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Dubai Engineering Stander

Sep 14, 2014

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SPECIFICATION TABLE OF CONTENTS 1.0 1.1 GENERAL GENERAL INFORMATION 1.1.1 Preamble 1.1.2 Abbreviations 1.1.3 Datum 1.1.4 Right of Way 1.1.5 Geotechnical Information 1.1.6 Interpretation of Drawings 1.1.7 Responsibility of Contractor 1.1.8 Governing Standards 1.1.9 Groundwater levels in Dubai SITE OFFICE FOR ENGINEERS REPRESENTATIVE 1.2.1 General 1.2.2 Specific Requirements 1.2.3 Location of Contract Offices sand Other Contract Facilities 1.2.4 Service Authorities GENERAL REQUIREMENTS 1.3.1 Materials 1.3.2 Setting-Out the Work 1.3.3 Notice of Operation 1.3.4 Traffic Safety and Control 1.3.5 Access to Private Land 1.3.6 Roads and Site to be Kept Clean 1.3.7 Compensation for Damage to Property 1.3.8 Existing Services 1.3.9 Continuous Working 1.3.10 Temporary Staging for Structures 1.3.11 Water Supply 1.3.12 Filling in Holes and Trenches 1.3.13 Protection of Works from Weather 1.3.14 Keeping the Works Free from Water 1.3.15 Sign Boards 1.3.16 Templates 1.3.17 Assistance to the Engineer 1.3.18 Surveying Equipment 1.3.18.1 Expendable Materials 1.3.19 Laboratory (See Appendix , Part 3 of 3) 1.3.19.1 General 1.3.20 Minimum Test Requirements 1.3.21 Sources of Materials 1.3.22 Programming the Progress of the Works 1.3.23 Progress Reports 1.3.24 Progress Photographs 1.3.25 Flows in Pipelines and at Pumping Stations

1.2

1.3

1.3.26 1.3.27 1.3.28 2.0 2.1 2.2

Suppression of Noise Closing of Roads NOC from Relevant Authorities

EARTHWORKS CLEARING AND GRUBBING REMOVAL OF STRUCTURES AND OBSTRUCTIONS 2.2.1 General 2.2.2 Removal of Pipes STRUCTURAL EXCAVATION 2.3.1 General 2.3.2 Pre-Construction and Land Drainage Records 2.3.3 Setting Out 2.3.4 Topsoil and Surfacing Materials 2.3.5 Land Drains 2.3.6 Hand Excavation 2.3.7 Support to Excavations 2.3.8 Dewatering 2.3.9 Formation 2.3.10 Excavation at or Near Roads 2.3.11 Excavation for Structures 2.3.12 Excavation for Pipelines 2.3.13 Excavation for Cable/Ducts 2.3.14 Excavated Material 2.3.15 Replacement of Unsuitable Material 2.3.16 Disposal of Material 2.3.17 Cofferdams BACKFILLING EXCAVATIONS 2.4.1 General 2.4.2 Selected Backfill 2.4.3 Special Backfill 2.4.4 Filter Material 2.4.5 Structural and Non-Structural Filling 2.4.6 Backfilling of Trenches for Cables/Ducts PROTECTION OF EXISTING SERVICES AND REINSTSATEMENT 2.5.1 General 2.5.2 Reinstatement of Unpaved Land 2.5.3 Reinstatement within Road Corridors 2.5.4 Reinstatement of Other Surfaced Areas 2.5.5 Excavation and Reinstatement in Developed Reservations

2.3

2.4

2.5

3.0 3.1 3.2

CONCRETE WORKS GENERAL MATERIALS 3.2.1 Cement 3.2.1.1 General 3.2.1.2 Ordinary Portland Cement 3.2.1.3 Sulphate Resisting Cement 3.2.1.4 Moderate Sulphate Resisting Cement 3.2.2 Fine Aggregate for Concrete and Mortar 3.2.3 Coarse Aggregate for Concrete 3.2.4 Combined Aggregate 3.2.5 Water 3.2.5.1 General 3.2.5.2 Specific Requirements 3.2.6 Admixtures 3.2.7 Concrete Mix Specification 3.2.8 Cement Mortar and Grout MIXING AND TESTING 3.3.1 Samples of Aggregates 3.3.2 Trial Mixes for Concrete 3.3.3 Water/Cement Ratio 3.3.4 Measurement of Ingredients 3.3.5 Mixing Concrete 3.3.6 Re-Mixing Concrete 3.3.7 Concrete Testing 3.3.7.1 General 3.3.7.2 Preliminary Testing 3.3.7.3 Works Testing 3.3.7.4 Workability Testing 3.3.8 Frequency of Testing Aggregate and Concrete TRANSPORTING AND PLACING CONCRETE 3.4.1 General Requirements 3.4.2 Placing Concrete in Hot Weather 3.4.3 Placing Concrete in Water (Tremie Concrete) 3.4.4 Blinding Concrete COMPACTING CONCRETE 3.4.1 Tamping 3.4.2 Vibrating CURING OF CONCRETE JOINTS IN CONCRETE 3.7.1 Intervals During Concrete 3.7.2 Construction Joints 3.7.3 Jointing Fresh to Set Concrete

3.3

3.4

3.5

3.6 3.7

3.7.4 3.7.5 3.7.6 3.7.7 3.8 3.9 3.10 3.11 3.12 3.13

Expansion Joints Expansion Joint Filler Expansion Joint Sealing Compound Waterstop Across Joints in Concrete Structures

INSPECTION OF CONCRETE FAULTY CONCRETE WORK REPAIRS TO CONCRETE SUPERVISION OF CONCRETE WORK FINISHING OF CONCRETE DESIGN AND CONSTRUCTION OF FORMWORK 3.13.1 General 3.13.2 Spacing Blocks and Temporary Construction Ties 3.13.3 Slab Forms 3.13.4 Type of Formwork 3.13.4.1 Exposed Concrete Faces for Bridges 3.13.4.2 Sawn Formwork 3.13.5 Preparation of Formwork for Concreting 3.13.6 Approval of Formwork for Concreting 3.13.7 Removal of Formwork 3.13.8 Concrete Below Ground READY MIXED CONCRETE 3.14.1 Compliance with Specification 3.14.2 Pumping Concrete 3.14.3 Field Control 3.14.4 Remixing 3.14.5 Documentation REINFORCEMENT STEEL 3.15.1 General 3.15.2 Materials Specifications 3.15.3 Construction of Reinforcement 3.15.3.1 Placing Reinforcement 3.15.3.2 Maintaining Reinforcement in Position 3.15.3.3 Approval of Reinforcement Before Concreting PRECAST CONCRETE KERBS, EDGINGS & QUADRANTS IN-SITU CONCRTE EDGING

3.14

3.15

3.16 3.17

4.0 4.1

PIPES, PIPEWORK, MANHOLES AND CHAMBERS PIPE MATERIALS 4.1.1 Pipe Classification and Pressure Ratings 4.1.2 Joint Requirements and Limitations 4.1.2.1 Flexible Joints 4.1.2.2 Flanged Joints 4.1.2.3 Flange Adaptors 4.1.2.4 Bolted Couplings 4.1.2.5 Nuts and Bolts 4.1.2.6 Shipping and Handling 4.1.3 Asbestos Cement Pipes and Fittings 4.1.4 Unplasticised Polyvinyl Chloride Pipes and Fittings (uPVC) 4.1.5 uPVC Pipes for land Drains 4.1.6 Glass Reinforced Pipes and Fittings GRP) 4.1.6.1 General 4.1.6.2 GRP Pipes and fittings for Pumping Stations and Valve Chambers 4.1.6.3 Factory Testing 4.1.6.4 Installation 4.1.7 Polyethylene Pipes (HDPE or HPPE) 4.1.7.1 General 4.1.7.2 Wall thickness STORAGE AND HANDLING OF PIPES 4.2.1 General 4.2.2 Glass Reinforced Plastic Pipes (GRP) 4.2.3 Thermoplastic Pipes GRANULAR MATERIAL FOR PIPE BEDDING 4.3.1 Stone for land Drains 4.3.2 Compaction Fraction Test CONVENTIONAL (OPEN TRENCH) PIPELINE CONSTRUCTION 4.4.1 General 4.4.2 Nominal Trench Widths 4.4.2.1Pipeline in Wide Trenches 4.4.3 Pipe laying and Jointing 4.4.4 Pipelines in Concrete Cradles and Surrounds 4.4.5 Pipelines on Granular Beds 4.4.6 Placing Surrounds to Pipelines 4.4.6.1 Group A Pipe Materials 4.4.6.2 Group B Pipe Materials 4.4.6.3 Compaction of Pipe Surrounds 4.4.6.4 Pipelines Below Permanent Groundwater Level 4.4.7 Backfilling of Trenches Pipelines/Structures 4.4.8 Deflection Measurements on Group B Pipelines 4.4.8.1 General 4.4.8.2 Deflection Measurements GRP Pipes 4.4.8.3 Deflection Measurements uPVC and other Plastic Pipes

4.2

4.3

4.4

4.4.9 4.4.10 4.4.11

4.4.12 4.4.13 4.4.14 4.4.15 4.5 4.6

Stanks to Pipelines in Granular Bedding Thrust and Anchor Blocks to Pressure Pipelines Pipes Protruding from Structures, Concrete Surrounds and Anchor Blocks 4.4.11.1 Group A Pipe Materials 4.4.11.2 Group B Pipe Materials Protection of Pipelines and Pipeline Component Indicator Posts to Pressure Mains Enclosing Granular or Stone Surround with Geotextile Filter Fabric Underground Services Warning Tapes

PIPEWORK WITHIN STRUCTURES MANHOLES, CHAMBERS, AND SPECIAL STRUCTURES 4.6.1 General 4.6.2 Construction of Manholes, Chambers and Special Structures 4.6.2.1 Road Gullies 4.6.3 Access Covers, Frames, and Grates 4.6.3.1 General 4.6.3.2 Access Covers and Frames 4.6.3.3 Reinforced Plastic Sealing Plates to Access Covers 4.6.3.4 Road Gully Gratings and Frames DUBAI MUNICIPALITY STANDARDS FOR COVERS AND GRATINGS 4.7.1 Approved List of Suppliers

4.7

5.0 5.1

BRICKWORK AND BLOCKWORK MATERIALS 5.1.1 Concrete Bricks and Blocks 5.1.2 Bricks 5.1.3 Sand for Mortar 5.1.4 Lime for Mortar CONSTRUCTION 5.2.1 General 5.2.2 Engineering Brickwork 5.2.3 Blockwork 5.2.4 Cement Mortar 5.2.5 Cement Lime Mortar 5.2.6 Cement Mortar Rendering

5.2

6.0 6.1 6.2

INSPECTION AND TESTING OF PIPELINES AND STRUCTURES CLEANING AND INSPECTION OF PIPELINES TESTING OF PIPELINES 6.2.1 General 6.2.2 Testing of Non-Pressure Pipelines 6.2.3 Testing of Pressure Pipelines TESTING OF VALVES TESTING OF WATER RETAINING STRUCTURES

6.3 6.4

7.0

NOT USED

8.0

NOT USED

9.0 9.1

CORROSION PROTECTION AND ODOUR CONTROL MATERIALS 9.1.1 Corrosive Environments 9.1.2 Paint 9.1.3 Impervious Tanking Membrane 9.1.4 PVC Sheet Lining Material 9.1.5 Reinforced Plastic Liners 9.1.6 In-Situ Laminations 9.1.7 Epoxy Mortar 9.1.8 Bituminous Emulsions 9.1.9 Water Proof Paper 9.1.10 Protective Materials for Wrapping Pipeline Components Suppliers 9.1.11 Approved Paint Suppliers INSTALLATION - PROTECTIVE COATINGS AND LINERS TO CONCRETE 9.2.1 General 9.2.2 Protective Coatings/PVC Liners 9.2.3 Reinforced Plastic Liners 9.2.4 Cutting and Sealing of Reinforced Liners ODOUR CONTROL FACILITIES 9.3.1 General 9.3.2 Soil Moisture and pH probes 9.3.3 Activated Carbon Odour Control Filter 9.3.4 Natural Soil Odour Control Filter 9.3.4.1 Materials 9.3.4.2 Installation 9.3.4.3 Monitoring 9.3.4.4 Maintenance 9.3.4.5 Acceptance Test

9.2

9.3

10. 10.1

BULIDING SPECIFICATIONS CONCRETE 10.1.1 Tolerance 10.1.2 Concrete Finish 10.1.3 Construction Bays 10.1.4 Small Precast Items 10.1.5 Cast-in Fixings 10.1.6 Timber Cast-in Fixings BRICKWORK AND BLOCKWORK 10.2.1 Damp-Proof Course 10.2.2 Wall Ties 10.2.3 Door and Window Frame Ties 10.2.4 Mastic 10.2.5 Brickwork and Mortar 10.2.6 Cement Mortar 10.2.7 Pointing 10.2.8 Hollow Walls ROOFING 10.3.1 Roof Screed 10.3.2 Roof Primer 10.3.3 Waterproofing Membrane 10.3.4 Roof Insulation 10.3.5 Roof Surface 10.3.6 Roof Decking 10.3.7 Fascia Cladding JOINERY 10.4.1 Timber-General 10.4.2 Timber-Sizes 10.4.3 Hardwood 10.4.4 Timber Fixing Accessories 10.4.5 Timber Preservative 10.4.6 Ironmongery 10.4.7 Workmanship 10.4.8 Storage 10.4.9 Door Frames 10.4.10 Doors METALWORK 10.5.1 Aluminium 10.5.2 Aluminium Louvres 10.5.3 Aluminium Windows 10.5.4 Ironmongery PLUMBING 10.6.1 Copper Tubes 10.6.2 Copper Fittings, Waste Pipes, Ball Valves, etc

10.2

10.3