TYPE OF BACKFILL	DISADVANTAGES
Sand	Sand faces possible migration, inconsistency, and difficulty in achieving required compaction - especially in wet conditions! Compaction also must take place in shallow lifts.
Aggregate Backfill Material	Crushed Rock has similar disadvantages to that of sand. These materials may have plastic fines, difficulty in achieving the required compaction, difficulty compacting in wet conditions, and requires compaction in shallow lifts, which is time consuming and costly.
CLSM by Ready Mix	CLSM produced by Ready Mix cannot offer a quick set time because the amount of time it takes to reach a site is always unknown. Except for rare circumstances, more material must be ordered than is needed. Truck wait time is expensive and Ready Mix delivery after regular business hours can be extremely costly.
CLSM w/ Bottom Ash	CLSM produced with bottom ash is not as pumpable as Geofill or other products. Materials are not readily available in many areas.
CLSM by GEOFILL	NONE!! Geofill is an economical, rapid setting, self- leveling/compacting, pumpable material. Available 24 hours a day 7 days a week