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Influence of vacuum mixing on the mechanical properties of UHPC

Jeroen Dils UGent, Geert De Schutter UGent, Veerle Boel UGent and Egon Braem (2012) 3rd International Symposium on UHPC and Nanotechnology for High Performance Construction Materials : Ultra-High Performance Concrete and Nanotechnology in Construction, Proceedings. 19(19). p.241-248
abstract
The influence of vacuum mixing of UHPC on the compressive and tensile strength, and Young's modulus is examined. These mechanical properties are influenced by the microstructure and the pore system. Classical models predicting these properties based on the water-to-cement ratio do not consider the effect of vacuum mixing, which is quite new. This will be even more important in the case of UHPC because of the extremely low water-to-cement ratio and the larger influence of changes in air content. In this research, two different mixer sizes are considered : a vacum paste mixer (capacity of 5 liter) and a vacuum concrete mixer (capacity of 75 liter). For each mixer, three different pressure levels are examined : vacuum (100 mbar), semi-vacuum (500 mbar) and atmospheric pressure (1013 mbar). The influence of heat treatment (90°C) in CoMParison or combination with vacuum mixing is evaluated by means of the compressive strength on concrete cubes 100 mm.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
keyword
vacuum mixing, Young's modulus, UHPC, compressive & tensile strength
in
3rd International Symposium on UHPC and Nanotechnology for High Performance Construction Materials : Ultra-High Performance Concrete and Nanotechnology in Construction, Proceedings
editor
Michael Schmidt, Ekkehard Fehling, C Glotzbach, S Fröhlich and S Piotrowski
volume
19
issue
19
pages
241 - 248
publisher
Kassel University Press GmbH
place of publication
Kassel, Germany
conference name
3rd International Symposium on UHPC and Nanotechnology for High Performance Construction Materials : Ultra-High Performance Concrete and Nanotechnology in Construction (HIPERMAT - 2012)
conference location
Kassel, Germany
conference start
2012-03-07
conference end
2012-03-09
ISBN
9783862192649
language
English
UGent publication?
yes
classification
C1
copyright statement
I have transferred the copyright for this publication to the publisher
id
3006380
handle
http://hdl.handle.net/1854/LU-3006380
date created
2012-10-04 14:32:52
date last changed
2014-06-16 11:28:42
@inproceedings{3006380,
  abstract     = {The influence of vacuum mixing of UHPC on the compressive and tensile strength, and Young's modulus is examined. These mechanical properties are influenced by the microstructure and the pore system. Classical models predicting these properties based on the water-to-cement ratio do not consider the effect of vacuum mixing, which is quite new. This will be even more important in the case of UHPC because of the extremely low water-to-cement ratio and the larger influence of changes in air content. In this research, two different mixer sizes are considered : a vacum paste mixer (capacity of 5 liter) and a vacuum concrete mixer (capacity of 75 liter). For each mixer, three different pressure levels are examined : vacuum (100 mbar), semi-vacuum (500 mbar) and atmospheric pressure (1013 mbar). The influence of heat treatment (90{\textdegree}C) in CoMParison or combination with vacuum mixing is evaluated by means of the compressive strength on concrete cubes 100 mm.},
  author       = {Dils, Jeroen and De Schutter, Geert and Boel, Veerle and Braem, Egon},
  booktitle    = {3rd International Symposium on UHPC and Nanotechnology for High Performance Construction Materials : Ultra-High Performance Concrete and Nanotechnology in Construction, Proceedings},
  editor       = {Schmidt, Michael and Fehling, Ekkehard and Glotzbach, C and Fr{\"o}hlich, S and Piotrowski, S},
  isbn         = {9783862192649},
  keyword      = {vacuum mixing,Young's modulus,UHPC,compressive \& tensile strength},
  language     = {eng},
  location     = {Kassel, Germany},
  number       = {19},
  pages        = {241--248},
  publisher    = {Kassel University Press GmbH},
  title        = {Influence of vacuum mixing on the mechanical properties of UHPC},
  volume       = {19},
  year         = {2012},
}

Chicago
Dils, Jeroen, Geert De Schutter, Veerle Boel, and Egon Braem. 2012. “Influence of Vacuum Mixing on the Mechanical Properties of UHPC.” In 3rd International Symposium on UHPC and Nanotechnology for High Performance Construction Materials : Ultra-High Performance Concrete and Nanotechnology in Construction, Proceedings, ed. Michael Schmidt, Ekkehard Fehling, C Glotzbach, S Fröhlich, and S Piotrowski, 19:241–248. Kassel, Germany: Kassel University Press GmbH.
APA
Dils, J., De Schutter, G., Boel, V., & Braem, E. (2012). Influence of vacuum mixing on the mechanical properties of UHPC. In M. Schmidt, E. Fehling, C. Glotzbach, S. Fröhlich, & S. Piotrowski (Eds.), 3rd International Symposium on UHPC and Nanotechnology for High Performance Construction Materials : Ultra-High Performance Concrete and Nanotechnology in Construction, Proceedings (Vol. 19, pp. 241–248). Presented at the 3rd International Symposium on UHPC and Nanotechnology for High Performance Construction Materials : Ultra-High Performance Concrete and Nanotechnology in Construction (HIPERMAT - 2012), Kassel, Germany: Kassel University Press GmbH.
Vancouver
1.
Dils J, De Schutter G, Boel V, Braem E. Influence of vacuum mixing on the mechanical properties of UHPC. In: Schmidt M, Fehling E, Glotzbach C, Fröhlich S, Piotrowski S, editors. 3rd International Symposium on UHPC and Nanotechnology for High Performance Construction Materials : Ultra-High Performance Concrete and Nanotechnology in Construction, Proceedings. Kassel, Germany: Kassel University Press GmbH; 2012. p. 241–8.
MLA
Dils, Jeroen, Geert De Schutter, Veerle Boel, et al. “Influence of Vacuum Mixing on the Mechanical Properties of UHPC.” 3rd International Symposium on UHPC and Nanotechnology for High Performance Construction Materials : Ultra-High Performance Concrete and Nanotechnology in Construction, Proceedings. Ed. Michael Schmidt et al. Vol. 19. Kassel, Germany: Kassel University Press GmbH, 2012. 241–248. Print.