Resistance of concrete modified with styrene-acrylate based admixture to aggressive environment
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21610%2F19%3A00335139" target="_blank" >RIV/68407700:21610/19:00335139 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.5593/sgem2019/6.2/S26.032" target="_blank" >http://dx.doi.org/10.5593/sgem2019/6.2/S26.032</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5593/sgem2019/6.2/S26.032" target="_blank" >10.5593/sgem2019/6.2/S26.032</a>
Alternative languages
Result language
angličtina
Original language name
Resistance of concrete modified with styrene-acrylate based admixture to aggressive environment
Original language description
Article is describing results of an experimental program focused on development of concrete, resistant to impacts of low pH environment. To a very low pH (2-4) is concrete often exposed when used in agricultural production (for example for silage or hay silage pits). Therefore, its degradation with such a low pH is very fast. The experimental part of the work focused on modification of concrete with sealing admixture on the basis of styrene-acrylate. We prepared set of 3 concrete mixtures with different dosing of styrene-acrylate. We subsequently monitored resistance of these 3 mixtures and 1 reference mixture to a liquid aggressive environment with pH 2 and pH 3. Testing bodies prepared from these mixtures were set in the given environment for the period of 180 days and then tested. We used mechanical tests, pull-off tests and determination of depth of aggressive environment penetration in the concrete with help of SEM/EDS analysis. Polymer admixture had significant impact mainly on reduction of the depth of penetration of aggressive environment in the concrete. Positive impact of the admixture was however also noticed in resistance of concrete surface layers tested by pull-off tests. Generally, we can state that in dependence on the dose rate of polymer the concrete resistance to low pH increased.
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
20101 - Civil engineering
Result continuities
Project
<a href="/en/project/TH02020690" target="_blank" >TH02020690: The concrete with excellent resistance under aggressive media condition</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
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
19th International Multidisciplinary Scientific Geoconference SGEM 2019
ISBN
978-619-7408-89-8
ISSN
1314-2704
e-ISSN
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Number of pages
8
Pages from-to
247-254
Publisher name
STEF92 Technology Ltd.
Place of publication
Sofia
Event location
Albena
Event date
Jun 30, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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