Spalling of Longitudinal Joints

Description

Cracking, breaking, chipping, or fraying of slab edges within 0.3 m from the
face of the longitudinal joint.

Severity Levels

Low
Spalls < 75 mm wide, measured to the face of the joint, with loss of material,
or spalls with no loss of material and no patching.

Moderate
Spalls 75 mm to 150 mm wide, measured to the face of the joint, with loss of material.

High
Spalls > 150 mm wide, measured to the face of the joint, with loss of material or is broken into two or more pieces or contains patch material.

How to Measure

Record length in meters of longitudinal joint affected at each severity level. Only record spalls that have a length of 0.1 m or more. Spalls that have been repaired by completely removing all broken pieces and replacing them with patching material (rigid or flexible) should be rated as a patch. If the boundaries of the spall are visible, then also rate as a high severity spall. Note: All patches meeting size criteria are rated as patches.