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Shape factors of powder-type self-compacting concrete specimens subjected to uni-axial loading

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Abstract
Whereas rheology, pumpability, durability, etc. of self-compacting concrete (SCC) have been investigated for more than 20 years now, the mechanical properties received less attention. The past few years, this aspect is getting more and more attention. However, one of the problems encountered when comparing different studies is the use of different specimen sizes all over the world. For vibrated concrete (VC), conversion factors are defined to convert the obtained compressive strength on one specimen type to another. It has been questioned whether these factors are applicable to SCC. Therefore in this study an extensive research project was carried out to determine the shape factors of powder-type self-compacting concretes. A total of two VC and ten SCC mixture designs were selected varying in cement type, cement content, water-to-cement ratio and water-to-powder ratio. Beside cubes with sides of 100 mm, 150 mm and 200 mm, cylinders with a diameter of 100 mm and diameter 150 mm were cast and cores with a diameter of 100 mm, 80 mm and 50 mm were drilled. The experimental results are compared to existing formulas and tabulated values. The influence of the fraction of powder, the cement/powder-ratio and the water/cement-ratio seems to be insignificant. A significant difference between shape-factors of self-compacting concrete and shape factors of vibrated concrete has not been found.
Keywords
shape factor, uni-axial compression, Limestone powder, self-consolidating concrete, conversion factor

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Chicago
Van Der Vurst, Farid, Pieter Desnerck, Jonathan Peirs, and Geert De Schutter. 2013. “Shape Factors of Powder-type Self-compacting Concrete Specimens Subjected to Uni-axial Loading.” In 5th North American Conference on the Design and Use of Self-Consolidating Concrete, Proceedings, ed. Kejin Wang and Surendra P Shah.
APA
Van Der Vurst, F., Desnerck, P., Peirs, J., & De Schutter, G. (2013). Shape factors of powder-type self-compacting concrete specimens subjected to uni-axial loading. In Kejin Wang & S. P. Shah (Eds.), 5th North American Conference on the Design and Use of Self-Consolidating Concrete, Proceedings. Presented at the 5th North American Conference on the Design and Use of Self-Consolidating Concrete (SCC - 2013).
Vancouver
1.
Van Der Vurst F, Desnerck P, Peirs J, De Schutter G. Shape factors of powder-type self-compacting concrete specimens subjected to uni-axial loading. In: Wang K, Shah SP, editors. 5th North American Conference on the Design and Use of Self-Consolidating Concrete, Proceedings. 2013.
MLA
Van Der Vurst, Farid, Pieter Desnerck, Jonathan Peirs, et al. “Shape Factors of Powder-type Self-compacting Concrete Specimens Subjected to Uni-axial Loading.” 5th North American Conference on the Design and Use of Self-Consolidating Concrete, Proceedings. Ed. Kejin Wang & Surendra P Shah. 2013. Print.
@inproceedings{3235803,
  abstract     = {Whereas rheology, pumpability, durability, etc. of self-compacting concrete (SCC) have been investigated for more than 20 years now, the mechanical properties received less attention. The past few years, this aspect is getting more and more attention. However, one of the problems encountered when comparing different studies is the use of different specimen sizes all over the world. For vibrated concrete (VC), conversion factors are defined to convert the obtained compressive strength on one specimen type to another. It has been questioned whether these factors are applicable to SCC. Therefore in this study an extensive research project was carried out to determine the shape factors of powder-type self-compacting concretes. A total of two VC and ten SCC mixture designs were selected varying in cement type, cement content, water-to-cement ratio and water-to-powder ratio. Beside cubes with sides of 100 mm, 150 mm and 200 mm, cylinders with a diameter of 100 mm and diameter 150 mm were cast and cores with a diameter of 100 mm, 80 mm and 50 mm were drilled. The experimental results are compared to existing formulas and tabulated values. The influence of the fraction of powder, the cement/powder-ratio and the water/cement-ratio seems to be insignificant. A significant difference between shape-factors of self-compacting concrete and shape factors of vibrated concrete has not been found.},
  author       = {Van Der Vurst, Farid and Desnerck, Pieter and Peirs, Jonathan and De Schutter, Geert},
  booktitle    = {5th North American Conference on the Design and Use of Self-Consolidating Concrete, Proceedings},
  editor       = {Wang, Kejin and Shah, Surendra P},
  keyword      = {shape factor,uni-axial compression,Limestone powder,self-consolidating concrete,conversion factor},
  language     = {eng},
  location     = {Chicago, IL, USA},
  pages        = {10},
  title        = {Shape factors of powder-type self-compacting concrete specimens subjected to uni-axial loading},
  year         = {2013},
}