High Performance and Ultra-High Performace Fibre Reinforced Concrete with Stabilized Homogeneity

Luboš Musil; Jan Vesecky; Jan Kubat; Jan Vodicka

doi:10.4028/p-47eiRw

Paper Titles

3D Printed Cement Composites Testing
p.17

Comparison of Concrete Mixtures and Alkaline Activated Material with Regard to Selected Properties for Structural Design
p.25

Replacement of Fine Aggregates in Fine-Grained Concrete by Waste Material from Cetris Boards Production
p.31

Selected Mechanical Properties of Concrete with Regard to the Type of Steel Fibers
p.39

High Performance and Ultra-High Performace Fibre Reinforced Concrete with Stabilized Homogeneity
p.45

Rheological Properties and Segregation of Fresh UHPC with Fibers Affected by Initial Temperature of Concrete Mix
p.53

Mechanical Properties of Luffa Fiber Reinforced Recycled Polymer Composite
p.63

Research on the Influence of Humidity on the Manufacture of GFRP Vessels in the Equatorial
p.69

Composite Conductive Carbon-Polymer Paints as a Replacement for the “Faraday Cage”
p.75

HomeDefect and Diffusion ForumDefect and Diffusion Forum Vol. 432High Performance and Ultra-High Performace Fibre...

High Performance and Ultra-High Performace Fibre Reinforced Concrete with Stabilized Homogeneity

Abstract:

This paper describes the segregation of fibres in high performance and high strength concretes. It focuses on both laboratory and practical conditions. It compares different mixtures produced and processed in the laboratory and in the precast concrete company. Two methods are chosen in the paper to avoid fibre segregation. The first method is a suitable mix design considering the water/cement ratio and the amount of superplasticizer. The second method is the addition of synthetic fibres to the mixture while maintaining sufficient workability. The paper examines the consistence of each mixture according to the concrete placement location, segregation of fibres in the fresh mixture and hardened composite. Both methods under laboratory and practical conditions have shown a positive impact on the reduction of segregation of steel fibres in the mixture. Simultaneously, the strength properties of all mixtures were compared, which depended mainly on the type of synthetic fibres used.

You might also be interested in these eBooks

View Preview

Advanced Materials and Technologies in Engineering Applications

View Preview

Info:

Periodical:

Defect and Diffusion Forum (Volume 432)

Pages:

45-52

DOI:

https://doi.org/10.4028/p-47eiRw

Citation:

Cite this paper

Online since:

March 2024

Authors:

Luboš Musil*, Jan Vesecky, Jan Kubat, Jan Vodicka

Keywords:

Concrete, Segregation, Steel Fibers, UHPC, UHPFRC

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] M. Rydval, Technology and properties of ultra high performance concrete, dissertation, Prague 2019, CTU in Prague

Google Scholar

[2] CTU in Prague, Faculty of Civil Engineering. Ultra high-performance reinforced concrete with stabilized structure homogeneity. Inventors: J. Vodička, L. Musil. Czech republic, UPV. PUV 2023-41043 31. 8. 2023.

Google Scholar

[3] Methodology 3 - Methodology for the production of elements from UHPC and for checking their execution, output of the project TAČR TA 010110269, Klokner Institute, CTU in Prague (2014)

Google Scholar

[4] Methodology 1 – Methodology for the design of UHPC and material tests, output of the project TAČR TA 010110269, Klokner Institute, CTU in Prague (2014)

Google Scholar

[5] ČSN EN 1015-3, Methods of test for mortar for masonry - Part 3: Determination of consistence of fresh mortar (by flow table), Prague (2000)

DOI: 10.3403/01541440

Google Scholar

[6] A. Kohoutková; H. Hanzlová and J. Vodička,. Uniformity of the Steel Fibres Distribution in Fibre-Reinforced Concrete. Online. In: https://stavba.tzb-info.cz/beton-malty-omitky/18873-rovnomernost-rozptyleni-dratku-ve-strukture-dratkobetonu. [cit. 2023-09-02].

Google Scholar