Geoscience Reference
In-Depth Information
364
364
Macadam with crushed dacite aggregate (pale
green) and bitumen binder (black). Air void shown
yellow; PPT, ×35.
365
365
Same view as
364
in cross-polarized light. The
dacite aggregate appears grey, bitumen black, and an
air void is shown dark green; XPT, ×35.
366
366
Close view of hot-rolled asphalt with crushed
volcanic rock coarse aggregate particles (grey),
bitumen binder (dark brown), and calcium carbonate
filler (pink, encapsulated by the bitumen); XPT, ×150.
