Question No. 4
Speech by Hon. CHAN Nai-keong, CBE, JP, Secretary for Lands and Works, in answer to question by Hon. Lydia DUNN, CBE, LLD, JP, at Legislative Council on 6 November 1985
Question: In the light of a recent report that there is
concrete deterioration in Hong Kong's buildings, would the Government inform this Council:
(a)
whether such a problem exists and if so; (b) what is the scale of the problem in the
public and private sectors; and
(c)
what actions are being taken to remedy it?
Sir,
Yes, a problem exists with regard to concrete deterioration in Hong Kong's buildings.
However, this problem is not a serious one at present but it is growing. Given good workmanship and proper material, concrete buildings can have an extremely long life. In the
private sector, over the last two decades, 31 buildings have
been demolished because of serious defective concrete,
representing about 0.12% of all concrete framed buildings in the territory. In the public sector, in view of the regular maintenance programme, the situation is significantly better
and there are no cases of defective concrete which cause the building to be in a state of imminent failure.
Both preventive and remedial measures are taken to
overcome the problem of concrete deterioration of buildings.
Provisions under the Buildings Ordinance require all
construction materials to comply with standard specification
and the submission of certificates of origin, chemical
composition and strength tests results of steel reinforcement prior to construction. During construction, test reports on
concrete cubes are required and at various stages Buildings Ordinance Office staff carry out site inspections. After
construction, planned surveys are conducted by the Buildings Ordinance Office staff who also respond to reports from the general public. Where buildings require attention, repair
orders are served on owners. In default situations, direct
action is taken by Government.
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第四項問題
一九八五年十一月六日立法局會議席上
地政工務司陳乃強給鄧蓮如議員所提問題的答覆