Advanced Assessment of Cracking Due to Heat of Hydration and Internal Restraint
An effective strategy for hydration-heat-induced cracking minimization in structures with dominant internal restraint is temperature difference control across a section. There is a tendency for crack occurrence probability overestimation to happen in some related provisions compared with real structure construction experience. In order for equation validity to be examined, provision background had to be as well. It was found that they were simple elastic model-based in which there was no early age consideration of elastic modulus change. The author proposed an advanced assessment strategy in which the hypoelastic model is taken into account in which an incremental constitutive evaluation can be incorporated. The reasonable crack prediction equation form with regard to hydration and internal restraint heat is discussed, with consideration given to construction conditions and various mixtures. Additionally, a predictive temperature difference is proposed using the curing condition and ambient temperature affected equivalent thickness.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/13846872
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Authors:
- Jeon, Si-Jin
- Publication Date: 2008
Language
- English
Media Info
- Media Type: Print
- Features: Figures; References; Tables;
- Pagination: pp 325-333
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Serial:
- ACI Materials Journal
- Volume: 105
- Issue Number: 4
- Publisher: American Concrete Institute (ACI)
- ISSN: 0889-325X
- Serial URL: https://www.concrete.org/publications/acimaterialsjournal.aspx
Subject/Index Terms
- TRT Terms: Concrete structures; Cracking; Estimation theory; Heat of hydration; Mathematical prediction
- Uncontrolled Terms: Internal restraint; Temperature differentials
- Subject Areas: Data and Information Technology; Highways; Materials; I32: Concrete;
Filing Info
- Accession Number: 01109016
- Record Type: Publication
- Report/Paper Numbers: 105-M37
- Files: TRIS
- Created Date: Aug 22 2008 8:42AM