Simulation of the Influence of Intrinsic C-S-H Aging on Time-Dependent Relaxation of Hydrating Cement Paste. Academic Article

abstract

• The viscoelastic/viscoplastic behavior of cement paste may occur due to intrinsic calcium silicate hydrate (C-S-H) viscoelasticity/viscoplasticity and cement grain dissolution during the hydration process. A numerical model that combines a microstructure model and a finite element calculation model has been developed to predict the time-dependent behavior of cementitious materials based on these two mechanisms, while incorporating C-S-H intrinsic aging. The simulation results from the model suggest that when considering C-S-H aging, the time-dependent properties of C-S-H are capable of generating the aging effect of cement paste, and can become a significant mechanism leading to the overall relaxation of cement paste.

authors

• Bullard, Jeffrey
• Grasley, Zachary

published proceedings

• Constr Build Mater

author list (cited authors)

• Li, X., Grasley, Z. C., Garboczi, E. J., & Bullard, J. W.

citation count

• 6

complete list of authors

• Li, X||Grasley, ZC||Garboczi, EJ||Bullard, JW

publication date

• December 2017

publisher

• Elsevier  Publisher

published in

• Construction and Building Materials  Journal

keywords

• Aging
• Cement Paste
• Dissolution
• Finite Element Analysis
• Microstructure
• Viscoelastic

PubMed Central ID

• 29887674

Digital Object Identifier (DOI)

• 10.1016/j.conbuildmat.2017.09.178

start page

• 1024

end page

• 1031

volume

• 157

URL

• http://dx.doi.org/10.1016/j.conbuildmat.2017.09.178