Corrosion Properties and Bond Strength of Coated (PE/PAK; Pe/PPE; PAD) Reinforcement (B500B) with Normal Strength Concrete

The paper verifies anti-corrosion barrier protective properties of PE/PAK (polyethylene/polyacrylate), PE/PPE (polyethylene/polyproplylene) and PAD (polyamide) coatings of specific thickness on the surface of conventional ribbed bar B500B. Using pull-out test, the bond strength of such system was co...

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Bibliographic Details
Published in:Key engineering materials 2022-09, Vol.932, p.185-190
Main Authors: Prodanovic, Nikola, Pokorný, Petr, Holeček, Martin, Hurtig, Karel
Format: Article
Language:English
Subjects:
Acrylic resins
Bonding strength
Corrosion prevention
Epoxy coatings
Polyamide resins
Polyethylenes
Protective coatings
Pull out tests
Rebar
Thickness
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Summary:The paper verifies anti-corrosion barrier protective properties of PE/PAK (polyethylene/polyacrylate), PE/PPE (polyethylene/polyproplylene) and PAD (polyamide) coatings of specific thickness on the surface of conventional ribbed bar B500B. Using pull-out test, the bond strength of such system was compared with bond strength of normal strength concrete (C30/37). Results of these tests show that key properties of coated systems are comparable to the previously tested epoxy coatings in case of their use in technical practice (protection of conventional rebar). In conclusion, their effective protective effect corresponds to minimal thickness higher than 300 μm but simultaneously lower the bond strength between the ribbed rebar and concrete. Keywords: corrosion of steel in concrete, organic coatings, bond strength, pull-out test, porosity
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/p-z8sla8