Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the International Conference on Sustainable Materials Systems and Structures (SMSS2019) |
| Subtitle of host publication | Durability, Monitoring and Repair of Structures |
| Editors | Ana Baričević, Marija Jelčić Rukavina, Domagoj Damjanović, Maurizio Guadagnini |
| Pages | 756-763 |
| ISBN (electronic) | 978-2-35158-218-3 |
| Publication status | Published - Mar 2019 |
| Event | International Conference on Sustainable Materials Systems and Structures (SMSS2019): Durability, Monitoring and Repair of Structures - Rovinj, Croatia Duration: 20 Mar 2019 → 22 Mar 2019 |
Abstract
Currently, the effect of cyclic loading on UHPFRC, in particular the tensile bearing behaviour and post cracking tensile strength is not quite clear. Therefore, the degradation processes of UHPFRC under cyclic tensile loading have to be investigated fundamentally. This is done in experimental investigations by iBMB, Division of Concrete Constructions of TU Braunschweig, on small-sized specimens, like fibre tests and tensile tests on plain ultra-high performance concrete and as well as fibre pull-out tests. Within this test program, the number of cycles and amplitudes are varied to examine the mechanical properties and to display the degradation processes. Imaging techniques like digital microscopy, x-ray scans (CT) and scanning electron microscopy (SEM) are used to obtain the degradation of the fibre, the UHPC and the interfacial transition zone (ITZ) between fibre and UHPC. The following paper contains a current state of the research project “Degradation Processes of UHPFRC under cyclic tensile Loading” as part of the priority program SPP 2020 “Cyclic deterioration of High-Performance Concrete in an experimental-virtual lab” founded by the German Research Foundation (Ger. DFG).
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Proceedings of the International Conference on Sustainable Materials Systems and Structures (SMSS2019): Durability, Monitoring and Repair of Structures. ed. / Ana Baričević; Marija Jelčić Rukavina; Domagoj Damjanović; Maurizio Guadagnini. 2019. p. 756-763.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Experimental investigations of UHPC, steel fibres and embedded steel fibres under cyclic tensile loading
AU - Oettel, Vincent
AU - Empelmann, Martin
AU - Lanwer, Jan‐Paul
PY - 2019/3
Y1 - 2019/3
N2 - Modern high performance concretes, like ultra-high performance fibre-reinforced concrete (UHPFRC), need for avoidance of brittle failure modes a relatively high fibre content, which leads to an overcritical tensile load-bearing behaviour and a high post-cracking tensile strength. Additionally, UHPFRC can preferably been used for lean and thin-walled structures due to its very high compressive strength. The combination of weight reduction and high slenderness make UHPFRC-structures susceptible to cyclic loading, e.g. in case of bridge girders or masts and towers. Currently, the effect of cyclic loading on UHPFRC, in particular the tensile bearing behaviour and post cracking tensile strength is not quite clear. Therefore, the degradation processes of UHPFRC under cyclic tensile loading have to be investigated fundamentally. This is done in experimental investigations by iBMB, Division of Concrete Constructions of TU Braunschweig, on small-sized specimens, like fibre tests and tensile tests on plain ultra-high performance concrete and as well as fibre pull-out tests. Within this test program, the number of cycles and amplitudes are varied to examine the mechanical properties and to display the degradation processes. Imaging techniques like digital microscopy, x-ray scans (CT) and scanning electron microscopy (SEM) are used to obtain the degradation of the fibre, the UHPC and the interfacial transition zone (ITZ) between fibre and UHPC. The following paper contains a current state of the research project “Degradation Processes of UHPFRC under cyclic tensile Loading” as part of the priority program SPP 2020 “Cyclic deterioration of High-Performance Concrete in an experimental-virtual lab” founded by the German Research Foundation (Ger. DFG).
AB - Modern high performance concretes, like ultra-high performance fibre-reinforced concrete (UHPFRC), need for avoidance of brittle failure modes a relatively high fibre content, which leads to an overcritical tensile load-bearing behaviour and a high post-cracking tensile strength. Additionally, UHPFRC can preferably been used for lean and thin-walled structures due to its very high compressive strength. The combination of weight reduction and high slenderness make UHPFRC-structures susceptible to cyclic loading, e.g. in case of bridge girders or masts and towers. Currently, the effect of cyclic loading on UHPFRC, in particular the tensile bearing behaviour and post cracking tensile strength is not quite clear. Therefore, the degradation processes of UHPFRC under cyclic tensile loading have to be investigated fundamentally. This is done in experimental investigations by iBMB, Division of Concrete Constructions of TU Braunschweig, on small-sized specimens, like fibre tests and tensile tests on plain ultra-high performance concrete and as well as fibre pull-out tests. Within this test program, the number of cycles and amplitudes are varied to examine the mechanical properties and to display the degradation processes. Imaging techniques like digital microscopy, x-ray scans (CT) and scanning electron microscopy (SEM) are used to obtain the degradation of the fibre, the UHPC and the interfacial transition zone (ITZ) between fibre and UHPC. The following paper contains a current state of the research project “Degradation Processes of UHPFRC under cyclic tensile Loading” as part of the priority program SPP 2020 “Cyclic deterioration of High-Performance Concrete in an experimental-virtual lab” founded by the German Research Foundation (Ger. DFG).
M3 - Conference contribution
SN - 978-2-35158-217-6
SP - 756
EP - 763
BT - Proceedings of the International Conference on Sustainable Materials Systems and Structures (SMSS2019)
A2 - Baričević, Ana
A2 - Jelčić Rukavina, Marija
A2 - Damjanović, Domagoj
A2 - Guadagnini, Maurizio
T2 - International Conference on Sustainable Materials Systems and Structures (SMSS2019)
Y2 - 20 March 2019 through 22 March 2019
ER -