Pavement Maintenance Guidelines for General Aviation Airport Management (2016) / Chapter Skim
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Pages 53-69
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From page 53... ...
53 The following information comes from Asphalt Surfaced Airfields: PAVER™ Distress Manual (U.S. Army Corps of Engineers 2009)
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From page 54... ...
54 Pavement Maintenance Guidelines for General Aviation Airport Management Joint Problems Joint Seal Damage Description Any condition that enables soil or rocks to accumulate in the joints or allows significant infiltration of water. Accumulation of incompressible materials prevents the slabs from expanding and may result in buckling, shattering, or spalling.
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Concrete Distress Types and Descriptions 55 Low Medium High Severity Levels Joint sealer is in generally good condition throughout the sample. Sealant is performing well with only a minor amount of any of the above types of damage present.
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56 Pavement Maintenance Guidelines for General Aviation Airport Management Joint Seal Damage Severity Levels Low Medium High
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Concrete Distress Types and Descriptions 57 Spalling For the purposes of this tool, the two types of spalling (transverse/longitudinal joint and corner) are combined.
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58 Pavement Maintenance Guidelines for General Aviation Airport Management Corner Description Raveling or breakdown of the slab within approximately 2 ft (0.6 m) of the corner.
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Concrete Distress Types and Descriptions 59 Spalling (Corner) Severity Levels Low Medium High
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60 Pavement Maintenance Guidelines for General Aviation Airport Management Cracking Longitudinal, Transverse, and Diagonal (L/T/D) Cracks (Mid-Panel Crack)
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Concrete Distress Types and Descriptions 61 Longitudinal, Transverse, and Diagonal (Mid-Panel) Crack Severity Levels (20% or 40% Slabs)
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62 Pavement Maintenance Guidelines for General Aviation Airport Management Corner Break Description A crack that intersects the joints at a distance of less than or equal to one-half of the slab length on both sides, measured from the corner of the slab. For example, a slab with dimensions of 25 ft by 25 ft (7.5 by 7.5 m)
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Concrete Distress Types and Descriptions 63 Corner Break Severity Levels (10% or 30% Slabs) Low Medium High
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64 Pavement Maintenance Guidelines for General Aviation Airport Management Shattered Slab/Intersecting Cracks Description Cracks that break the slab into four or more pieces due to overloading or inadequate support, or both. The high-severity level of this distress type, defined as follows, is referred to as shattered slab.
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From page 65... ...
Concrete Distress Types and Descriptions 65 Shattered Slab/Intersecting Cracks Severity Levels (10% or 30% Slabs) Medium High
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66 Pavement Maintenance Guidelines for General Aviation Airport Management Surface Distress Patching Description An area where the original pavement has been removed and replaced by a filler material -- large (over 5 ft2 [0.5 m2]
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Concrete Distress Types and Descriptions 67 Patching Severity Levels (30% or 50% Slabs) Low Medium High
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68 Pavement Maintenance Guidelines for General Aviation Airport Management Settlement or Faulting Description A difference of elevation at a joint or crack caused by upheaval or consolidation. How to Count In counting settlement, a fault between two slabs is counted as one slab.
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From page 69... ...
Concrete Distress Types and Descriptions 69 Settlement or Faulting Severity Levels (10% or 30% Slabs) Low Medium High
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