Joint Seal Damage

Description

Joint seal damage is any condition which enables incompressible materials or water to infiltrate the joint from the surface. Typical types of joint seal damage are:

Extrusion, hardening, adhesive failure (bonding), cohesive failure (splitting), or complete loss of sealant.

Intrusion of foreign material in the joint.

Weed growth in the joint.

5a. TRANSVERSE JOINT SEAL DAMAGE

Severity Levels

Low
Joint seal damage as described above exists over less than 10 percent of the joint.

Moderate
Joint seal damage as described above exists over 10-50 percent of the joint.

High
Joint seal damage as described above exists over more than 50 percent of the joint.

How to Measure

Indicate whether the transverse joints have been sealed (yes or no). If yes, record number of sealed transverse joints at each severity level. Any joint seal with no apparent damage is considered to be low severity.

5b. LONGITUDINAL JOINT SEAL DAMAGE

Severity Levels

None.

How to Measure

Record number of longitudinal joints that are sealed (0, 1, 2). Record total length of sealed longitudinal joints with joint seal damage as described above. Individual occurrences are recorded only when at least 1 m in length.