UHPFRC at high temperatures – Simultaneous thermal analysis and thermodilatometry
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21610%2F16%3A00300230" target="_blank" >RIV/68407700:21610/16:00300230 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21110/16:00300230
Result on the web
<a href="http://scitation.aip.org/content/aip/proceeding/aipcp/10.1063/1.4955259" target="_blank" >http://scitation.aip.org/content/aip/proceeding/aipcp/10.1063/1.4955259</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.4955259" target="_blank" >10.1063/1.4955259</a>
Alternative languages
Result language
angličtina
Original language name
UHPFRC at high temperatures – Simultaneous thermal analysis and thermodilatometry
Original language description
Simultaneous Thermal Analysis (STA) and Thermodilatometry Analysis (TDA) are done to reveal the structural and chemical changes in UHPFRC during its high-temperature load. Based on the measured results, several physical and chemical processes that studied material underwent at high-temperatures are recognized. In the temperature interval from 25 to 300 °C, the liberation of physically bound water from pores and the dehydration reaction of C-S-H take place. Additionally, AFt and AFm phases dehydrate at 110 – 156 °C. Endothermic peat at 460 °C corresponds to the portlandite decomposition. At 575 °C, the α -> β transformation of quartz is found. This reaction is accompanied by a sharp endothermic heat flow peak and a volume expansion, whereas no change of mass is measured. In the temperature interval 580-800 °C, the calcite and C-S-H gels decomposition is monitored. At the temperature above 800 °C, there is one significant exothermal peak corresponding to a crystallization of wollastonite. In summary, STA and TDA data pointed out the structural changes in studied UHPFRC and allowed identification of critical temperatures for its damage.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JI - Composite materials
OECD FORD branch
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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
2016
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 2016: 21ST INTERNATIONAL MEETING
ISBN
978-0-7354-1410-5
ISSN
0094-243X
e-ISSN
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Number of pages
6
Pages from-to
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Publisher name
AIP Publishing, APL, the American Institute of Physics
Place of publication
Melville, NY
Event location
Terchová
Event date
Oct 12, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000380816400031