Your encyclopedia of terms used in the industrial flooring industry.

Joint Deterioration

Summary

Joint Deterioration - Over the working life of a concrete slab, some of the joints are likely to deteriorate to some extent, especially if they are heavily trafficked by MHE.

Technical Information

The most common mode of joint deterioration is the wearing of the arris (feather edge). This can be caused by a joint which has opened too wide, or has arrises which aren’t aligned vertically, being trafficked by MHE. It is found often in free-movement joints as these have the potential to open quite wide.

This wearing can be much reduced by the installation of a relatively hard joint sealant. Also, the use of joint armour helps to reduce the chance of the joint wearing in this way.

Sealant installation (or replacement) can fill in small areas of damage, but larger or more significant wear/ damage should be repaired using a resinous mortar and the cut-back and fill method.

Related Definitions

Tang , Joint Intersection , Pallet Trucks , Tied Joint , Armoured Joint Installation

Resources

The Concrete Society: Technical Report 34; Chapter 13.4.3
Floor Joint Arris Repair From CG Flooring Systems

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The CoGri Group, a leading international specialist in concrete flooring, with offices on every continent throughout the world

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