Peer-reviewed articles 17,970 +


Title: FUNCTIONALITY OF TWO-COAT SYSTEM FOR CONCRETE PROTECTION AND REPAIR
FUNCTIONALITY OF TWO-COAT SYSTEM FOR CONCRETE PROTECTION AND REPAIR

PlumX Article Metrics by Elsevier
Zbysek Pavlik; Adam Pivak; Milena Pavlikova
10.5593/sgem2024/6.1/s26.37
10.5593/sgem2024/6.1
1314-2704
978-619-7603-74-3
English
24
6.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Green Buildings Technologies and Materials
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.
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Authors greatly acknowledge the financial support received from the Technology Agency of the Czech Republic under project No FW03010256 - Development and research of advanced materials for the protection and repair of concrete structures. The authors are grateful to F. Fara from company Coming Plus, Inc. for preparing and supplying the samples.
conference
https://doi.org/10.5593/sgem2024/6.1/s26.37
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Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
24th International Multidisciplinary Scientific GeoConference SGEM 2024, 1 - 7 July, 2024
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
255-262
1 - 7 July, 2024
website
9805
concrete repair and protection, two-coat system, synthetic epoxy resin, mechanical strength, freeze-thaw resistance, water absorption, de-icing salts scaling

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