| Autor: |
Čítek, David, Mandlík, Tomáš, Kolísko, Jiří, Řeháček, Stanislav |
| Zdroj: |
Advanced Materials Research; September 2015, Vol. 1124 Issue: 1 p319-324, 6p |
| Abstrakt: |
The UHPC (Ultra High Performance Concrete) is a promising material suitable for application in special structures. However, the knowledge on performance of this relatively new material is rather limited. The exceptional mechanical properties of UHPC allow for a modification of the design rules, which are applicable in ordinary or high strength concrete. The research executed already in the Czech Republic showed that the anchorage length of ordinary and prestressing steel may be significantly shorter than that which is usually required in code specifications. This paper deals in more detail with impact of thermal stress on bond of prestressing strands and UHPC. Samples were subjected to the cycling heat/frost device and effect of a number of cycles on final bond behaviour of both UHPC and ordinary concrete were investigated. The article describes differences between ordinary concrete and UHPC. |
| Databáze: |
Supplemental Index |
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