TM 5-826-6/AFR 93-5
Figure A-128. High severity joint spall case 1.
Figure A-129. High severity joint spay case 2
(3) Counting procedure. If the joint spall is located along the edge of one slab, it is counted as one slab with
joint sapling. If sapling is located on more than one edge of the same slab, the edge having the highest severity is counted
and recorded as one slab. Joint sapling can also occur along the edges of two adjacent slabs. If this is the case, each
slab is counted as having joint sapling.
ee. Sapling (corner), distress 75.
(1) Description. Corner sapling is the raveling or breakdown of the slab within approximately 2 feet of the
corner. A corner spall differs from a corner break in that the spall usually angles downward to intersect the joint while a
break extends vertically through the slab.
(2) Severity levels.
(a) Low severity level (L). One of two conditions exists.
- Spall is broken into one or two pieces diffident by low severity cracks with pieces not easily dislodged (little or no
- Spall is defined by one medium severity crack with little or no FOD potential (figs. A-130 and A-131).