TABLE OF CONTENTS The following notation is used in this chapter:
| Symbol | Definition |
|---|---|
| G s | Specific gravity of solids |
| M | Mass of compacted soil |
| M c | Mass of empty container (water content test) |
| M dc | Mass of container plus dry soil (water content test) |
| M F | Mass of mold and compacted soil |
| M 0 | Mass of empty compaction mold |
| M s | Mass of solids (water content test) |
| M w | Mass of water (water content test) |
| M wc | Mass of container plus wet soil (water content test) |
| RC | Relative compaction |
| V | Volume of compaction mold |
| w | Water content (also known as moisture content) |
| w opt | Optimum moisture content |
| ? d | Dry density of compacted soil |
| ? dmax | Laboratory maximum dry density |
| ? t | Wet density |
| ? w | Density of water |
| ? z | Vertical axis value of dry density for plotting the zero air voids curve |
The next two chapters deal with the compaction of fill. There are many different types of fill, such as hydraulic fill, structural fill, dumped or uncompacted fill, debris fill, and municipal landfill. Table 10.1 presents a discussion of the typical characteristics, uses, and possible engineering problems for these different types of fill. Chapters 10 and 11 specifically deal with the compaction of structural fill, which is used for all types of earthwork and grading projects.
| Main category | Typical characteristics and uses | Possible engineering problems |
|---|---|---|
| Hydraulic fill | This refers to a fill placed by transporting soils through a pipe using... |
