Compost bin manufacture
Practical Action
Plate-04. Credit: Practical Action South Asia
C) Bottom, middle and top rings (depend on the design)
1. Get three separate moulds for top middle and bottom rings (correctly fix all components of
each mould using bolt and nuts).
Before fixing the ring parts of the mould, some burnt oil (oil from petrol vehicles is preferable)
can be applied to the inner side of the mould. It makes it easier to remove the blocks form the
mould.
2. Locate the moulds on levelled ground (Plate 05 and 06).
23”
21”
14”
Plate-05
Credit: Practical Action South Asia
Plate -06
3. Get the concrete mixture and pour it in to the moulds to fill 1-1.5” from the bottom (Plate -
07).
4. Insert first iron ring between inner and outer moulds – should not touch the walls of the
moulds
5. Fixed the plugs for aeration holes in all bins (Plate-09)
6. Add concrete mixture gradually and spread it uniformly with a stick (Plate -08)
Plate- 07
3
Plate -08 Credit: Practical Action South Asia