Evaluation of composite epoxy resin applicability for concrete coatings
Vitalii Bezgin, Agata Dudek
Quarterly No. 4, 2017 pages 221-225
DOI:
keywords: coating, composite materials, epoxy resins
abstract The developed composite materials based on epoxy resins show high adhesion to concrete surfaces and good mechanical properties. Thermoplastic epoxy resins with various (380, 1830, 10 800) molecular weights and added polysulfide rubber can be used as coatings and glues. The epoxy composite with 10 800 molecular weight had better mechanical and adhesive properties than those of lower molecular weights. In this work the tensile strength, compressive strength, shear strength, tensile elongation and thermodynamic properties were studied. The materials for the compounds are called thermoplastics, which turn into a plastic state when heated and again solidify on cooling. Hot melt adhesives were first produced at the beginning of the 1950s and every year their production has increased. The new composite copolymer material, based on Bisphenol A, can be used as a thermoplastic composition for concretes, as well as a component or coating for various materials. Their use allows one to achieve high-speed mass production, where they significantly reduce the production time and labor intensity. In this article corrosion processes in concrete and reinforced concrete structures as well as their capability of preventing chemical degradation were examined. Composite materials based on epoxy resins have a great potential to solve this problem. Numerous materials have been developed and examined in the context of use for coatings in reinforced concrete structures. It should be noted that with protective coatings, the physical and mechanical strength of concrete structures increases to 50%, the chemical resistance is improved by several times, while water resistance is increased by 150%. This study also examined the technology for applying epoxy coatings on concrete and reinforced concrete surfaces. The study demonstrated that the coatings enhance the properties of reinforced concrete structures.