Analytical solutions for bleeding of concrete due to consolidation

Morris, P. H. and Dux, P. F. (2010) Analytical solutions for bleeding of concrete due to consolidation. Cement and Concrete Research, 40 10: 1531-1540. doi:10.1016/j.cemconres.2010.06.007


Author Morris, P. H.
Dux, P. F.
Title Analytical solutions for bleeding of concrete due to consolidation
Journal name Cement and Concrete Research   Check publisher's open access policy
ISSN 0008-8846
1873-3948
Publication date 2010-10-01
Sub-type Article (original research)
DOI 10.1016/j.cemconres.2010.06.007
Open Access Status Not yet assessed
Volume 40
Issue 10
Start page 1531
End page 1540
Total pages 10
Place of publication Oxford, England
Publisher Pergamon-Elsevier Science
Language eng
Subject 870301 Cement and Concrete Materials
090503 Construction Materials
Abstract The bleeding of cement pastes, cement mortars, and concrete is due primarily to the self-weight consolidation of the granular skeleton formed by the solid constituents thereof. However, the effects of hydration can end this process prematurely. Linear finite- and small-strain analytical solutions of bleeding as a consolidation process that account for the effects of hydration are presented and then validated by comparison with laboratory data for cement pastes and concretes. Contrary to earlier assertions that a finite-strain model is required to model bleeding, the new finite- and small-strain solutions model the bleeding of the relatively shallow specimens analysed equally well. However, further research is necessary to establish whether small-strain solutions can model adequately the bleeding of comparatively deep concrete layers, and methods of determining the values of input parameters for the new solutions are also required. A potential method of determining one of these, the time of set, is discussed briefly. (C) 2010 Elsevier Ltd. All rights reserved.
Keyword Bleeding
Fresh concrete
Hydration
Modelling
Analytical solutions
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
Official 2011 Collection
 
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Citation counts: TR Web of Science Citation Count  Cited 13 times in Thomson Reuters Web of Science Article | Citations
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Created: Sun, 19 Sep 2010, 10:07:29 EST