Abstract
The paper presents the role of a bond layer in the repair process of concrete and reinforced concrete elements as well as the place of its laying. For the purpose of a detailed analysis of the above problems two series of tests were carried out. In the first series of the tests, the influence of the state of the surface under repair (wet, oiled) on the adhesion of the bond layer is taken into account. In the second series, the influence of surface modification, grade of concrete and the placement of layers on the adhesion of bond layer to the surface was tested. It was shown that the use of a proposed polymer surface layer was possible both on wet and oil-contaminated surfaces. It was also proved that the adhesion of levelling layer (polymer–cement filler) to concrete is lower after sandblasting. The usage of the levelling layer under the polymer bond layer weakens their adhesion.
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