The structural integrity of the building is of paramount importance as the costs of failure and repairs are very significant.
(i) Site inspection of formwork, steel reinforcement and finished concrete during construction. The assessment shall include structural steel and pre-stressed concrete if each constitutes more than 20% of the total structural cost.

(ii) Laboratory testing of compressive strength of concrete and tensile strength of steel reinforcement.

(iii) Non-destructive testing of the uniformity and the cover of hardened concrete.