How can I be sure of the quantity of ready mixed concrete supplied ?
Apparent ready mixed concrete shortages are caused by: • Miscalculation of form volume or slab thickness when actual dimensions exceed the assumed dimensions by even a fraction. • Deflection or distortion of the formwork. • Irregular subgrade and its settlement. • Smaller quantities wasted or used in incidental works for large pours. To ensure sufficient supply of ready mixed concrete: • Measure formwork accurately and order sufficient quantity to finish the job. • For large pours, include an allowance of about 2% over planned dimensions to account for wastage, potential increased thickness, etc. • Towards the end of large pours, carefully measure the remaining volume and confirm the closing quantity to the ready mixed concrete supplier.
