Card number 4
Paths and terraces should be laid on a firm, well-connected base. Use plenty of rubble in the foundations of the path, to avoid drainage problems occurring at a later date. If the surface is to be of paving slabs or bricks, spread on top of the rubble base either a layer of sand or mortar, on which the paving can be laid to an even grade. Allow for surface drainage. If mortar is used do not spread too much at a time, as it soon starts to set. Use a square-edged plank to check the levels and ensure that each slab or brick is firmly bedded (see also Card 33). Paving slabs and bricks can be laid in patterns of many different kinds and some manufacturers supply slabs of different sizes or colours to aid pattern making.
Effective designs can be achieved by using these materials in various combinations.
Concrete paths should be ar least 3 in.thick and individual sections should not be more than 6 ft. long, to allow for expansion and contraction. Sides should be formed by setting timber on edge between which the concrete is laid.Rough Oregon, 3 in. by 1 in., is useful for this purpose, held in place by short pieces of the same material, pointed on one end, driven into the ground on the outside face of the forming and nailed it.