Abstract
The pore size distributions of hardened cement pastes were studied in the research reported in this paper in order to investigate whether there was a relationship with the risk of freeze thaw related distress. Mercury intrusion porosimetry (MIP) and cyclic freezing and thawing tests were used to assess cement pastes with different water-to-cement (w/c) ratios and supplementary cementitious materials. Typical pavement mixtures contain a range of pore sizes similar to those in aggregate prone to D-cracking. Such pore sizes are reported to resist drying, thus they may increase saturation and so the risk of damage under freezing and thawing.
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Acknowledgments
The writers would like to acknowledge the financial support from Federal Highway Administration (FHWA) and Transportation Pooled Fund (TPF), along with help and support from CP Tech center lab staff.
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Published In
Journal of Materials in Civil Engineering
Volume 27 • Issue 3 • March 2015
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Jun 6, 2013
Accepted: Feb 5, 2014
Published online: Jul 16, 2014
Discussion open until: Dec 16, 2014
Published in print: Mar 1, 2015
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