Conference proceedings article
Compressive Strength of UHPC in Bottle-Shaped Compression Fields



Publication Details
Authors:
Leutbecher, T.; Fehling, E.
Editor:
Schmidt, M.; Fehling, E.; Glotzbach, C; Fröhlich, S.; Piotrowski, S.
Publisher:
kassel university press GmbH
Place:
Kassel
Publication year:
2012
Pages range:
1027-1034
Book title:
Ultra High Performance Concrete and Nanotechnology in Construction, 3rd International Symposium on Ultra High Performance Concrete and Nanotechnology for High Performance Construction Materials
Title of series:
Schriftenreihe Baustoffe und Massivbau
Volume number:
19

Abstract
To investigate the load-bearing behavior in bottle-shaped compression fields, an extensive test program has been initiated including series on ultra high performance concrete (UHPC) as well as on high strength (HSC) and normal strength concrete (NSC). In bottle-shaped compression fields transverse compressive stresses arise directly below the concentrated load while tensile stresses act at a slightly larger distance from the load introduction area. The tensile strength may limit the bearing capacity if there is no transverse reinforcement. The experimental tests, presented in the following, showed that splitting was the governing failure mode in all cases. The fracture behavior was brittle for UHPC and HSC specimens without fibers. By using fibers, the load bearing capacity could be increased significantly. Also a more ductile behavior at ultimate load could be observed.


Keywords
biaxial, bottle-shaped, compression, concentrated load, splitting, stress field, tension

Last updated on 2019-25-07 at 13:34