Simultaneous thermal analysis and thermodilatometry of hybrid fiber reinforced UHPC
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F17%3A00312762" target="_blank" >RIV/68407700:21110/17:00312762 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1063/1.4994513" target="_blank" >http://dx.doi.org/10.1063/1.4994513</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.4994513" target="_blank" >10.1063/1.4994513</a>
Alternative languages
Result language
angličtina
Original language name
Simultaneous thermal analysis and thermodilatometry of hybrid fiber reinforced UHPC
Original language description
Development of concrete technology and the availability of variety of materials such as silica fume, mineral microfillers and high-range water-reducing admixtures make possible to produce Ultra-High Performance Concrete (UHPC) with compressive strength higher than 160 MPa. However, UHPC is prone to spall under high temperatures what limits its use for special applications only, such as offshore and marine structures, industrial floors, security barriers etc. The spalling is caused by the thermal stresses due to the temperature gradient during heating, and by the splitting force owing to the release of water vapour. Hybrid fibre reinforcement based on combination of steel and polymer fibres is generally accepted by concrete community as a functional solution preventing spalling. In this way, Ultra-High Performance Fibre Reinforced Concrete (UHPFRC) is produced possessing high mechanical strength, durability and resistance to water and salt ingress. Since UHPFRC find use in construction industry in tunnel linings, precast tunnel segments, and high-rise buildings, its behaviour during the high-temperature exposure and its residual parameters are of the particular importance. On this account, Simultaneous Thermal Analysis (STA) and Thermodilatometry Analysis (TDA) were done in the paper to identify the structural and chemical changes in UHPFRC during its high-temperature load. Based on the experimental results, several physical and chemical processes that studied material underwent at hightemperatures were recognized. The obtained data revealed changes in the composition of the studied material and allowed identification of critical temperatures for material damage.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)
Result continuities
Project
<a href="/en/project/GA15-05791S" target="_blank" >GA15-05791S: Analysis of physical and chemical processes in hybrid-fiber reinforced high performance cement-based composites induced by high-temperature loading</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
THERMOPHYSICS 2017: 22nd International Meeting of Thermophysics 2017 and 4th Meeting of EnRe 2017
ISBN
978-0-7354-1546-1
ISSN
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e-ISSN
1551-7616
Number of pages
6
Pages from-to
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Publisher name
American Institute of Physic AIP
Place of publication
Santa Fe
Event location
Těrchová
Event date
Sep 12, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000426600400038