Snap-through cracking in plastic concrete slabs

Morris, P. H., Dux, P. F. and Dao, V. T. N. (2010). Snap-through cracking in plastic concrete slabs. In: Byung Hwan Oh, Fracture Mechanics of Concrete and Concrete Structures: 1. Recent Advances in Fracture Mechanics of Concrete. Proceedings of the 7th International Conference on Fracture Mechanics of Concrete and Concrete Structures (FraMCoS-7). 7th International Conference on Fracture Mechanics of Concrete and Concrete Structures, Jeju, Korea, (363-369). 23-28 May, 2010.

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Name Description MIMEType Size Downloads
Author Morris, P. H.
Dux, P. F.
Dao, V. T. N.
Title of paper Snap-through cracking in plastic concrete slabs
Conference name 7th International Conference on Fracture Mechanics of Concrete and Concrete Structures
Conference location Jeju, Korea
Conference dates 23-28 May, 2010
Convener O. C. Choi
Proceedings title Fracture Mechanics of Concrete and Concrete Structures: 1. Recent Advances in Fracture Mechanics of Concrete. Proceedings of the 7th International Conference on Fracture Mechanics of Concrete and Concrete Structures (FraMCoS-7)
Place of Publication Jeju, Korea
Publisher International Association of Fracture Mechanics for Concrete and Concrete Structures (IA-FraMCoS)
Publication Year 2010
Year available 2010
Sub-type Fully published paper
ISBN 9788957081808
Editor Byung Hwan Oh
Start page 363
End page 369
Total pages 7
Collection year 2011
Language eng
Abstract/Summary Snap-through cracking of desiccating plastic concrete slabs, which is occasionally observed in practice, can reduce significantly the service life of concrete structures. However, its underlying mechanism has remained largely unexplained, with very limited literature available. In this paper, theoretical analyses of snap-through cracking in plastic concrete slabs, which are based on combined geotechnical engineering and fracture mechanics models, are presented. The results obtained capture the essential features of snap-through cracking, showing how surface cracks in plastic concrete can become unstable, deepen rapidly, and either become stable again or propagate through the full depth of the slab. They also clarify the roles and significance of pre-existing surface cracks and surface defects, pore moisture suction, and the depth of desiccation in this process. Most importantly, they also confirm the critical role of good construction practices, including the control of compaction and desiccation, in preventing this form of cracking.
Subjects 870301 Cement and Concrete Materials
090599 Civil Engineering not elsewhere classified
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes presented in session 5A: Cracking, Crack Extension

Document type: Conference Paper
Collections: School of Civil Engineering Publications
Official 2011 Collection
 
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Created: Wed, 09 Jun 2010, 23:39:39 EST by Jeannette Watson on behalf of School of Civil Engineering