Temperature impact on bond between steel and ultra high performance

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21610%2F19%3A00337390" target="_blank" >RIV/68407700:21610/19:00337390 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Temperature impact on bond between steel and ultra high performance

Original language description

Actual paper describes an experimental research in the field of testing bond behaviour of UHPFRC with temperature impact. High temperature (fire, explosion) or low temperature (freezing) has a fatal impact on final materiál properties of the concrete. In application made from ordinary concrete exposed to high temperatures polypropylene fibres are often used in case of spalling reduction or its elimination. UHFRPC (Ultra – High Performance Fibre Reinforced Concrete) is very promising material which is used for design very complex structures and elements, because of high materiál properties and especially high durability and resistance against extreme environment. In this case, a combination of steel fibres (static function) and polypropylene fibres was used for a spalling reduction and elimination, same as in ordinary concrete. Impact of fibre volume to final bond properties was also tested. An extensive research is described in this paper. Large set of results of material properties with connection to final bond behaviour are included. For the tests a normal reinforcement (bars) and prestressing strands were used. UHPC is usually reinforced only by a scattered reinforcement, which replaces ordinary reinforcement. In most application, the UHPFRC is used to increase durability of the structure and reduction of final volume of concrete. There are also many applications where exposition to elevated temperature may occurred (sprayed UHPFRC in tunnel application).Obtained results help to final design of the UHPFRC structure which may be exposed to extreme conditions.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20101 - Civil engineering

Project

<a href="/en/project/GA17-22796S" target="_blank" >GA17-22796S: Experimental and numerical analysis of bond behaviour between steel reinforcement and Ultra High Performance Concrete (UHPC) at elevated temperatures</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings of 177th ISERD International Conference

ISBN

978-93-89469-86-8

ISSN

—

e-ISSN

—

Number of pages

4

Pages from-to

52-55

Publisher name

Institute for Technology and Research

Place of publication

—

Event location

Dubai

Event date

Dec 1, 2019

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

—