Patch/Patch Deterioration

Description

A portion, greater than 0.1 m2, or all of the original concrete slab that has been removed and replaced, or additional material applied to the pavement after original construction.

Severity Levels

Low
Patch has, at most, low severity distress of any type; and no measurable faulting or settlement; pumping is not evident.

Moderate
Patch has moderate severity distress of any type; or faulting or settlement up to 6 mm; pumping is not evident.

High
Patch has a high severity distress of any type; or faulting or settlement ≥ 6 mm; pumping may be evident.

How to Measure

Record number of patches and square meters of affected surface area at each severity level, recorded separately by material type—rigid versus flexible. Note: Panel replacement shall be rated as a patch. Any sawn joints shall be considered construction joints and rated separately. All patches are rated regardless of location.