Details
| Original language | English |
|---|---|
| Article number | 99 |
| Journal | Materials and Structures/Materiaux et Constructions |
| Volume | 54 |
| Issue number | 3 |
| Early online date | 16 Apr 2021 |
| Publication status | Published - Jun 2021 |
Abstract
The results of tests under monotonically increasing load and cyclic compression load are often analysed by means of probabilistic methods. Although there is a considerable scattering in the results, especially in the number of cycles to failure, the cause of these cannot be completely explained. The imperfections of the specimens tested are among the causes of this scattering mentioned in the literature. Based on a round robin test the influence of HPC and UHPC production and specimen preparation techniques on the mean values of the compressive strengths, number of cycles to failure and data scattering have been evaluated. The main findings of the study are that the production techniques have an influence on the compressive strength, however, do not affect the mean number of cycles to failure. Moreover, the accurate preparation of the specimens has a positive influence on the compressive strength and the scattering of the results of both compression and cyclic load tests. The mean number of cycles to failure of HPC specimens is not influenced by the preparation techniques, whereas the polishing technique may have a positive influence on the mean number of cycles to failure of UHPC specimens.
Keywords
- Compressive strength, Data scattering, Fatigue, High-performance concrete, Number of cycles to failure, Ultra-high performance concrete
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Engineering(all)
- Building and Construction
- Materials Science(all)
- Engineering(all)
- Mechanics of Materials
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In: Materials and Structures/Materiaux et Constructions, Vol. 54, No. 3, 99, 06.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Influence of the specimen production and preparation on the compressive strength and the fatigue resistance of HPC and UHPC
AU - Basaldella, Marco
AU - Oneschkow, Nadja
AU - Lohaus, Ludger
N1 - Funding Information: This research project was supported by the German Research Foundation (DFG) within the scope of Priority Programme 2020 “Cyclic deterioration of High-Performance Concrete in an experimental virtual lab” (353531623). The authors would like to express their gratitude for the financial support. The authors would also like to thank the project partners for their cooperation and engagement. Funding Information: The Institute of Building Material Science of Leibniz University in Hannover is the initiator and co-ordinator of the Priority Programme SPP 2020 “Cyclic deterioration of High-Performance Concrete in an experimental virtual lab”, which is financed by the German Research Foundation and aims to better understand and describe the damage processes in concrete. This programme, in which 13 projects from different research institutes are participating, is the first occasion in which the influence of the nature of the specimen can be extensively investigated. The influence of the specimen production and preparation procedures on the compressive strength and the number of cycles to failure for high-performance (HPC) and ultra-high performance concrete (UHPC) were investigated within the framework of a round robin test in which seven laboratories participated. Funding Information: Open Access funding enabled and organized by Projekt DEAL. The work was funded by the German Research Foundation (DFG).
PY - 2021/6
Y1 - 2021/6
N2 - The results of tests under monotonically increasing load and cyclic compression load are often analysed by means of probabilistic methods. Although there is a considerable scattering in the results, especially in the number of cycles to failure, the cause of these cannot be completely explained. The imperfections of the specimens tested are among the causes of this scattering mentioned in the literature. Based on a round robin test the influence of HPC and UHPC production and specimen preparation techniques on the mean values of the compressive strengths, number of cycles to failure and data scattering have been evaluated. The main findings of the study are that the production techniques have an influence on the compressive strength, however, do not affect the mean number of cycles to failure. Moreover, the accurate preparation of the specimens has a positive influence on the compressive strength and the scattering of the results of both compression and cyclic load tests. The mean number of cycles to failure of HPC specimens is not influenced by the preparation techniques, whereas the polishing technique may have a positive influence on the mean number of cycles to failure of UHPC specimens.
AB - The results of tests under monotonically increasing load and cyclic compression load are often analysed by means of probabilistic methods. Although there is a considerable scattering in the results, especially in the number of cycles to failure, the cause of these cannot be completely explained. The imperfections of the specimens tested are among the causes of this scattering mentioned in the literature. Based on a round robin test the influence of HPC and UHPC production and specimen preparation techniques on the mean values of the compressive strengths, number of cycles to failure and data scattering have been evaluated. The main findings of the study are that the production techniques have an influence on the compressive strength, however, do not affect the mean number of cycles to failure. Moreover, the accurate preparation of the specimens has a positive influence on the compressive strength and the scattering of the results of both compression and cyclic load tests. The mean number of cycles to failure of HPC specimens is not influenced by the preparation techniques, whereas the polishing technique may have a positive influence on the mean number of cycles to failure of UHPC specimens.
KW - Compressive strength
KW - Data scattering
KW - Fatigue
KW - High-performance concrete
KW - Number of cycles to failure
KW - Ultra-high performance concrete
UR - http://www.scopus.com/inward/record.url?scp=85104558066&partnerID=8YFLogxK
U2 - 10.1617/s11527-021-01696-9
DO - 10.1617/s11527-021-01696-9
M3 - Article
AN - SCOPUS:85104558066
VL - 54
JO - Materials and Structures/Materiaux et Constructions
JF - Materials and Structures/Materiaux et Constructions
SN - 1359-5997
IS - 3
M1 - 99
ER -