The effect of the composition of a concrete mixture on its volume changes
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F21%3A00540315" target="_blank" >RIV/68145535:_____/21:00540315 - isvavai.cz</a>
Alternative codes found
RIV/00216305:26110/21:PU139437
Result on the web
<a href="https://www.mdpi.com/1996-1944/14/4/828/htm" target="_blank" >https://www.mdpi.com/1996-1944/14/4/828/htm</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/ma14040828" target="_blank" >10.3390/ma14040828</a>
Alternative languages
Result language
angličtina
Original language name
The effect of the composition of a concrete mixture on its volume changes
Original language description
The presented research aims to clarify the specific effect of the individual components of concrete with Portland cement CEM I 42.5 R on the volume changes of concrete. The effect of the filler component was evaluated from the point of view of the composition and type of aggregate (crushed versus mined) and from the point of view of the mineralogical composition of the aggregate. Concrete formulas with a maximum aggregate grain size of 16 and 22 mm were assessed. The effect of the binder component on the shrinkage of the concrete was monitored on the concrete mixtures produced using the same aggregate and maintaining the same strength class of concrete, C 45/55. The effect of the addition of finely ground limestone, finely ground granulated blast furnace slag and coal high-temperature fly ash was monitored. It was found that the maximum aggregate grain and the type of grading curve do not have a significant effect on the volume changes of concrete. Concretes with mined aggregates showed lower shrinkage than concretes with crushed aggregates. The most significant is the effect of the type of aggregate on the volume changes in the first 24 h. Mineral additives have a positive effect on the elimination of the volume changes of concrete, while the addition of high-temperature fly ash proved to be the most suitable.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20101 - Civil engineering
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials
ISSN
1996-1944
e-ISSN
1996-1944
Volume of the periodical
14
Issue of the periodical within the volume
4
Country of publishing house
CH - SWITZERLAND
Number of pages
26
Pages from-to
828
UT code for WoS article
000624094000001
EID of the result in the Scopus database
2-s2.0-85101093209