Influence of Interfacial Transition Zone on Local and Overall Fracture Response of Cementitious Composites

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F18%3APU129308" target="_blank" >RIV/00216305:26110/18:PU129308 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21110/18:00325898
Result on the web
<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.784.97" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/KEM.784.97</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.784.97" target="_blank" >10.4028/www.scientific.net/KEM.784.97</a>

Result language
angličtina
Original language name
Influence of Interfacial Transition Zone on Local and Overall Fracture Response of Cementitious Composites
Original language description
Mechanical fracture properties of interfacial transition zone (ITZ) of fine-grained composite based on cement matrix with different types – basalt, granite, marble and amphibolite – of rock inclusion were studied. Specimens with the initial stress concentrator were tested in standard three-point bending configuration. Fracture surfaces were examined with light and electron microscopes. Local ITZ response was characterized by nanoindentation in the vicinity of rock inclusions. Local elasticity, hardness and viscous properties were assessed. It has been shown that the ITZ is mechanically weaker compared to the bulk matrix in the region of ca. 0–20 m from the inclusion for all specimen’s types. It exhibits gradual increase of elastic modulus and hardness, which can be approximately expressed by a power law. On the other hand, the creep in ITZ was found to be higher compared to the bulk matrix. The results of nanoindentation measurements are in a good agreement with overall mechanical properties, fracture response and microstructure measurements done by scanning electron microscopy.
Czech name
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Czech description
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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)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Key Engineering Materials: Local Mechanical Properties XIII
ISBN
978-3-0357-1242-1
ISSN
1013-9826
e-ISSN
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Number of pages
6
Pages from-to
97-102
Publisher name
Trans Tech Publications
Place of publication
Switzerland
Event location
Košice
Event date
Nov 6, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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