The Director has also informed me that a revised contract specification for piling works has been put in force allowing the project structural engineer to order three additional loading tests without incurring additional payment if one loading test fails to comply with the acceptance requirements, and that consideration is being given to the use of sonic and vibration tests in future piling contracts using in situ concrete piles as a supplementary means to expand the scope of testing for defective piling work.
Audit Department, Hong Kong,
16 October 1985.
(N.B. STALKER) Director of Audit