Multi-Scale Evaluation of the Interphase Zone between the Overlay and Concrete Substrate: Methods and Descriptors

Łukasz Sadowski

doi:10.3390/app7090893

Abstract

This article presents the problem of examining the interphase zone between the overlay and concrete substrate at different levels of observation. The possibility of applying available modern research methods in order to examine the interphase zone with regard to the level of observation is presented. These levels were defined in the paper. Examples of tests that show a possible approach to the examination of the interphase zone are also presented.

Highlights

The durability of layered concrete elements, both newly executed elements and surfaceThe durability of layered concrete elements, both newly executed elements and surface corroded elements that were repaired by the application of repair concrete, is strongly dependent on corroded elements that were repaired by the application of repair concrete, is strongly dependent on an appropriate adhesion between layers [1,2,3,4]
Taking the above into consideration, the purpose of this paper is to indicate the possibilities of using both available modern testing methods and descriptors that are assessed using these methods in order to evaluate the interphase zone between the overlay and concrete substrate at various levels of observation
2nd level—at this level the interphase zone is evaluated on the basis of the physical and mechanical properties of the concrete of the substrate layer and the overlay, as well as on the basis mechanical properties of the concrete of the substrate layer and the overlay, as well as on the of the surface morphology of the substrate layer, basis of the surface morphology of the substrate layer

Summary

Introduction

The durability of layered concrete elements, both newly executed elements and surface corroded elements that were repaired by the application of repair concrete, is strongly dependent on corroded elements that were repaired by the application of repair concrete, is strongly dependent on an appropriate adhesion between layers [1,2,3,4]. This appropriate adhesion is defined in standard as an appropriate adhesion between layers [1,2,3,4]. Thesemantic semanticand andetymological etymological context of the evaluation ofbond the bond between concrete (based on [6]).on [6]). layers

Objectives

Methods

Conclusion