UFC 3-270-05
15 March 2001
5.3. Reinforced Concrete Severity Levels.
5.3.1. L. (1) Nonfilled crack, 1/8 inch (3.2 millimeters) to 1/2 inch (12.7 millimeters) wide, with
no faulting or spalling; (2) filled or nonfilled cracks of any width <1/2 inch (12.7 millimeters), with
low-severity spalling; or (3) filled cracks of any width (filler satisfactory), with no faulting or
spalling. (Note: Crack less than 1/8 inch (3.2 millimeters) wide with no spalling or faulting should
be counted as shrinkage cracking.)
5.3.2. M. (1) Nonfilled cracks, 1/2 inch (12.7 millimeters) to 1 inch (25.4 millimeters) wide, no
faulting or spalling; (2) filled cracks of any width, with faulting <3/8 inch (9.6 millimeters) or
medium-severity spalling; or (3) nonfilled cracks of width < 1 inch with faulting < 3/8 inch or
medium-severity spalling.
5.3.3. H. (1) Nonfilled cracks of width >1 inch (25.4 millimeters); (2) nonfilled cracks of any
width, with faulting >3/8 inch (9.6 millimeters) or medium-severity spalling; or (3) filled cracks of
any width, with faulting >3/8 inch (9.6 millimeters) or high-severity spalling.
5.4. How to Count. Once the severity has been identified, the distress is recorded as one slab.
If a crack is repaired by a narrow patch (e.g., 4 to 10 inches (102 to 254 millimeters) wide), only
the crack and not the patch should be recorded at the appropriate severity level.
5.5. Options for Repair.
5.5.1. L. Do nothing; seal cracks.
5.5.2. M. Seal cracks.
5.5.3. H. Seal cracks; full-depth patch; slab replacement.
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