UFC 3-270-06
15 March 2001
CHAPTER 16
DISTRESS 54, SHOVING OF ASPHALT PAVEMENT
BY PCC SLABS
16.1. Description. PCC pavements occasionally increase in length at ends where they adjoin
flexible pavements (commonly referred to as "pavement growth"). This "growth" shoves the
asphalt- or tar-surfaced pavements, causing them to swell and crack. The PCC slab "growth" is
caused by a gradual opening of the joints as they are filled with incompressible materials that
prevent them from reclosing. Deduct curves for shoving of asphalt pavement by PCC slabs are
shown in Figure 16.1.
16.2. Severity Levels.
16.2.1. L. A slight amount of shoving has occurred, with little effect on ride quality and no
break-up of the asphalt pavement (Figure 16.2.).
16.2.2. M. A significant amount of shoving has occurred, causing moderate roughness or
break-up of the asphalt pavement (Figure 16.2.).
16.2.3. H. A large amount of shoving has occurred, causing severe roughness or break-up of
the asphalt pavement (Figure 16.3.).
16.3. How to Measure. Shoving is measured by determining the area in square feet (square
meters) of the swell caused by shoving.
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