Pavement Maintenance Guidelines for General Aviation Airport Management (2016) / Chapter Skim
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Pages 31-52
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31 A P P E N D I X A The following information comes from Asphalt Surfaced Airfields: PAVER™ Distress Manual (U.S. Army Corps of Engineers 2009)
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32 Pavement Maintenance Guidelines for General Aviation Airport Management Cracking Problems Longitudinal (Non-PCC Joint Reflective) Description Parallel to the pavement's center line or laydown direction.
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Asphalt Distress Types and Descriptions 33 Longitudinal Cracking (Non-PCC Joint Reflective) Severity Levels Low Few Cracks Many Cracks
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34 Pavement Maintenance Guidelines for General Aviation Airport Management Longitudinal Cracking (Non-PCC Joint Reflective) Severity Levels Medium High
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Asphalt Distress Types and Descriptions 35 Transverse Cracking (Non-PCC Joint Reflective) Description Extend across the pavement at approximately right angles to the pavement's center line or direction of laydown.
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36 Pavement Maintenance Guidelines for General Aviation Airport Management Transverse Cracking (Non-PCC Joint Reflective) Severity Levels (20 or 50 ft)
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Asphalt Distress Types and Descriptions 37 Edge Cracking (Non-PCC Joint Reflective) Description Occur within 4 ft of the edge.
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38 Pavement Maintenance Guidelines for General Aviation Airport Management Edge Cracking (Non-PCC Joint Reflective) Severity Levels Low Medium High
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Asphalt Distress Types and Descriptions 39 Joint Reflection Cracking from PCC (Longitudinal and Transverse) Description Occurs only on pavements having an asphalt or tar surface over a PCC slab.
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40 Pavement Maintenance Guidelines for General Aviation Airport Management Joint Reflection Cracking from PCC (Longitudinal and Transverse) Severity Levels Low Medium High
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Asphalt Distress Types and Descriptions 41 Block Cracking Description Interconnected cracks that divide the pavement into approximately rectangular pieces. May range in size from approximately 1 ft by 1 ft to 10 ft by 10 ft (0.3 m by 0.3 m to 3 m by 3 m)
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42 Pavement Maintenance Guidelines for General Aviation Airport Management Block Cracking Severity Levels Low Medium High
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Asphalt Distress Types and Descriptions 43 Alligator or Fatigue Cracking Description A series of interconnecting cracks caused by fatigue failure of the AC surface under repeated traffic loading. The cracking initiates at the bottom of the AC surface (or stabilized base)
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44 Pavement Maintenance Guidelines for General Aviation Airport Management Alligator (Fatigue) Cracking Severity Levels Low Medium High
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Asphalt Distress Types and Descriptions 45 Surface Distress Weathering (Surface Wear) -- Dense Mix Asphalt Description The wearing away of the asphalt binder and fine aggregate matrix from the pavement surface.
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46 Pavement Maintenance Guidelines for General Aviation Airport Management Raveling Description Dislodging of coarse aggregate particles from the pavement surface. How to Measure Measured in ft2 (m2)
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Asphalt Distress Types and Descriptions 47 Raveling Severity Levels Low High
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48 Pavement Maintenance Guidelines for General Aviation Airport Management Patching Description A defect, no matter how well it is performing. How to Measure Measured in ft2 (m2)
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Asphalt Distress Types and Descriptions 49 Patching Severity Levels Low Medium High
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50 Pavement Maintenance Guidelines for General Aviation Airport Management Roughness Roughness, as used in this tool, is a combination of several distress types, which are corrugation, depression, and swell. Regardless of the distress type, select the category that matches the impact of the distress.
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Asphalt Distress Types and Descriptions 51 Depression Description Localized pavement surface areas having elevations slightly lower than those of the surrounding pavement. In many instances, light depressions are not noticeable until after a rain, when ponding water creates birdbath areas, but the depressions can also be located without rain because of stains created by ponding of water.
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52 Pavement Maintenance Guidelines for General Aviation Airport Management Swell Description An upward bulge in the pavement's surface. May occur sharply over a small area or as a longer, gradual wave.
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