Nanomechanical 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%2F18%3A00321135" target="_blank" >RIV/68407700:21110/18:00321135 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.760.251" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/KEM.760.251</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.760.251" target="_blank" >10.4028/www.scientific.net/KEM.760.251</a>
Alternative languages
Result language
angličtina
Original language name
Nanomechanical Performance of Interfacial Transition Zone in Fiber Reinforced Cement Matrix
Original language description
This paper shows a micromechanical study of interfacial transition zone (ITZ) around steel fiber in cement paste. It investigates microstructure and mechanical performance of the ITZ by a combination of nanoindentation and scanning electron microscopy (SEM). The investigated specimens were made from cement CEM I 42.5R paste with dispersed reinforcement in the form of steel fiber TriTreg 50 mm. The SEM demonstrated larger porosity and smaller portion of clinkers in the ITZ. Nanoindentation delivered values of elastic modulus, hardness and creep parameters around the fiber. An average value of elastic modulus in ITZ was at the level of 67% in comparison with cement bulk and the width of ITZ was about 40 μm. The value of hardness was found to be 60% of the average hardness of the bulk cement paste. The measured load-displacement curves were used for calculation of creep indentation parameter (CIT) and the creep compliance function. An average value of the creep compliance in the ITZ was found to be two times higher than in the cement bulk.
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
20101 - Civil 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
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Special Concrete and Composites 2017
ISBN
978-3-0357-1240-7
ISSN
1013-9826
e-ISSN
1662-9795
Number of pages
6
Pages from-to
251-256
Publisher name
Transtech Publications
Place of publication
Zürich
Event location
Skalský Dvůr
Event date
Oct 10, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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