Table of Contents
Making the form
Step 1. Cut the sides of the form
The form is the mold that holds the A mixture of sand, gravel, water and cement which hardens to a stone like condition when dry. and reinforcing steel in place until such time as the concrete hardens.
Cut all the side pieces for the form (mold) out of 1 1/2″ x 3 1/2″ Timber, lumber. The hard fibrous lignified substance under the bark of trees. (That is, 2″x4″ that has been Surfaced; planed; smooth; even surface; gauged. or planed).
Refer to the plans on page 2 for the lengths and angles.
Lay the pieces for each side in place on a flat surface. A short nail with a large flat head used for securing roofing felt, plasterboard, sheet metal to wood etc. the joins securely.
Step 2. To make rigid. the sides of the form
Lay the two sides on a flat surface in mirror fashion.
Nail a diagonal brace to each side as shown in the picture.
The braces can be made out of A piece of wood made of three or more layers of wood veneer laminated together with glue. or boards at least 6″ wide.
Step 3. Attach the front to the form
The front of the form consists of plastic Any broad, thin surface. under plywood.
The plastic sheet will give the concrete a smooth finish.
Cut both the plastic sheets and the front plywood pieces to the Any of the three linear measurements, length, breadth and depth. given in the materials requirement list on page 2.
Lay the plastic sheets and the plywood front pieces in place (the plastic sheets will be under the plywood front piece) and To secure with nails or screws. with screws, screwing through both the plywood and the plastic into the sides of the form.
Step 4. Plastic sheet in the form
Turn the form over.
The picture shows the plastic sheet in the front of the form.
The plastic sheet is to give the concrete a smooth finish and is optional if you don’t mind a rougher finish.
The concrete in the form will take on a finish the same as the inside of the form itself. For example, smooth plastic will give a smooth finish to the concrete, whereas wood will give the same finish as the wood used.