Answers
Flexible Pavement - ANSWERSsurface made with hot mixed asphalt concrete
Rigid pavement - ANSWERSsurface made with portland cement concrete
pavement - ANSWERSis a layering system that provides:
-a strong structure to support loads
-a smooth wearing surface
-a skid resistant wearing surface
-a durable under environmental influence surface
surface - ANSWERS-asphalt for concrete surface
-prevent water penetration
-smooth and well loaded surface
-resists the traffic load
Base - ANSWERS-distributes the load to the foundation
-should hace sufficient quality
-made of asphalt or concrete
Sub Base - ANSWERS-When the subgrade is weak
-compacted granular material
Sub grade - ANSWERS-compacted soil
-foundation
-in situ soil
Bitumen - ANSWERSsticky, black and highly viscous material
-semi solid or liquid state
crude bitumen - ANSWERSnaturally occurring asphalt
refined bitumen - ANSWERSrefined residue from distillation of oil
asphalt cement - ANSWERS-semi solid at room temp
-most common for producing Hot mixed asphalt
-new performance grading system called SuperPave
asphalt emulation - ANSWERS-liquid at room temperature
-cold mix
-used to prevent coalescence of asphalt particles