Micromechanical performance of interfacial transition zone in fiber-reinforced cement matrix
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F17%3A00314264" target="_blank" >RIV/68407700:21110/17:00314264 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/1757-899X/246/1/012018" target="_blank" >http://dx.doi.org/10.1088/1757-899X/246/1/012018</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1757-899X/246/1/012018" target="_blank" >10.1088/1757-899X/246/1/012018</a>
Alternative languages
Result language
angličtina
Original language name
Micromechanical performance of interfacial transition zone in fiber-reinforced cement matrix
Original language description
The paper investigates microstructure, chemical composition and micromechanical behavior of an interfacial transition zone (ITZ) in steel fiber reinforced cement matrix. For this goal, a combination of scanning electron microscopy (SEM), nanoindentation and elastic homogenization theory are used. The investigated sample of cement paste with dispersed reinforcement consists of cement CEM I 42,5R and a steel fiber TriTreg 50 mm. The microscopy revealed smaller portion of clinkers and larger porosity in the ITZ. Nanoindentation delivered decreased elastic modulus in comparison with cement bulk (67%) and the width of ITZ (~ 40 µm). The measured properties served as input parameters for a simple two-scale model for elastic properties of the composite. Although, no major influence of ITZ properties on the composite elastic behavior was found, the findings about the ITZ reduced properties and its size can serve as input to other microstructural fracture based models.
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
20102 - Construction engineering, Municipal and structural engineering
Result continuities
Project
<a href="/en/project/GA17-05360S" target="_blank" >GA17-05360S: Small-scale fracturing of amorphous and crystalline materials assessed with nanoindentation and focused ion beam</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
Fibre Concrete 2017
ISBN
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ISSN
1757-8981
e-ISSN
1757-899X
Number of pages
10
Pages from-to
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Publisher name
IOP Publishing Ltd
Place of publication
Bristol
Event location
Praha
Event date
Sep 13, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000423733300018