Section 4.3.2
Reinforcement
Reinforcement for strip and trench foundations shall ensure the safe transfer of loads and be suitable for localised ground conditions.
Reinforcement must be provided to overcome localised conditions such as hard spots and soft spots.
The reinforcement must be appropriately sized, clean and free fromexcessive rust.
Supports provided no more than 1m centres and allowing for 75mm coverage from the bottom of the trench and from the trench wall.
The reinforcement must be lapped at 40 x the diameter of the bar and tied together unless stated otherwise by an engineer.