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Shrinkage Due to Colloidal Force Interactions

TitleShrinkage Due to Colloidal Force Interactions
Publication TypeConference Proceedings
Year of Publication2015
AuthorsUlm F-J, Pellenq RJean-Marc
EditorHellmich C, Pichler B, Kollegger J
SponsorRILEM American Society of Civil Engineers, Engn Mech Inst American Society of Civil Engineers, French Natl Res Ctr Lafarge
Conference Name10th International Conference on Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures CONCREEP 10
VolumeCONCREEP 10: MECHANICS AND PHYSICS OF CREEP, SHRINKAGE, AND DURABILITY OF CONCRETE AND CONCRETE STRUCTURES
Pagination13-16
Date PublishedSep-17-2015
PublisherAmerican Society of Civil Engineers
Conference LocationSeptember 21–23, 2015, Vienna, AustriaReston, VA
Abstract

It has long been argued that shrinkage in cementitious materials can occur even in the absence of drying phenomena. Herein we argue that such shrinkage is attributable to colloidal forces that develop between C-S-H particles during the hydration in an out-of-equilibrium process. We base our argument on meso-scale simulation results, and show via microporomechanics theory that such colloidal forces can lead to the build-up of solid eigenstresses causing macroscopic shrinkage deformation.

 

DOI10.1061/978078447934610.1061/9780784479346.002
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