ASHGHAL Interim Advice Note No. 013/14 Amendments / Additions to QCS 2014 Revision No. A1

143 Pages·2016·2.98 MB·English

Ashghal – Amendments / Additions to QCS 2014

ASHGHAL
Interim Advice Note No. 013/14

Amendments / Additions to QCS 2014
Revision No. A1

Summary
This Interim Advice Note (IAN) provides information and guidance on amendments and additions to
QCS (Qatar Construction Specifications) 2014. This IAN takes immediate effect.

Third parties not working on Ashghal projects make use of this document at their own risk. Paper
copies of this document are uncontrolled. Refer to Ashghal’s website for the most recent version.

A1 April 2016 Issued for All Relevant Infrastructure Projects IF MG DOR
Rev Date Reason For Issue Auth Chk App
PWA IAN 013/14 Rev A1 Page 1 April 2016
Ashghal – Amendments / Additions to QCS 2014

Contents

1. Foreword ...................................................................................................................... 3
2. Ashghal Interim Advice Note (IAN) – Feedback Form .............................................. 4
3. Introduction ................................................................................................................. 5
4. Amended Standard ...................................................................................................... 5
5. Implementation ............................................................................................................ 5

Appendix A
Amendments / Additions to Qatar Construction Specifications (QCS) 2014

PWA IAN 013 /14 Rev A1 Page 2 April 2016
Ashghal – Amendments / Additions to QCS 2014

1. Foreword

1.1 Interim Advice Notes (IANs) may be issued by Ashghal from time to time. They define
specific requirements for works on Ashghal projects only, subject to any specific
implementation instructions contained within each IAN.
1.2 Whilst IANs shall be read in conjunction with the Qatar Highway Design Manual (QHDM),
the Qatar Traffic Manual (QTM) and the Qatar Construction Specifications (QCS), and may
incorporate amendments or additions to these documents, they are not official updates to
the QHDM, QTM, QCS or any other standards.
1.3 Ashghal directs which IANs shall be applied to its projects on a case by case basis. Where it
is agreed that the guidance contained within a particular IAN is not to be incorporated on a
particular project (e.g. physical constraints make implementation prohibitive in terms of land
use, cost impact or time delay), a departure from standard shall be applied for by the
relevant Consultant / Contractor.
1.4 IANs are generally based on international standards and industry best practice and may
include modifications to such standards in order to suit Qatar conditions. Their purpose is to
fill gaps in existing Qatar standards where relevant guidance is missing and/or provide
higher standards in line with current, international best practice.
1.5 The IANs specify Ashghal’s requirements in the interim until such time as the current Qatar
standards (such as QHDM, QTM, etc.) are updated. These requirements may be
incorporated into future updates of the QHDM, QTM or QCS, however this cannot be
guaranteed. Therefore, third parties who are not engaged on Ashghal projects make use of
Ashghal IANs at their own risk.
1.6 All IANs are owned, controlled and updated as necessary by Ashghal. All technical queries
relating to IANs should be directed to Ashghal’s Manager of the Design Department,
Infrastructure Affairs.

Signed on behalf of Design Department:

____________________________________________________
Abdulla Ahin A A Mohd
Manager of Roads Design Department
Design Management (Roads Section)
Public Works Authority
Tel: [phone]
Fax: [phone]
P.O.Box 22188 Doha - Qatar
Email:[email protected]
http://www.ashghal.gov.qa

PWA IAN 013 /14 Rev A1 Page 3 April 2016
Ashghal – Amendments / Additions to QCS 2014

2. Ashghal Interim Advice Note (IAN) – Feedback Form

Ashghal IANs represent the product of consideration of international standards and best practice
against what would work most appropriately for Qatar. However, it is possible that not all issues
have been considered, or that there are errors or inconsistencies in an IAN.

If you identify any such issues, it would be appreciated if you could let us know so that amendments
can be incorporated into the next revision. Similarly, we would be pleased to receive any general
comments you may wish to make. Please use the form below for noting any items that you wish to
raise.

Please complete all fields necessary to identify the relevant item
IAN title:
IAN number: Appendix letter:
Page number: Table number:
Paragraph number: Figure number:
Description comment:

Please continue on a separate sheet if required:
Your name and contact details (optional):
Name: Telephone:
Organisation: Email:
Position: Address:

Please email the completed form to:

Abdulla Ahin AA Mohd

Manager of Roads Design Department
Design Management
(Roads Section)
Public Works Authority

[email protected]

We cannot acknowledge every response, but we thank you for contributions. Those contributions
which bring new issues to our attention will ensure that the IANs will continue to assist in improving
quality on Ashghal’s infrastructure projects.
PWA IAN 013 /14 Rev A1 Page 4 April 2016
Ashghal – Amendments / Additions to QCS 2014

3. Introduction
3.1 This Interim Advice Note (IAN), which takes immediate effect, provides information and
guidance on amendments and additions to Qatar Construction Specifications (QCS) 2014.
This IAN will provide interim guidance prior to issue of a revision to QCS 2014.
4. Amended Standard
4.1 For application to projects which incorporate QCS 2014 which shall be amended by this IAN.
5. Implementation
5.1 This IAN is to be used with immediate effect on projects as follows:
 All Ashghal projects in Design Stage
 All Ashghal projects in Tender Stage

5.2 Ashghal projects in Construction Stage shall be reviewed by the Project Consultant /
Contractor and the implications of adoption of this Interim Advice Note discussed with the
respective Ashghal Project Manager.

5.3 If in doubt, Consultants / Contractors should seek guidance from the respective Ashghal
Project Manager or designated Programme Management Consultant (PMC) on a scheme
specific basis.

PWA IAN 013 /14 Rev A1 Page 5 April 2016
Ashghal – Amendments / Additions to QCS 2014

Appendix A – Amendments / Additions to Qatar Construction
Specifications (QCS) 2014
PWA IAN 013 /14 Rev A1 Page 6 April 2016
Ashghal – Amendments / Additions to QCS 2014

CONTENTS

SECTION 1 GENERAL
Part 1 Introduction
Part 3 Site Access and Entry onto the Site
Part 8 Building Demolition
Part 10 Health and Safety
Part 11 Engineer’s Site Facilities
Part 13 Setting out of the Works
Part 15 Temporary Controls
Part 16 Traffic Diversions
Part 20 Clearance of Site

SECTION 3 GROUND INVESTIGATION
Part 3 Pits and Trenches
Part 4 Soil Sampling
Part 5 In-situ Testing, Instrumentation and Monitoring

SECTION 4 FOUNDATIONS AND RETAINING STRUCTURES
Part 2 Concrete Works for Piling
Part 4 Deep Foundations

SECTION 5 CONCRETE
Part 2 Aggregates
Part 3 Cement
Part 4 Water
Part 6 Property Requirements
Part 7 Concrete Plants
Part 8 Transportation and Placing of Concrete
Part 9 Formwork
Part 10 Curing
Part 11 Reinforcement
Part 12 Joints
Part 14 Protective Treatments for Concrete
Part 15 Hot Weather Concreting
Part 16 Miscellaneous
Part 17 Structural Precast Concrete
Part 18 Prestressed Concrete

SECTION 6 ROADWORKS
Part 1 General
Part 10 Vehicle Crash Barriers
Part 11 Kerbs, Footways and Paved Areas
Part 12 Fencing
Part 13 Traffic Signs, Markings and Studs
Part 14 Works in Relation to Services
Part 15 Road Lighting
Part 16 Road Drainage
PWA IAN 013/14 Rev A1 Page A1 April 2016
Ashghal – Amendments / Additions to QCS 2014

SECTION 8 SEWERAGE
Part 1 General
Part 3 Pipes and fittings material
Part 4 Pipeline Installation
Part 5 Valves, penstocks and appurtenances
Part 6 Metalworks
Part 7 Glass reinforced plastics
Part 9 Trenchless pipeline construction

SECTION 19 PLUMBING WORK
Part 1 General
SECTION 21 ELECTRICAL WORKS
Part 1 General Provision for Electrical Installation
Part 2 MV Factory Built Assemblies (FBA’s)
Part 3 Protective Devices
Part 6 Cables and Small Wiring
Part 7 Conduits and Conduit Boxes
Part 10 Wiring Accessories and General Power
Part 13 Telephone Installation
Part 22 Earthing and Bonding
Part 23 Inspection and Testing
Part 31 Power Transformers
Part 34 High Voltage Switchgear
Part 35 Extra High Voltage Cables

PWA IAN 013/14 Rev A1 Page A2 April 2016
Ashghal – Amendments / Additions to QCS 2014

Section 1: General

SECTION 1 GENERAL

PART 1 INTRODUCTION

Add new Clause 1.7 as follows:

1.7 OTHER REQUIREMENTS
1.7.1 Site Specific Geotechnical Requirements

1 The Contractor’s attention is drawn to the ground conditions likely to be encountered in
the area as provided for information in Geotechnical Investigation Report in the
Specification. Construction works may involve excavation in very hard rock and in filled
and reclaimed land and excavations below the level of the ground water table. The
Contractor should assess and make allowance for working in such conditions.

1.7.2 Blasting Restrictions

1 The Contractor’s attention is drawn to the fact that the Works may be constructed in
developed areas where blasting may be restricted.
PWA IAN 013/14 Rev A1 Page A3 April 2016
Ashghal – Amendments / Additions to QCS 2014

Section 1: General

PART 3 SITE ACCESS AND ENTRY ONTO THE SITE

3.2 ACCESS ROADS

3.2.1 Temporary Access Roads

Delete paragraph 2 and substitute with the following:

2 Reinstatement shall include restoring the area of any route to at least the degree of
safety, stability, drainage, level, contour and landscaping that existed at the time the
Contractor is given Possession of Site.

3.3 SITE ENTRY

3.3.1 Entry onto the Site

Delete paragraph 3.

Add new paragraph 8 as follows:

8 The work permit for plants, which are under operation by PWA Operations and
Maintenance Department will be issued as per 'Operations and Maintenance Department
Permit Procedure' based on the Contractor’s application through the Engineer or his
designated representative.

PWA IAN 013/14 Rev A1 Page A4 April 2016