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Proceedings 2018, 2(8), 399; https://doi.org/10.3390/ICEM18-05236

Comparison of Fracture Resistance of the Normal and High Strength Concrete Evaluated by Brazilian Disc Test

1
Faculty of Civil Engineering, Brno University of Technology, Brno 602 00, Czech Republic
2
Institute of Physics of Materials, Academy of Science of the Czech Republic, Brno 616 62, Czech Republic
3
Faculty of Civil Engineering, VSB-Technical University of Ostrava, Ostrava 708 33, Czech Republic
Presented at the 18th International Conference on Experimental Mechanics, Brussels, Belgium, 1–5 July 2018.
*
Author to whom correspondence should be addressed.
Published: 19 May 2018
PDF [609 KB, uploaded 7 June 2018]

Abstract

Nowadays, high performance concrete is used more frequently because of the many advantages compared to traditional concrete. The higher mechanical properties (e.g., compressive strength, flexural strength, and Young’s modulus) allow for larger spans and slender cross-sections. Despite the use of advanced material, standards for structural design do not fully use materials’ potential. This can be minimized by using fracture mechanical properties in structural analysis. The fracture mechanical properties help to perform advanced structural analysis, especially when some of the structural elements have a crack. The load presence on the structure can be divided into tensile—mode I, shear—mode II, and combination of tension and shear—mixed mode I/II load. Therefore, it is necessary to perform test, which covers mixed mode loading conditions. One of the tests usually used for the evaluation of fracture resistance of concrete is Brazilian disc test. This contribution compares fracture resistance of two types of structural concrete (normal and high strength) under the mixed mode I/II. The generalized maximum tangential stress (GMTS) criterion was used for the evaluation of the fracture resistance.
Keywords: Brazilian disc test; fracture mechanics; GMTS; high strength concrete; mixed mode Brazilian disc test; fracture mechanics; GMTS; high strength concrete; mixed mode
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Miarka, P.; Seitl, S.; Bílek, V. Comparison of Fracture Resistance of the Normal and High Strength Concrete Evaluated by Brazilian Disc Test. Proceedings 2018, 2, 399.

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