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PROBLEM
POSSIBLE CAUSE
REMEDY
Tearing of mat
See Causes “3-7”.
(full width)
11. Improper mat thickness.
Mat thickness must be twice size of.
the largest aggregate.
12. Cold mix temperature..
Check with asphalt plant for hotter
asphalt mix.
Mat texture
See Cause “12.
(center or outside streaks)
Mat texture
See Causes “1, 3-6, 11, 12”.
(non uniform)
Screed marks
See Causes “7, 8”.
Screed not responding
See Causes “6, 11, 12”.
to correction
Auger shadows
See Causes “3-5”.
Poor pre-compaction
See Causes “1, 11, 12”.
Poor longitudinal or
See Causes “2, 12”.
transverse joint.
Transvers cracking
See Causes “1-4, 6, 13”.
(checking).
Mat shoving under
See Causes “1-4, 6, 9, 13”.
Roller.
Bleeding or fat spots
See Cause “3, 4, 6, 13”.
in mat.
Roller marks.
See Causes “1, 2, 6, 9, 10”.
Poor mix compaction.
See Causes “1-4, 6, 9, 10, 12, 13”.
MATERIAL-DELIVERY-COMPACTION RELATED MAT PROBLEMS (Cont.)
Printed In U.S.A.
39
907389/AP297
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