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Velocity profile of self compacting concrete and traditional concrete flowing in a half open pipe

HD Le, Geert De Schutter UGent, EH Kadri, S Aggoun, J Vierendeels and Peter Troch UGent (2012) Concrete repair, rehabilitation and retrofitting III. p.1382-1387
abstract
ABSTRACT: The behavior of concrete flowing in a pipe is a key factor for mastering the concrete pumping technique. Due to the non-homogeneity of concrete, the concentration of particles (aggregate, sand, cement…) is not the same everywhere in the pipe. Particularly in the highly sheared zone near the wall, the concentration of coarse particles is much lower than that in the bulk. As a result, the rheological properties across the cross section vary with the distance from the wall. This phenomenon affects directly the velocity profile across the section. However, the velocity profile of concrete flowing in a pipe has never been quantitatively measured. This paper shows an experimental method to accurately measure the velocity profile. On the other hand, the influence of the variation of the rheological properties on the velocity profile across the pipe is also studied. Finally, a comparison between experimental analyses and numerical simulations shows reasonable correlation. This paper concentrates on the difference between the flow of a self-compacting concrete and that of a traditional concrete based on their different rheological properties.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
in
Concrete repair, rehabilitation and retrofitting III
editor
Mark G Alexander, Hans-Dieter Beushausen, Frank Dehn and Pilate Moyo
pages
1382 - 1387
publisher
CRC Press
place of publication
Leiden, The Netherlands
conference name
3rd International conference on Concrete Repair, Rehabilitation and Retrofitting (ICCRRR -2012)
conference location
Cape Town, South Africa
conference start
2012-09-03
conference end
2012-09-05
ISBN
9780415899529
language
English
UGent publication?
yes
classification
C1
copyright statement
I have transferred the copyright for this publication to the publisher
VABB id
c:vabb:339723
VABB type
VABB-5
id
2986562
handle
http://hdl.handle.net/1854/LU-2986562
date created
2012-09-13 15:25:56
date last changed
2015-06-17 10:14:26
@inproceedings{2986562,
  abstract     = {ABSTRACT: The behavior of concrete flowing in a pipe is a key factor for mastering the concrete pumping technique. Due to the non-homogeneity of concrete, the concentration of particles (aggregate, sand, cement{\textellipsis}) is not the same everywhere in the pipe. Particularly in the highly sheared zone near the wall, the concentration of coarse particles is much lower than that in the bulk. As a result, the rheological properties across the cross section vary with the distance from the wall. This phenomenon affects directly the velocity profile across the section. However, the velocity profile of concrete flowing in a pipe has never been quantitatively measured. This paper shows an experimental method to accurately measure the velocity profile. On the other hand, the influence of the variation of the rheological properties on the velocity profile across the pipe is also studied. Finally, a comparison between experimental analyses and numerical simulations shows reasonable correlation. This paper concentrates on the difference between the flow of a self-compacting concrete and that of a traditional concrete based on their different rheological properties.},
  author       = {Le, HD and De Schutter, Geert and Kadri, EH and Aggoun, S and Vierendeels, J and Troch, Peter},
  booktitle    = {Concrete repair, rehabilitation and retrofitting III},
  editor       = {Alexander, Mark G and Beushausen, Hans-Dieter and Dehn, Frank and Moyo, Pilate},
  isbn         = {9780415899529},
  language     = {eng},
  location     = {Cape Town, South Africa},
  pages        = {1382--1387},
  publisher    = {CRC Press},
  title        = {Velocity profile of self compacting concrete and traditional concrete flowing in a half open pipe},
  year         = {2012},
}

Chicago
Le, HD, Geert De Schutter, EH Kadri, S Aggoun, J Vierendeels, and Peter Troch. 2012. “Velocity Profile of Self Compacting Concrete and Traditional Concrete Flowing in a Half Open Pipe.” In Concrete Repair, Rehabilitation and Retrofitting III, ed. Mark G Alexander, Hans-Dieter Beushausen, Frank Dehn, and Pilate Moyo, 1382–1387. Leiden, The Netherlands: CRC Press.
APA
Le, HD, De Schutter, G., Kadri, E., Aggoun, S., Vierendeels, J., & Troch, P. (2012). Velocity profile of self compacting concrete and traditional concrete flowing in a half open pipe. In M. G. Alexander, H.-D. Beushausen, F. Dehn, & P. Moyo (Eds.), Concrete repair, rehabilitation and retrofitting III (pp. 1382–1387). Presented at the 3rd International conference on Concrete Repair, Rehabilitation and Retrofitting (ICCRRR -2012), Leiden, The Netherlands: CRC Press.
Vancouver
1.
Le H, De Schutter G, Kadri E, Aggoun S, Vierendeels J, Troch P. Velocity profile of self compacting concrete and traditional concrete flowing in a half open pipe. In: Alexander MG, Beushausen H-D, Dehn F, Moyo P, editors. Concrete repair, rehabilitation and retrofitting III. Leiden, The Netherlands: CRC Press; 2012. p. 1382–7.
MLA
Le, HD, Geert De Schutter, EH Kadri, et al. “Velocity Profile of Self Compacting Concrete and Traditional Concrete Flowing in a Half Open Pipe.” Concrete Repair, Rehabilitation and Retrofitting III. Ed. Mark G Alexander et al. Leiden, The Netherlands: CRC Press, 2012. 1382–1387. Print.