 2015. Published in: Hellmich, Christian, Pichler, Bernhard and Kollegger, Johann eds. CONCREEP 10: Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures. pp. 899-907. 10.1061/9780784479346.107

Full text not available from this repository.

Abstract

The properties of the cement paste are defined to a high extend by those of the C-S-H gel, and irreversible deformations such as creep and shrinkage are not an exception. It is believed that molecular scale processes play an important role on the stress accumulation and relaxation, and molecular dynamics simulation a great tool to identify and quantify those mechanisms. In this work, we use NEMD simulation to investigate first the effect of the temperature and shear rate on the shear strength, Then, we study the stress development on a C-S-H interface with an increasing distance between adjacent particles. We discuss the results in terms of water, and we define a limiting distance, 1 nm, at which the shear strength is lost.

Item Type:	Conference or Workshop Item (Paper)
Status:	Published
Schools:	Engineering
ISBN:	9780784479346
Last Modified:	06 Jan 2024 02:10
URI:	https://orca.cardiff.ac.uk/id/eprint/144239

Citation Data

Cited 3 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item