Notes for the Users of the General Specification for Civil Engineering Works:

1.The continuously updated version (No. 4 to No. 6) posted on the CEDD Homepage is only an electronic version and has not yet been printed for sale.

2.This electronic version incorporates amendments from Corrigendum No. 1/2003 onwards.

2

The Government of the Hong Kong Special Admin

istrative Region

First published, March 1992

Reprinted, April 1993 Second reprint, March 1994

Third reprint, July 1995 Fourth reprint, August 1996 Fifth reprint, December 1997 Sixth reprint, November 1998

Seventh reprint with amendments promulgated under Corrigendum Nos. 1/93, 1/94, 2/94, 1/95, 1/96, 2/96, 1/97, 2/97, 1/98, 2/98, 1/99, 2/99 and 1/2000 incorporated, March 2001

Eighth reprint with all amendments incorporated in the seventh reprint and with amendments promulgated under Corrigendum Nos. 1/2001, 2/2001, 3/2001, 1/2002 and 2/2002 incorporated, October 2002

Prepared by:

Standards Unit,

Civil Engineering Department,

Civil Engineering Building, 101 Princess Margaret Road,

Homantin, Kowloon,

Hong Kong.

Steering Committee members:

R.H. Pilling (Chairman) C.L. Au C.K. Au Yong W.S. Chan T.K. Cheung D.J. Howells T.L. Hsu H.S. Kwong I.M. Miller K.P. Mok H. Sanders K.Y. Tang H.S. Tse

This publication is available from:

Government Publications Centre, Ground Floor, Low Block, Queensway Government Office, 66 Queensway,

Hong Kong.

Future amendments of this publication will be published on the website of the Civil Engineering Department at http://www. info.gov.hk/ced/.

Overseas orders should be placed with:

Publications Sales Section, Information Services Department, Room 402, 4th Floor, Murray Building, Garden Road, Central,

Hong Kong.

Price in Hong Kong: HK$173.00 (in set of 3 volumes)

Price overseas: US$33.00 (including surface postage)

An additional bank charge of HK$50 or US$6.50 is required per cheque made in currencies other than

Hong Kong dollars.

Cheques, bank drafts or money orders must be made payable to The Government of the Hong Kong Special Administrative Region.

http:US$33.00http:HK$173.00http://www

3

FOREWORD

This Specification lays down the quality of materials, the standards of workmanship, the testing methods and the acceptance criteria for civil engineering works undertaken for the Hong Kong Government. It supersedes "Public Works Department, Civil Engineering Office and Highways Office General Specification for Civil Engineering Works, 1977 Edition" and "Water Supplies Department, General Specification for Civil Engineering Works, 1987 Edition".

The Specification is to be cited as "General Specification for Civil Engineering Works, 1992 Edition (Hong Kong Government)". It is compatible with "General Conditions of Contract for Civil Engineering Works, 1990 Edition (Hong Kong Government)" and "Standard Method of Measurement for Civil Engineering Works, 1992 Edition (Hong Kong Government)". Where necessary, it should be supplemented by a Particular Specification.

This new Specification was produced over a six-year period under the guidance of a Steering Committee which comprised members from all the main Government departments concerned with the execution of civil engineering works. The drafting of each Section was carried out by a Working Party consisting of individuals who possessed the appropriate knowledge and expertise. Drafts of the Sections were circulated for comment inside and outside the Government before finalization. The published document therefore takes account of recent technological advances and their application to civil engineering works in Hong Kong. The overall co-ordination for the document, and its final editing and production, were the responsibility of the Standards Unit of the Civil Engineering Department.

March 1992

4

GENERAL SPECIFICATION FOR CIVIL ENGINEERING WORKS

CONTENTS

VOLUME 1

SECTION 1 GENERAL 2 SITE CLEARANCE 3 LANDSCAPE SOFTWORKS AND ESTABLISHMENT WORKS 4 FENCING

5 DRAINAGE WORKS 6 EARTHWORKS 7 GEOTECHNICAL WORKS 8 PILING WORKS

VOLUME 2

SECTION 9 CARRIAGEWAYS: SUB-BASE MATERIAL AND BITUMINOUS MATERIALS

10 CONCRETE CARRIAGEWAYS 11 MISCELLANEOUS ROADWORKS 12 TRAFFIC SIGNS, ROAD MARKINGS AND ROAD STUDS 13 WORK FOR ELECTRICAL AND MECHANICAL INSTALLATIONS 14 FORMWORK AND FINISHES TO CONCRETE 15 STEEL REINFORCEMENT 16 CONCRETE AND JOINTS IN CONCRETE 17 PRESTRESSING

VOLUME 3

SECTION 18 STEELWORK 19 HANDRAILING, LADDERS, STAIRS AND FLOORING 20 BRIDGEWORKS 21 MARINE WORKS 22 RAILWAY WORKS 23 WATER SUPPLY PIPEWORKS 24 WATER RETAINING STRUCTURES 25 BUILDING WORKS

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CONTENTS OF VOLUME 1

SECTION 1

GENERAL Page No.

INTERPRETATION OF DOCUMENTS

1.01 Application of the General Specification for Civil Engineering Works.................................... 37 1.02 Abbreviations................................................................................................................................ 38 1.03 Glossary of terms.......................................................................................................................... 39 1.04 Trials and approval ....................................................................................................................... 39 1.05 British Standards, Codes of Practice and other standards .......................................................... 39 1.06 Specifications in metric and imperial units ................................................................................. 40 1.07 Dimensions from Drawings ......................................................................................................... 40

PROGRAMME

1.08 Programme.................................................................................................................................... 40

CONTRACTOR'S SUPERINTENDENCE

1.09 Surveyor........................................................................................................................................ 41 1.10 Foreman for concrete work.......................................................................................................... 41 1.11 Particulars of agent and employees ............................................................................................. 41

SAFETY

1.12 Safety ............................................................................................................................................ 41

WORK IN ROADS

1.13 Approval for temporary traffic arrangements and control.......................................................... 42 1.14 Temporary traffic arrangements and control............................................................................... 42 1.15 Particulars of temporary traffic arrangements and control ......................................................... 43 1.16 Use of roads and footways........................................................................................................... 43 1.17 Work in roads and footways ........................................................................................................ 44 1.18 Reinstatement of roads and footways.......................................................................................... 44

CARE OF THE WORKS

1.19 Protection from water................................................................................................................... 44 1.20 Protection from weather............................................................................................................... 45 1.21 Protection of work ........................................................................................................................ 45

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Page No.

DAMAGE AND INTERFERENCE

1.22 Damage and interference ............................................................................................................. 45 1.23 Watercourses and drainage systems ............................................................................................ 46 1.24 Utilities.......................................................................................................................................... 46 1.25 Structures, roads and other property............................................................................................ 47 1.26 Access ........................................................................................................................................... 48 1.27 Trees.............................................................................................................................................. 48

RECORDS

1.28 Records of wage rates .................................................................................................................. 48 1.29 Records of correspondence .......................................................................................................... 48 1.30 Records and reports ...................................................................................................................... 48

LIAISON WITH OTHERS

1.31 Liaison with others ....................................................................................................................... 49

SITE CLEANLINESS

1.32 Site cleanliness.............................................................................................................................. 49 1.33 Prevention of mosquito breeding................