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Mechanical fracture parameters of concrete drill-core specimens supported by a slenderness ratio study

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F21%3APU142740" target="_blank" >RIV/00216305:26110/21:PU142740 - isvavai.cz</a>

  • Alternative codes found

    RIV/68378297:_____/21:00564663

  • Result on the web

    <a href="https://iopscience.iop.org/issue/1757-899X/1209/1" target="_blank" >https://iopscience.iop.org/issue/1757-899X/1209/1</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1088/1757-899X/1209/1/012042" target="_blank" >10.1088/1757-899X/1209/1/012042</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Mechanical fracture parameters of concrete drill-core specimens supported by a slenderness ratio study

  • Original language description

    The detailed analytical and experimental investigation of the fracture behaviour of quasi-brittle materials is an endeavour which has been ongoing worldwide for many years. Such materials are usually characterized in terms of their mechanical fracture parameters, which are determined based on the evaluation of quasi-static fracture experiments. One of the most commonly used building materials with a quasi-brittle response is concrete, which is most often based on a cement matrix. It is sometimes also necessary to characterize concrete included in existing structures. In this case, test specimens are obtained by core drilling, and the investigation is conducted with the requirement to maximize the number of parameters obtained while minimizing the number of test specimens drilled from the structure. This paper focuses on the mechanical fracture parameters of core-drilled specimens taken from a selected concrete structure. Tests were performed on cylindrical specimens with a chevron-notched stress concentrator in the three-point bending configuration in order to determine modulus of elasticity, fracture toughness and fracture energy. Subsequently, theoretical compressive strength was estimated and tests for the determination of compressive strength values were performed focusing on dependence on the slenderness ratio, i.e. the relationship between the compressive strength and the length to diameter ratio of the cylindrical specimens. In relation to the obtained mechanical fracture parameters, selected specimens were analysed and three-dimensionally characterized via high-resolution X-ray computed tomography.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    20501 - Materials engineering

Result continuities

  • Project

    <a href="/en/project/GA19-09491S" target="_blank" >GA19-09491S: Multilevel determination of fracture–mechanical parameters for simulation of concrete structures (MUFRAS)</a><br>

  • Continuities

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

Others

  • Publication year

    2021

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    IOP Conference Series: Materials Science and Engineering

  • ISBN

  • ISSN

    1757-899X

  • e-ISSN

  • Number of pages

    16

  • Pages from-to

    1-16

  • Publisher name

    IOP Publishing Ltd

  • Place of publication

    neuveden

  • Event location

    Vysoké Tatry

  • Event date

    Oct 13, 2021

  • Type of event by nationality

    EUR - Evropská akce

  • UT code for WoS article