Functionality of two-two coat system for concrete protection and repair

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F24%3A00379992" target="_blank" >RIV/68407700:21110/24:00379992 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.5593/sgem2024/6.1/s26.37" target="_blank" >https://doi.org/10.5593/sgem2024/6.1/s26.37</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5593/sgem2024/6.1/s26.37" target="_blank" >10.5593/sgem2024/6.1/s26.37</a>

Result language
angličtina
Original language name
Functionality of two-two coat system for concrete protection and repair
Original language description
This paper presents the experimental evaluation of the effectiveness of a newly developed two-coat system (TCS) for the protection and repair of concrete. The optimized system consists of a penetrating layer of modified low-viscosity resin of BPA (bisphenol A) type and a top coat based on aliphatic polyisocyanate resin of HDI (hexametyl diisocyanate) type. TCS was applied to reference concrete specimens, which were subjected to various tests to evaluate their basic physical properties, mechanical strength, hygric properties, freeze-thaw resistance and resistance to de-icing salts. The application of TCS reduced the porosity, enhanced the freeze-thaw resistance, and greatly decreased the water absorption coefficient and 24-h water absorption. The treated specimens exhibited high resistance to de-icing salt even up to 125 testing cycles. Taking into consideration the fact that the control samples without any surface modification were completely cracked by coupled salt crystallization and freeze-thaw action, the improvement in the properties of treated concrete was quite substantial and promising for full-scale application on construction sites.
Czech name
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Czech description
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Project
<a href="/en/project/FW03010256" target="_blank" >FW03010256: Development and research of advanced materials for the protection and repair of concrete structures</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
ISBN
978-619-7603-74-3
ISSN
1314-2704
e-ISSN
1314-2704
Number of pages
7
Pages from-to
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Publisher name
STEF92 Technology Ltd.
Place of publication
Sofia
Event location
Albena
Event date
Jun 29, 2024
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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