AAAE ACE Modules 1 - 4 | 720 Questions with 100% Correct Answers | Verified | 2023 | 108 Pages

What are the two major categories of pavement? - Flexible and rigid What are some types of flexible pavement? - Grass, dirt, gravel and asphalt Why are paved surfaces necessary at airports? - To support the critical loads imposed on them; to produce a smooth, skid-resistant and safe-riding surface What is the benefit of using a rigid pavement such as Portland Cement Concrete? - It is about half the lifetime cost of asphalt, with a service life of 30+ years versus 5-15 years for asphalt. Concrete is more expensive up front though, so asphalt is common at low revenue airports such as GA. What are two major elements that make pavements deteriorate? - weathering and aircraft loads For bearing strengths of 12,500lbs or greater, what method is used to express the effect of an individual aircraft on different pavements? - Comparing ACN to PCN (Aircraft Classification Number-Pavement Classification Number) ACN less than or equal to PCN