Table of Contents
- 1Cover
- 2Preface
- 3Introduction
- 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
Step 3.1 The dry mixPour 4½ buckets of aggregate into the wheelbarrow and also 1 bucket of cementA powdery type substance made from a mixture of earths materials such as limestone and shale, which is sintered (cause to become solid mass by heating without melting), ground, and mixed with small amounts of calcium sulphate and calcium carbonate. Cement is activated by water and when mixed with gravel and sand, forms concrete..
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 concreteA mixture of sand, gravel, water and cement which hardens to a stone like condition when dry. will burn your skin.
One mix will make one concrete seat.
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