-Determine the workability
-Compacting factor apparatus is used
-1.Weigh the empty cylinder
-2.Place fresh concrete in upper hopper
-3.Open the gate & allow concrete to fall into lower hopper
-4.Open gate of lower hopper so that it falls into cylinder
-5.Cut off excess concrete from top of cylinder & weigh the cylinder containing concrete
-6.Deduct the weight of empty cylinder & new weight is called as the weight of partially compacted concrete
-7.Cylinder is filled again with fresh concrete & vibrated or tamped to obtain full compaction
-8.Concrete in cylinder is weight again & this is called as weight of fully compacted concrete
- Compacting Factor = Wt. Of partially compacted conc./Wt. Of fully compacted conc.
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