Experimental Tests of I Profile Made from UHPC Reinforced with Textile Glass Fibres

Abstract:

This abstract is summarizing production and subsequent experimental testing of 3D profile of the symmetrical I shape concrete from UHPC matrix and reinforced with textile glass fibres. Upper and bottom covering strips of this profile are at the outside fibres reinforced with textile glass reinforcement. Position of this reinforcement is fixed in the distance of about 3 mm from outside fibres and is connected with reinforcement of the profile stem located in its axis. Such prepared beams were tested with four-point flexure evenly loaded until fracture. Course of the measurement was continuously recorded by the automatic logger, where mostly increase of the force in relation to deflection in the middle of the span and change of position of supports were recorded. From the recorded data were prepared graphic outputs compared with the same experiments performed on I profile which is not reinforced, i.e. only UHPC matrix, and for comparison also on the profile made from UHPC matrix with use of metal wires. In the conclusion were compared achieved test results. Mainly suitability and loading capacity of individual beam types was compared. Within the experiment were performed supporting tests based on which were determined material characteristics of tested matrix and textile glass reinforcement. Tests were performed in the Klokner Institute within solution of the grant project GACŘ 13-12676S.

• Periodical: Solid State Phenomena (Volume 249)
• Pages: 261-266
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.249.261
• Online since: April 2016
• Authors: Tomáš Bittner*, Petr Bouška, Šárka Nenadálová, Milan Rydval, David Citek
• Keywords: Deflection, Experimental Test, I Beam, Textile Glass Reinforcement, UHPC

References

[1] BRAMESHUBER, W. (2006). Textile Reinforced Concrete, RILEM Report 36. State of the Art, Report of RILEM.

[2] HENRIK FUNKE, SANDRA GELBRICH & LOTHAR KROLL, New Hybrid Material of Textile Reinforced Concrete and Glass Fibre Reinforced Plastic.

DOI: 10.5539/jmsr.v2n3p96

[3] X. X. He, S. Wu, Experimental Study on Size Effect in Strength of Pervious Concrete and its Associated Factor, Advanced Materials Research, Vols. 634-638, pp.2684-2692, Jan. (2013).

DOI: 10.4028/www.scientific.net/amr.634-638.2684

[4] T. Bittner et al., Experimental Investigation of the Mechanical Properties of Textile Glass Reinforcement, Applied Mechanics and Materials (2015), Vol 732, p.45–48, 10. 4028/www. scientific. net/AMM. 732. 45.

DOI: 10.4028/www.scientific.net/amm.732.45

[5] T. Vlach et al., Comparison of Different Methods for Determination of Modulus of Elasticity of Composite Reinforcement Produced from Roving, Advanced Materials Research (2014), Vol 1054, pp.104-109, 10. 4028/www. scientific. net/AMR. 1054. 104.

DOI: 10.4028/www.scientific.net/amr.1054.104