Thermally loaded concrete specimens: fractal dimensions of fracture surface and mechanical fracture parameters
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F20%3APU136445" target="_blank" >RIV/00216305:26110/20:PU136445 - isvavai.cz</a>
Result on the web
<a href="http://www.cecem.eu/publications/monograph_research_and_modelling_in_civil_engineering_2019.pdf" target="_blank" >http://www.cecem.eu/publications/monograph_research_and_modelling_in_civil_engineering_2019.pdf</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Thermally loaded concrete specimens: fractal dimensions of fracture surface and mechanical fracture parameters
Original language description
The chapter deals primarily with the fractal dimension of fracture surfaces of fractured concrete specimens after temperature loading. These specimens were obtained from experimental concrete panels after extensive fire experiments. The maximum temperatures in the furnace, to which the panels were exposed from one side, were nominally 550, 600, 800 and 1000 °C. The reference specimens without temperature load were also tested. Specimens of nominal dimensions 100 × 100 × 400 mm with central edge notch 33 mm were tested in a three-point bending configuration; load versus displacement diagrams were recorded, corrected and evaluated. Each set contained 4 specimens, a total of 20 specimens were processed. The basic mechanical fracture parameters were assessed: modulus of elasticity, effective fracture toughness, and specific fracture energy. Fracture surfaces (ligaments) of all tested specimens after above mentioned three-point bending tests were analyzed in detail. Ligaments were scanned via 2D laser profilometer and the fractal dimension of selected sections of these surfaces was measured. Estimation of the fractal dimension of the fracture surface sections was performed using the walking divider method. Finally, the chapter presents the correlation among the fractal dimensions, the temperatures of concrete in different distance from the heated side and the previously obtained and above-mentioned mechanical fracture parameters.
Czech name
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Czech description
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Classification
Type
C - Chapter in a specialist book
CEP classification
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OECD FORD branch
20101 - Civil engineering
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
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Book/collection name
Research and Modelling in Civil Engineering 2019
ISBN
978-83-7365-525-6
Number of pages of the result
24
Pages from-to
7-30
Number of pages of the book
150
Publisher name
Koszalin University of Technology Publishing House
Place of publication
Koszalin
UT code for WoS chapter
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