UFC 3-270-04
15 March 2001
CHAPTER 4
FULL-DEPTH REPAIR OF PAVEMENTS
4.1. Purpose. When normal maintenance procedures can no longer correct the effects of
ordinary pavement wear or use, full-depth repair may become necessary to restore damaged
areas to their original condition. Full-depth repairs are generally necessary when slabs have
been shattered or have deteriorated to such an extent that the safe support of the required load is
no longer possible (Figure 4.1.).
4.2. Need for Full-Depth Repair. There are several types of distress that occur at or near
transverse joints which may require full-depth repair when classified as medium- or high-severity
level distress. Comprehensive distress manuals (TM 5-623 for vehicular pavements and
TM 5-826/AFR 93-5 for airfield pavements) are available which define distress and severity
levels. Types of distress that occur in rigid pavements which may justify full-depth repair when
classified as medium- or high-severity distresses include:
4.2.1. Blowup.
4.2.2. Corner break.
4.2.3. Durability ("D") cracking.
4.2.4. Patch deterioration.
4.2.5. Shattered slab (A slab broken into four or five pieces with some or all cracks of high
severity or a slab broken into six or more pieces with over 15 percent of the cracks of medium or
high severity).
4.2.6. Spalling (if spalling is one-half the slab thickness or deeper).
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