Module 2 Flashcards
Airports must provide sufficient and qualified____ to comply with its ACM requirements.
Personnel
The two types of airfield pavement are ____ and ____.
Flexible, Rigid
Tends to compress under load.
Flexible
Resists compression under load.
Rigid
Types of flexible pavement
Grass, dirt, gravel, and asphalt
Airport pavements are designed, constructed, and maintained for _____ and ______.
- To support the critical loads imposed on them
2. To produce a smooth, skid resistant, and safe-riding surface.
Two factors contributing to pavement deterioration are ____ and ____.
- Weathering
2. Aircraft Loads
Flexible Pavement Cracking-
Longitudinal and transverse Block Reflection Alligator or fatigue Slippage
Flexible Pavement Disintegration-
Raveling Weathering Potholes Asphalt stripping Jet blast erosion Patching and utility cut patch
Flexible Pavement Distortion-
Rutting Corrugation Shoving Depressions Swelling
Flexible Pavement Loss of Skid Resistance-
Polished aggregate
Contaminants
Bleeding
Fuel or Oil Spillage
Rigid Pavement Cracking-
Longitudinal, transverse and diagonal Corner Breaks Durability Shrinkage Shattered slab Intersecting
Rigid Pavement Disintegration-
Scaling Map Cracking Alkali-Silica Reactivity (ASR) Joint Spalling Corner Spalling Blowups Popouts Patching
____ is any condition that enables incompressible foreign material such as soil or rocks to accumulate in the joints or that allows infiltration of water.
Joint seal damage
Rigid Pavement Distortion-
Pumping
Settlement
Faulting
Rigid Pavement Loss of Skid Resistance-
Polished aggregates
Contaminants
____ is a blend of asphalt and well-graded aggregates.
Hot-mix Asphalt
____ is a light application of emulsified asphalt applied to an existing pavement to provide a bond with an overlying course, such as and HMA overlay.
Tack Coat
____ is a blend of Portland cement, fine and coarse aggregate, and water, with or without additives.
Concrete
Part 139.305 (a) (1) requires pavement lips be no more than ____ in difference in elevation
Three inches
A hole on the airfield must not be greater than ____, ____ and ____.
Five inches wide, three inches deep and has a slope greater than 45 degrees
Aircraft landing distances may be increased by ____ or more on wet pavement.
15 percent
Occurs on any surface, generally at high speed. Water builds up in front of a rolling tire, which allows it to ride on a cushion of water, losing contact with the runway surface.
Dynamic Hydroplaning
Occurs at lower speeds, when a tire encounters a slippery surface from oils, grease, dirt and rubber combine with water or other liquid.
Viscous Hydroplaning