2011Residential slabs and footings as amended;

2011 Residential slabs and footings as amended; (b) the footing is to be designed in accordance with AS 2870-2011 Residential slabs and footings as amended; (c) footings of minimum 225mm x 150mm concrete 15MPa or 300mm x 175mm brick laid in cement mortar; (d) fences to be offset a minimum of 200mm at maximum 3 000mm centres or 225mm x 100mm engaged piers to be provided at maximum 3 000mm centres; (e) expansion joints in accordance with the manufacturer’s written instructions; and (f) the height of the fence to be 1 800mm except with respect to the front set back area for which there is no minimum height but which is subject to clause 2.2. Composite fence A composite fence which satisfies the following specifications for the brick construction— (1)(a) brick piers of minimum 345mm x 345mm at 1 800mm centres bonded to a minimum height base wall of 514mm; (b) each pier shall be reinforced with one R10 galvanised starting rod 1 500mm high with a 250mm horizontal leg bedded into a 500mm x 200mm concrete footing and set 65mm above the base of the footing. The top of the footing shall be 1 course (85mm) below ground level; (c) the minimum ultimate strength of brickwork shall by 20MPa. Mortar shall be a mix of 1 part cement, 1 part lime and 6 parts sand; (d) the ground under the footings is to be compacted to 6 blows per 300mm and checked with a standard falling weight penetrometer; and (e) control joints in brickwork shall be provided with double piers at a maximum of 6-metre centres; or (2)(a) brick piers of a minimum 345mm x 345mm x 2 700mm centres bonded to the base wall; and (b) each pier shall be reinforced with two R10 galvanised starting rods as previously specified.