Re-Examining the Influence of the Inclusion Characteristics on the Drying Shrinkage of Cementitious Composites
The addition of aggregates to cement paste is known to alter its shrinkage, in relation to the aggregate stiffness and volume fraction. This study reexamines the effects of aggregate volume, and stiffness on shrinkage experienced upon 1st and 2nd drying, by cement pastes across a range of w/c (water-to-cement ratio, mass basis). Focus is paid to understand the influence of the volume fraction and properties of inclusions on the shrinkage response. By unifying shrinkage and mass loss relations with sorption isotherms, the moisture transport properties are extracted as a function of drying time and external relative humidity (RH).
G. Egan et al., "Re-Examining the Influence of the Inclusion Characteristics on the Drying Shrinkage of Cementitious Composites," Construction and Building Materials, vol. 146, pp. 713 - 722, Elsevier Ltd, Aug 2017.
The definitive version is available at https://doi.org/10.1016/j.conbuildmat.2017.04.048
Materials Science and Engineering
Keywords and Phrases
Drying; Elastic modulus; Inclusions; Moisture diffusion; Shrinkage; Transport
International Standard Serial Number (ISSN)
Article - Journal
© 2017 Elsevier Ltd, All rights reserved.
01 Aug 2017
The authors acknowledge financial support for this research from the University of California, Los Angeles (UCLA) and National Science Foundation (CMMI: 1066583 and 1130028).