Properties of Fine-Grained Concrete with Admixture of Diatomite Powder
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00333265" target="_blank" >RIV/68407700:21110/19:00333265 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/1757-899X/603/2/022045" target="_blank" >http://dx.doi.org/10.1088/1757-899X/603/2/022045</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1757-899X/603/2/022045" target="_blank" >10.1088/1757-899X/603/2/022045</a>
Alternative languages
Result language
angličtina
Original language name
Properties of Fine-Grained Concrete with Admixture of Diatomite Powder
Original language description
The paper reports on the experimental assessment of the physical properties of finegrained cement-based composites whose composition was enriched with admixture of diatomite powder. Diatomaceous earth, due to its origin and availability, represents highly valuable low cost material that can dispose with high pozzlanic activity. On this account, it can help to mitigate the quantity of used Portland cement, and thus enable to reduce the cost of produced cementbased composites, and accordingly decrease harmful environmental impacts of cement production, especially CO2 emission. In this work, possible use of diatomite powder as partial Portland cement replacement in concrete compoistion was studied. The cement replacement ratio was 5 %, 10 %, 15 %, and 20 % by volume. Reference concrete mixture was prepared as well. The water/binder ratio was 0.5, and was kept similar for all prepared composite mixtures. For 28 days water cured samples, bulk density, specific density, strength parameters, and thermophysical properties were tested. Results of experimental analysis showed high pozzolanic activity of diatomite resulting in reduced porosity and increased mechanical resistance of the developed concretes. The highly porous structure of diatomite particles helped to decrease concrete heat transport properties, despite of low total open porosity of the tested specimens.
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
20501 - Materials engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
IOP Conf. Series: Materials Science and Engineering
ISBN
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ISSN
1757-899X
e-ISSN
1757-899X
Number of pages
6
Pages from-to
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Publisher name
IOP Publishing Ltd.
Place of publication
Bristol
Event location
Praha
Event date
Jun 17, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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