Table of Contents
- 4About the measurements, Materials you will need and Informative notes
- 5Materials continued and cutting list for the form
- 6The plans - dimensions
- 7The form plans - schematic
- 8Step 1.1 Cutting and assembling the frame pieces of the seat form
- 9Step 1.2 Cutting the plywood, the plastic, and assembling the seat form
- 10Step 1.3 Cutting the form pieces for the legs
- 11Step 1.4 Assembling the forms for the legs
- 12Step 1.5 Aligning and bolting the leg forms to the seat form
- 13Steps 2.1 to 2.3 Cutting, shaping and tying the mesh
- 14Concrete mix information
- 15Steps 3.1 to 3.2 Dry and wet mix
- 16Steps 4.1 to 4.3 Applying the release agent, half filling the seat form and placing the reinforcing
- 17Steps 4.4 to 4.5 Topping up the seat form and attach the leg forms to the seat form
- 18Step 4.6 Topping up the leg forms
- 19Step 4.7 Releasing the leg forms
- 20Step 4.8 Releasing the seat form
- 21Appendage: Easier options
Steps 3.1 to 3.2 Dry and wet mix
Step 3.1 The dry mix
Pour 4½ buckets of aggregate into the wheelbarrow and also 1 bucket of cement.
Give it a bit of a mix around with a spade.
Make a small crater in the top of the mix to take the water.
Note: aggregate is a mixture of different size stones ranging from 20mm (¾”) diameter maximum, down to the size of a grain of sand. The smaller stones fill up the cavity created by the bigger stones.
Step 3.2 The wet mix
Next add the water: approximately half a standard household bucket to begin with. Mix with the spade from underneath and fold over. Keep doing this and adding more water if required, until the mix is a uniform consistency.
Tip: when mixing, a smaller spade is easier to work with than a larger one.
Safety note: Prolonged contact with fresh concrete will burn your skin.
One mix will make one concrete seat.