A novel interpenetrating polymer network coating for the protection of steel reinforcement in concrete
A cost-effective better performing epoxy/phenolic interpenetrating polymer network (IPN) coating for the protection of steel reinforcement in concrete exposed to aggressive environment (marine and industrial) has been developed. Physicomechanical properties along with chemical resistance against some acids, alkalines, fertilizers, and water have been determined. To assess the corrosion protection efficacy from end use application, point of view chemical resistance, adhesion by bend test, bond strength by pull-out test method, and accelerated corrosion cycling test by weight change method have been performed. On the basis of the data, it may be concluded that the IPN-coated reinforcing rebars have acceptable bond strength with concrete, and have better corrosion resistance than other commercially available treatment used for similar applications. The economics of the treatment is quite attractive since treatment costs about 15 to 20% of the cost of steel. Hence it may be said that IPN-coated reinforcing steel bars fulfill the minimum requirements laid down in various standard specifications.
- Research Organization:
- Central Building Research Inst., Roorkee (IN)
- OSTI ID:
- 20002042
- Journal Information:
- Cement and Concrete Research, Vol. 29, Issue 10; Other Information: PBD: Oct 1999
- Country of Publication:
- United States
- Language:
- English
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