Validation of micromechanical model for prediction of ITZ thickness of high-strength concrete containing secondary cementitious materials

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F20%3A00336655" target="_blank" >RIV/68407700:21110/20:00336655 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.4028/www.scientific.net/MSF.995.143" target="_blank" >https://doi.org/10.4028/www.scientific.net/MSF.995.143</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/MSF.995.143" target="_blank" >10.4028/www.scientific.net/MSF.995.143</a>

Result language
angličtina
Original language name
Validation of micromechanical model for prediction of ITZ thickness of high-strength concrete containing secondary cementitious materials
Original language description
The mechanical properties of a cementitious composite are strongly affected by interfacial transition zone (ITZ) between the matrix and the aggregates, mainly by its strength and thickness. A micromechanical model based on Mori-Tanaka scheme coupled with an estimation of deviatoric stress in ITZ was developed for evaluation of the effect of selected secondary cementitious materials (SCMs – silica fume, fly ash and metakaolin) on the properties of ITZ in high-strength concrete (HSC). The model was validated by means of comparison of predicted ITZ thickness with direct ITZ thickness measurements performed by a combination of scanning electron microscopy and grid nanoindentation. Very good agreement between the theoretical and experimental results was reached, therefore the developed micromechanical model can be used for further research and optimization of HSC containing SCMs. Silica fume was determined to be the most efficient supplementary cementitious material from the point of view of ITZ thickness reduction.
Czech name
—
Czech description
—

Project
<a href="/en/project/GA17-19463S" target="_blank" >GA17-19463S: Analysis of the relations between the microstructure and macroscopic properties of ultra-high performance concretes</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Frontiers of Composite Materials IV - Selected peer-reviewed papers from 4th International Conference on Frontiers of Composite Materials (ICFCM 2019) and 4th International Conference on Energy Engineering and Smart Materials (ICEESM 2019)
ISBN
978-3-0357-1596-5
ISSN
0255-5476
e-ISSN
—
Number of pages
6
Pages from-to
143-148
Publisher name
Transtech Publications
Place of publication
Zürich
Event location
Dublin
Event date
Jun 30, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
—

Similar results(10)