CHANGES OF CONCRETE CHEMICAL COMPOSITION DUE TO THERMAL LOADING DETECTED BY DTA ANALYSIS
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F15%3APU115733" target="_blank" >RIV/00216305:26110/15:PU115733 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
CHANGES OF CONCRETE CHEMICAL COMPOSITION DUE TO THERMAL LOADING DETECTED BY DTA ANALYSIS
Original language description
The new types of concrete for example high performance concrete (HPC) have higher compressive strength and durability thanks to their lower porosity and denser microstructure. In case of fire the low amount of pores may cause explosive spalling, which can lead to collapse of the entire construction. Besides porosity, there are several other factors and effects which contribute to the formation of explosive spalling. The determining effect seems to be the evaporation of chemically or physically bound water, which is accompanied by volume changes of the CSH phases and gel particles. One of the methods used to gather knowledge concerning changes of chemical components of concrete is the differential thermal analysis (DTA). In this study basic informationabout chemical changes and liberation respectively desorption of water in the microstructure of high strength concrete is given. The obtained knowledge leads to better understanding of the basics of explosive spalling and crack formation
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JN - Civil engineering
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
4th International Workshop on Concrete Spalling due to Fire Exposure
ISBN
978-3-9814523-6-5
ISSN
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e-ISSN
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Number of pages
9
Pages from-to
32-40
Publisher name
MFPA Leipzig GmbH
Place of publication
Leipzig, Germany
Event location
Leipzig
Event date
Oct 8, 2015
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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