The central shaft of the auger represents a full length tremie pipe assembled together down to the bottom of the pile. Ready-mix concrete of slump 175 to 200 mm.for tremie condition shall be used to ensure a smooth flow down the tremie pipes. The top of the tremie pipe is connected to a concrete pump that receives delivered ready mixed concrete. The toe of the tremie pipes should be immersed in theconcrete during casting, to prevent pile necking. Concrete placing shall proceed continuously until the designed head of pile level is achieved and sufficiently above thereafter to allow for subsequent cutting back to sound concrete cut off level. Concrete cubes must be taken daily and that is by the rate of 6 cubes per 50 cubic meter to determine the strength of the pile concrete after 7 and 28 days to make sure that the pile reached its required strength, and a record for each pile is presented having all pile information (dates and times – weather conditions – soil conditions –concrete conditions- etc.). A piling daily record form is attached.