Write four requirements of good formwork and draw a sketch showing cross section of formwork for a L-shaped column.

Write four requirements of good formwork and draw a sketch showing cross section of formwork for a L-shaped column.
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i. It should be strong enough to resist the weight of concrete, workers and machinery. ii. It should be economical compared to total cost of construction. iii. It should be possible to use the formwork for more number of times. iv. It should give smooth finish and shape to concrete faces. v. It should be possible to erect and dismantle the formwork very easily. vi. It should be easily and locally available. vii. It should be rigid enough to retain its shape without deflection or bulging.

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