Henkensiefken, R.
, Briatka, P.
, Bentz, D.
, Nantung, T.
and Weiss, J.
(2010),
Plastic Shrinkage Cracking in Internally Cured Mixtures Made with Pre-wetted Lightweight Aggregate, Concrete International, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=901532
(Accessed January 15, 2025)
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Plastic Shrinkage Cracking in Internally Cured Mixtures Made with Pre-wetted Lightweight Aggregate
Published
Author(s)
Ryan Henkensiefken, Peter Briatka, , Tommy Nantung, Jason Weiss
Abstract
The incorporation of pre-wetted lightweight aggregates (LWA) has been used to reduce the shrinkage cracking associated with self-desiccation in the hardened state. Little research however exists which shows the influence of internal curing on the formation of plastic shrinkage cracks. The paper presents a background on the formation of plastic shrinkage cracks and then presents results from a study that examined mortar and concrete systems with pre-wetted LWA. Specifically the results indicate that the incorporation of pre-wetted LWA can reduce the settlement and formation of plastic shrinkage cracks. It is shown that water will preferentially leave the LWA thus resulting in a system which remains more saturated.Citation
Concrete International
Volume
32
Issue
2
Pub Type
Journals
Download Paper
Keywords
Evaporation, Internal Curing, Plastic Shrinkage, Lightweight Aggregates, Settlement, Shrinkage Cracking.
Citation
Issues
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Created January 31, 2010, Updated October 12, 2021