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Creep of Bulk C-S-H: Insights from Molecular Dynamics Simulations

Lookup NU author(s): Dr Enrico Masoero

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Abstract

Understanding the physical origin of creep in calcium-silicate-hydrate (C-SH) 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.

Publication metadata

Author(s): Bauchy M, Masoero E, Ulm FJ, Pellenq R

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 10th International Conference on Mechanics and Physics of Creep, Shrinkage and Durability of Concrete and Concrete Structures (CONCREEP 10)

Year of Conference: 2015

Pages: 511-516

Print publication date: 01/01/2015

Acceptance date: 01/01/1900

Publisher: American Society of Civil Engineers (ASCE)

URL: http://ascelibrary.org/doi/pdf/10.1061/9780784479346.061

Library holdings: Search Newcastle University Library for this item

ISBN: 9780784479346

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