Concrete formwork. 1 : General 1.1
Concrete formwork. AND REINFORCEMENT For preambles see "Model Preambles for Trades" SUPPLEMENTARY PREAMBLES Cost of tests The costs of making, storing and testing of concrete test cubes as required under clause 7 "Tests" of SABS 1200 G shall include the cost of providing cube moulds necessary for the purpose, for testing costs and for submitting reports on the tests to the architect. The testing shall be undertaken by an independent firm or institution nominated by the contractor and to the approval of the architect. (Test cubes are measured separately) Formwork Descriptions of formwork shall be deemed to include use and waste only (except where described as "left in" or "permanent"), for fitting together in the required forms, wedging, plumbing and fixing to true angles and surfaces as necessary to ensure easy release during stripping and for reconditioning as necessary before re-use. The vertical strutting shall be carried down to such construction as is sufficiently strong to afford the required support without damage and shall remain in position until the newly constructed work is able to support itself. Formwork to soffits of (solid) slabs etc shall be deemed to be to slabs not exceeding 250mm thick unless otherwise described Formwork to sides of bases, pile caps, ground beams, etc will only be measured where it is prescribed by the engineer fordesign reasons. Formwork necessitated by irregularity or collapse of excavated faces will not be measured and the cost thereof shall be deemed to be included in the allowance for taking the risk of collapse of the sides of the excavations, provision for which is made in "Earthworks" Carried to Collection R Section No. 2 BUILDINGS Bill No. 2 CONCRETE, FORMWORK AND REINFORCEMENT UNREINFORCED CONCRETE 15Mpa/19mm concrete 1 Blinding under footings and bases m3 12 10Mpa/19mm concrete 2 Aprons m3 3 REINFORCED CONCRETE 30MPa/19mm concrete 3 Stub columns m3 1 4 Columns m3 4 5 Surface beds cast in panels on water proofing m3 74 6 Thickening under surface beds m3 4 25MPa/19mm concrete 7 Strip footings m3 58 8 Bases m3 17 9 Stub columns m3 1 10 Columns m3 3 11 Beams m3 22 12 Slabs m3 21 Carried to Collection R Page 50 Section No. 2 BUILDINGS Bill No. 2 CONCRETE, FORMWORK AND REINFORCEMENT TEST CUBES 13 Making and testing 150 x 150 x 150mm concrete strength test cubes (Provisional) No 31 CONCRETE SUNDRIES Finishing top surfaces of concrete smooth with a power float to a smooth surface 14 Surface beds, slabs, etc m2 730 15 Ramps to falls to a...
