Case 2 – tile de-bonding

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Introduction

Type of Building: Residential

This is a case where the failure mode is within the screed. Tiles installed using adhesion method may de-bond from the substrate when the imposed stresses exceed that of its bond strength. The anatomy of a tiling system by adhesion method is shown below:

The de-bonding may occur between or within any of the interfaces, between elements or within an element, or a combination of the above. Examination of the failure mode is hence important for devising the optimum remedial action.

A direct shear test to examine the failure mode of a tiling system