NDLI: Fundamental Investigations on the Performance of Micro Steel Fibres in Ultra-High-Performance Concrete under Monotonic and Cyclic Tensile Loading

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Fundamental Investigations on the Performance of Micro Steel Fibres in Ultra-High-Performance Concrete under Monotonic and Cyclic Tensile Loading

Content Provider	MDPI
Author	Lanwer, Jan-Paul Empelmann, Martin
Copyright Year	2021
Description	Ultra-high-performance fibre-reinforced concrete (UHPFRC) can preferably be used for lean and thin-walled structures due to its very high compressive strength. Based on the adverse relation between the increased load bearing capacities and the condensed dead weight of UHPFRC-structures, the impact of live loads in the design gets bigger and, in case of traffic loads, the effects of a cyclic loading have to be considered in more detail. In this context, this study investigated the material behaviour of UHPFRC, especially the tensile fatigue behaviour of high-strength micro steel fibres and the bond behaviour between those fibres and plain UHPC. The test programme included once tensile tests of high-strength micro steel fibres under monotonic and cyclic loading. Based on the test results, an S/N-curve was set up with the characteristic values. Furthermore, the test programme included pullout tests of fibre groups with different embedded lengths and orientations under monotonic and cyclic loading. It was observed that some fibres rupture under certain test configurations like the angle of orientation and the load amplitude.
Starting Page	9377
e-ISSN	20763417
DOI	10.3390/app11209377
Journal	Applied Sciences
Issue Number	20
Volume Number	11
Language	English
Publisher	MDPI
Publisher Date	2021-10-09
Access Restriction	Open
Subject Keyword	Applied Sciences Characterization and Testing of Materials Ultra-high-performance Concrete High-strength Micro Steel Fibres Cyclic Loading Bond Behaviour Load-bearing Behaviour
Content Type	Text
Resource Type	Article

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