The tolerances, given below, should be maintained while placing reinforcement unless otherwise mentioned by the engineer:
(a) Tolerances for depth d, and minimum concrete cover in flexural members, walls and compression members should be as follow :-
Tolerances for Placing Reinforcement
Tolerance for d - Tolerance for Minimum Concrete Cover
d ≤ 200 mm ±10 mm –10 mm
d > 200 mm ±13 mm –13 mm
(b) Regardless the provision of (a) above, tolerance for the clear distance to formed soffits should be minus 6 mm and tolerance for cover should not be in excess of minus 1/3 the minimum concrete cover stated in the design drawings or specifications.
(c) Tolerance for longitudinal location of bends and ends of reinforcement should be ± 50 mm, excluding at discontinuous ends of brackets and corbels, where tolerance should be ± 13 mm and at discontinuous ends of other members, where tolerance should be ±25 mm. The tolerance for concrete cover should also be used in discontinuous ends of members.