Hydrate failure in ITZ governs concrete strength: A micro-to-macro validated engineering mechanics model
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F18%3A00482301" target="_blank" >RIV/68378297:_____/18:00482301 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.cemconres.2017.10.002" target="_blank" >https://doi.org/10.1016/j.cemconres.2017.10.002</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.cemconres.2017.10.002" target="_blank" >10.1016/j.cemconres.2017.10.002</a>
Alternative languages
Result language
angličtina
Original language name
Hydrate failure in ITZ governs concrete strength: A micro-to-macro validated engineering mechanics model
Original language description
Ever since the early days of Féret (1892) and Abrams (1919), concrete research has targeted at relating concrete composition to uniaxial compressive strength. While these activities were mainly characterized by empirical fitting functions, we here take a more fundamental approach based on continuum micromechanics. The loading applied at the concrete level, is first concentrated (“downscaled”) to maximum stresses related to cement paste volumes which are directly adjacent to the aggregates, i.e. to the interfacial transition zones (ITZ). These maximum stresses are further “downscaled” to the micron-sized hydrates, in terms of higher-order stress averages. The latter enter a Drucker-Prager failure criterion with material constants derived from nanoindentation tests. The model is successfully validated across the hydrate-to-concrete scales. Strength magnitude is governed by ITZ stress concentrations, and the water-to-cement ratio is its dominant mixture design parameter.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20102 - Construction engineering, Municipal and structural engineering
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Cement and Concrete Research
ISSN
0008-8846
e-ISSN
—
Volume of the periodical
103
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
18
Pages from-to
77-94
UT code for WoS article
000423245700006
EID of the result in the Scopus database
2-s2.0-85033576675