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Abu Dhabi, United Arab Emirates. STANDARD CONSTRUCTION SPECIFICATIONS (PART 1 - ROADS, Second Edition 2020) - page 4

10.  AMCA: Air Moving & Conditioning Association
11.  AMRL: AASHTO Materials Reference Laboratory
12.  ANSI: American National Standards Institute
13.  ARI:  Air  Conditioning  &  Refrigeration  Institute  ASHRAE  American  Society  of  Heating,

Refrigerating and Air Conditioning Engineers

14.  ASBI: American Segmental Bridge Institute
15.  ASCE: American Society of Civil Engineers
16.  ASNT: American Society for Nondestructive Testing
17.  ASTM: American Society for Testing & Materials (ASTM International)
18.  AWS: American Welding Society
19.  AWWA: American Water Works Association
20.  BS: British Standard
21.  BSCP: British Standard Code of Practice
22.  BSI: British Standards Institution
23.  CEE: International Commission on Rules for Approval of Electrical Equipment (Europe)
24.  CEN: European Committee for Standardization (also EN)
25.  CENELEC: European Committee for Electrotechnical Standardization
26.  CIRIA: Construction Industry Research and Information Association
27.  CRSI: Concrete Reinforcing Steel Institute
28.  CSI: Construction Specifications Institute
29.  DIN: Deutsche Institute for Normung
30.  DMS: Departmental Material Specification
31.  EN: European Standard (see CEN)
32.  ETSI: European Telecommunications standards Institute
33.  FHWA: Federal Highway Administration
34.  FS: Federal Specification (US)
35.  ICR: International Concrete Repair Institute
36.  IEC: International. Electrotechnical Commission
37.  IEE: Institute of Electrical Engineers of London
38.  IEEE: Institute of Electrical & Electronics Engineering
39.  IES: Illuminating Engineering Society
40.  ISO: International Organization for Standardization
41.  ITE: Institute of Transportation Engineers
42.  IWRC: Independent Wire Rope Core
43.

MSS: Manufacturer’s Standardization Society of the Valves and Fittings Industries

44.  NACE: National Association of Corrosion Engineers
45.  NATM: New Austrian Tunnelling Method
46.  NBS: National Bureau of Standards
47.  NCMA: National Concrete Masonry Association
48.  NEC: National Electrical Code (NPFA No.70)
49.  NEMA: National Electrical Manufacturers Association
50.  NFC: National Fire Code
51.  NFPA: National Fire Protection Association
52.  NIST: National Institute of Standards and Technology
53.  NRMCA: National Ready Mixed Concrete Association
54.  NSBA: National Steel Bridge Alliance
55.  NWC: National Water Council (UK)

56.  OSHA: Occupational Safety & Health Administration (US)
57.  PCA: Portland Cement Association
58.  PCI: Precast/Prestressed Concrete Institute
59.  SMACNA: Sheet Metal & Air Conditioning Contractors National Association
60.  SSPC: The Society for Protective Coatings
61.  UL: Underwriters Laboratories
62.  UBC: Uniform Building Code
63.  UPC: Uniform Plumbing Code
64.  USACE: US Army Corps of Engineers
65.  USC: United States Code
66.  WRI: Wire Reinforcement Institute

Each of the above abbreviations, when followed by a number or letter designation, or combination
of numbers and letters, designates a specification, test method, or other code or recommendation of
the particular authority or organization shown.

1.3.2.2

Reference Standards and Codes Required in Chapter 1

AASHTO LRFD American Association of State Highway and Transportation Officials - Load and

Resistance Factor Design, Bridge Design Specifications;

AASHTO

Guide Design Specifications for Bridge Temporary Works;

ADQCC (TR-516) Road Structures Design Manual

ADQCC (TR-511) Manual on Uniform Traffic Control Devices;

ADQCC (WA-725) Irrigation Manual (Vol. 1, 2, 3, and 4)

ADQCC (WA-726) Stormwater and subsoil drainage system (Vol. 1, 2, 3 and 4);

ADQCC (TR-511) Manual on Uniform Traffic Control Devices

ADQCC (TR-531) Work Zone Traffic Management Manual

CGPM

General Conference on Weights and Measures;

DOT-C-04

Abu Dhabi DOT - Construction Contract Administration Procedures;

DOT-C-05

Abu Dhabi DOT - Construction Supervision Manual;

DOT-M-05

Abu Dhabi DOT - Quality Assurance and Quality Control - Requirements for
Road Projects;

DOT-M-07

Abu Dhabi DOT - Quality Assurance and Quality Control

– Main Roads Division

Quality Manual;

DOT-M-08

Abu Dhabi DOT - Environmental, Health and Safety Manual for Road Projects;

ITE

Equipment and Material Standards of the Institute of Transportation Engineers;

NFPA 241

Standard for Safeguarding Construction, Alteration, and Demolition Operations;

U.S. DOT FHWA Department of Transportation Federal Highway Administration - Manual on

Uniform Traffic Control Devices for Streets and Highways;

Table 1-1 and Table 1-2 presents American Society for Testing and Materials (ASTM), British (BS),
and European (BS EN) Standards that are related to materials of this chapter. It also includes
designations and titles.

Table 1-1: Designations and titles for ASTM standards that apply to this chapter

ASTM

Designation

Title

ASTM E380 -

2010

Standard Practice for Use of the International System of Units (SI) (the
Modernized Metric System).

ASTM D4950 -

Standard Classification and Specification of Automotive Service Greases.

ASTM E810 -

03(2008)

Standard Test Method for Coefficient of Retroreflective Sheeting Utilizing the
Coplanar Geometry.

ASTM D4956 -

11a

Standard Specification for Retroreflective Sheeting for Traffic Control.

ASTM D523 -

Standard Test Method for Specular Gloss.

ASTM G154 -

Standard Practice for Operating Fluorescent Light Apparatus for UV
Exposure of Nonmetallic Materials.

ASTM B209 -

Standard Specification for Aluminum and Aluminum Alloy Sheet and Plate.

Table 1-2: Designations and titles for BS, and BS EN standards that apply to this chapter

BS Designation

BS EN

Designation

Title

BS EN 933-
1:1997

Tests for geometrical properties of aggregates.
Determination of particle size distribution. sieving method.

BS 812-

105.2:1990

Testing aggregates. Method for determination of particle
shape. Elongation index of coarse aggregate.

1.3.3

Equivalent Standards Acceptable

References to standards are made throughout these specifications to establish a standard of quality
required and a procedure to be followed. Reference to one particular standard is not intended to
prohibit the use of any other internationally recognized standard, which achieves the same level of
quality, or requirement as those specifically mentioned in this specification.

1.3.4

Codes

All reference to codes, regulations, local and federal laws and regulations referred to in the Contract
documents shall mean and are intended to be, the latest edition, amendment or revision of such
reference in effect on the date of submission of the tender documents by the tendering party.

1.3.5

Governing Utility Departments and Agencies

List of governing bodies contained in Section 1.8.2 is not intended to be exhaustive. The Contractor
shall carry out all works in strict accordance with current codes, regulations, local and administrative
orders, specifications, and standards of all government bodies, even when these standard
specifications does not list such agencies.

This Contract may include separate Contract Documents for constructing specific utility relocation or
new installation work. These documents may include Contract plans, specifications and bills of
quantities prepared by the responsibility utility agency and/or their consultant. The Contractor shall
provide all necessary coordination with the utility agency and their consultant and meet all

requirements of those separate Contract Documents, as directed or approved by the Engineer.
Primary utility departments or agencies include:

a. Water and electrical services:

1. Abu Dhabi Water and Electricity Authority (ADWEA), and subsidiaries:

Abu Dhabi Water and Electricity Company (ADWEC)

ii.

Abu Dhabi transmission and Dispatch Company (TRANSCO)

iii.

Abu Dhabi Distribution Company (ADDC)

iv.

Al Ain distribution Company (AADC)

Al Mirfa Power Company (AMPC)

b. Sewerage services:

1. Abu Dhabi Sewerage Services Company (ADSSC) a subsidiary of ADWEA

c. Irrigation and drainage (includes underground pumping permits) services:

1. Abu Dhabi City Municipality

d. District cooling services:

1. Tabreed Abu Dhabi

e. Gas services and oil/gas pipelines:

1. Abu Dhabi National Oil Company (ADNOC)

f. Telephone services:

1. Etisalat

2. Du

The Contractor, if approved by the relevant utility department, shall perform all work related to the
installation of the proposed utility. If the Contractor is not approved by the relevant utility department
to do such work, the Contractor will be required to employ a subcontractor who is approved by the
relevant utility department and included on their current list of certified Contractors. A subcontractor
so approved shall perform all work related to the complete installation of the system.

1.4

Unit Prices

A unit price is an amount proposed by bidders, stated on the tender form as a price per unit of
measurement for materials or services to be added to or deducted from the Contract amount by
Variation Order. It allows for the estimated quantities of work to be increased or decreased.

1.4.1

Procedures for Unit Prices

Contractors shall provide unit prices in compliance with the procedures as outlined in the

Owner’s

Construction Contract Administration Procedures, the Construction Supervision Manual, the
Procurement and Contracts Manual, and the following requirements:

1. Unit prices include all necessary labour materials, equipment cost for delivery, installation,

insurance, overhead, profit, applicable taxes and all obligations, and liabilities of every kind
arising under the Contract.

2. Measurement and payment: Refer to individual specification sections for work that requires

establishment of unit prices. Methods of measurement and payment for unit prices are
specified in the bills of quantities.

3. Owner reserves the right to reject the Contractor's measurement of work-in-place that involves

use of established unit prices, and to have this work measured, at the Owner

’s expense, by an

independent surveyor acceptable to the Contractor.

4. Refer to the tender documents, bills of quantities.

1.5

Metric Measurements

Owner  construction  projects  use  metric  units  of  measurements  in  accordance  with  ASTM  E380.
Metric units used are the International System of Units (SI) developed and maintained by the General
Conference  on  Weights  and  Measures  (CGPM).  Name  International  System  of  Units  and  the
international abbreviation SI were adopted by the 11th CGPM in 1960. In some cases both metric
SI  units  and  English  inch-pound  (I-P)  units  are  included  in  a  section  of  the  specifications;  the
measurements used in any particular case have been determined by the circumstances involved.
Specifications  requiring  metric  measurements  may  contain  requirements  for  equipment  (for
example,  printers  and  HVAC  systems)  described  in  I-P  units;  in  which  case  equivalent  metric
substitution will be allowed. Specifications requiring metric measurements may include references
to related non-metric industry and/or government standards in which case the requirements of the
standard govern.

1.5.1

Use of Measurements

Measurements shall comply with the following requirements:

1. Measurements shall be in SI units unless otherwise authorized. The Contractor shall be

responsible for all associated labour and materials when authorized to substitute one system
of units for SI units and for the final assembly and performance of the specified work and/or
products.

2. Hard metric: A hard metric measurement is indicated by an SI value with no expressed

correlation to an I-P value (e.g., 38 mm). Products are considered to be hard metric when they
are manufactured to metric dimensions or have an industry recognized metric designation.

3. Soft metric: A soft metric measurement is indicated by an I-P value which is a mathematical

approximate of the SI value shown in parentheses (e.g., 1-1/2 inches (38.1 mm)). Metric
measurements shall govern while the I-P value is provided for information.

4. Neutral: A neutral measurement is indicated by an identifier which has no expressed relation

to either an SI or an I-P value (e.g., American Wire Gage (AWG) which indicates thickness but
in itself is neither SI nor I-P).

1.5.2

Coordination of Measurements

Discrepancies, such as mismatches or product unavailability, arising from use of both metric and
non-metric measurements and discrepancies between the measurements in the specifications and
the measurements in the Contract plans shall be brought to the attention of the Engineer for
resolution.

1.5.3

Relationship of Measurements to Submittals

Submittals for Engineer approval or for information only shall cover the SI products actually being
furnished. The Contractor shall submit the required drawings and calculations in the same units used
in the Contract documents describing the product or requirement unless otherwise instructed or
approved. The Contractor shall use ASTM E380 as the basis for establishing metric measurements
required to be used in submittals.

1.6

Work Restrictions

In addition to all responsibilities that are specifically described in the Contract documents, the
Contractor shall have all responsibilities specified throughout these standard specifications.
Wherever a Contract or Contractual documents stipulate that an item or work or special conditions
require the approval of the Engineer, such approval by the Engineer shall not relieve the Contractor
of his duties or responsibilities under the Contract.

ENERAL

1.6.1

&RQWUDFWRU¶VResponsibility

The Contractor shall be deemed to have visited the site prior to submitting his Tender and to have
made all necessary inspections and investigations and allowed in his Tender for the following:

1. Means of access and working space

2. Nature of the ground and sub-soils

3. Presence of existing foundations or other hidden obstructions

4. Level of the water table

5. Extent of rock

6. Support to neighbouring properties and structures

7. All other factors affecting the work

Any information made available to the Contractor, either in these documents or by any other source,
will not relieve the Contractor of his responsibility to decide for himself the nature and extent of the
work, nor will it guarantee that similar conditions will apply on other parts of the site.

The Contractor shall be deemed to have contacted the relevant authorities to establish the presence
of any existing, live or redundant services, adjacent to or passing through the area of work and shall
be deemed to have allowed in his Tender for their location, diversion, demolition or removal

Borehole logs and related information depict subsurface conditions only at the specific locations and
at  the  particular  time  designated  on  the  logs.    Soil  conditions  at  other  locations  may  differ  from
conditions  occurring  at  the  borehole  locations.    Passage  of  time  may  result  in  a  change  of  the
subsurface  conditions  or  water  levels  at  the  borehole  locations.    Owner  does  not  guarantee  any
statements, opinions, or conclusions contained in the soil report.

The Contractor shall assume all responsibilities for:

1. Deductions and conclusions made by him regarding the nature of the soil to be dewatered and

excavated

2. Difficulties involved

3. Maintaining the dewatering at required elevations

4. Carrying out his own investigation to satisfy himself of the validity of any subsoil information

1.6.2

Program of Works

The program of works shall be a project master program resource loaded submitted by the
Contractor to the Engineer in accordance with the Department of Transport Conditions of Contract
and Schedule of Further Requirements. The program of works shall also include Manpower
Histogram, Cash flow, S-

Curve and KPI’s. The program shall be prepared utilising the Precedence

Diagram Method (PDM) of CPM scheduling technique, which shall contain the following:

1. Interim, milestone completion dates. Phasing and staging of the work as specified shall be

prominently identified;

2. Mitigations of delay;

3. Procurement, fabrication, delivery installation and testing of major materials and equipment;

4. Submittals and Engineer/Own

er’s review of material samples based on priority list as for work

progress;

Submittals and Engineer/Owner’s review of shop drawings;

6. Interfacing, coordination and dependencies with preceding, concurrent and follow on

Contractors;

7. Restrictions for manpower, material and/or equipment, if any;

8. Delivery of Owner furnished equipment, if any;

9. Work to be performed by other agencies which affect the schedule;

10. Maintenance of accesses to all the residential, recreational, business and institutional

premises affected by the works;

11. Traffic detour planning and phasing;

12. Any restrains and restrictions imposed by service authorities or the Police;

13. Construction activities exceeding 14 days in duration shall be subdivided to an appropriate

level, if required;

14. Schedule of activities shall be sufficiently described to include what is to be accomplished

and which work areas. Activity duration shall be expressed in whole days (8hr/day) and the
activity duration to be consistent with Production rate and Quantity as per proposed resources.
Work that is to be performed by the subcontract shall be clearly defined;

15. The schedule diagram shall indicate a clearly defined critical path (not more than one), which

shall be prominently distinguished;

16. The schedule should not contain more than 15% of the schedule activities on the critical path;

17. Program shall be resource loaded and schedule should show the proposed production rate

and quantity of each activity;

18.

A written narrative shall accompany the schedule submittal describing the Contractor’s

approach and method of completion of the work. The narrative shall be adequate for the
Engineer/Owner to understand the schedule and cross referenced to the requirement of Base
line schedule check list. Also a schematic drawing showing the resources movement in the
Project and the work methodology.

19. A calendar time scaled CPM network diagram schedule covering the complete Project shall

be submitted. The schedule shall conform to the work-hours and constraints as outline in the
Contract documents.

20. The Contractor shall maintain a project scheduler qualified in CPM scheduling techniques

and familiar with the latest version of Primavera/MS Project-Project Planner Scheduling
Software. The scheduler shall have the primary responsibility for monitoring status, updating
progress and revising the program to reflect current contract status. The Contractor shall verify
qualification of the scheduler by providing a description of construction project to which
successful CPM network analysis has been applied. Submit a resume of a proposed scheduler
for the approval of the Engineer/Owner.

1.6.3

Site Logistics Plan

The Contractor shall submit a Site Logistics Plan for review and approval of the Owner and Engineer.

1.6.4

Plant, Equipment and Labour

Contractor’s supply of plants, equipment, and labour shall comply with the following requirements:

1. The Contractor shall submit with his project schedule a detailed list of plant, equipment and

labour which he undertakes to provide onsite to carry out the works. This list shall be as
complete as possible and shall satisfy the Engineer as to its compatibility with the program of
works. List shall include for each item of plant and equipment the type, manufacturer, model,
identification number and year of manufacture. List shall include for labour the classifications
and number for each classification.

2. The Contractor shall bring on the site of the works all of the items listed and such other

equipment as may be required to expedite and complete the works and in no case thereafter
shall the Contractor remove from the site any item of plant or equipment, or portions thereof,
without the written consent of the Engineer.

3. All plant and equipment necessary for the construction of any type or section of the works must

be on site and inspected and approved by the Engineer before the commencement of that
particular type or section of the works. Any plant or equipment or portion thereof which
becomes worn or defective shall be immediately repaired or replaced to the satisfaction of the
Engineer.

1.6.5

Limits and Access to and Use of Site

Contractor

’s responsibilities regarding any site access and use limitations:

1. Limits of the site shall be the limits of the areas defined on the Contract plans.

2. Access to the site is generally available as indicated on the Contract plans; the Contractor shall

obtain such land as may be required and construct, maintain and remove such access roads
as may be required for his construction operations and as directed by the Engineer. Such
access or temporary roads constructed by the Contractor for his use shall not be constructed
for use as public detours. No separate payment will be made by the Owner for such access or
temporary roads.

3. Preparation, construction and maintenance of temporary roads within the site area shall be the

Contractor's responsibility.

4. The Contractor shall take such measures as are necessary and as are directed by the Engineer

to reduce and control any dust, sediment and pollution within the site as required in Section,
1.15.9.

5. The Contractor shall not disturb, damage or pull down any hedge, tree or building either within

or outside the site areas without the written consent of the Engineer unless otherwise indicated
on the Contract plans or specified in the Contract documents.

6. As may be prescribed in the Contract or directed by the Owner, the extent of portions of the

site that the Contractor is to be given possession of and the order in which such portions shall
be made available to him are subject to any requirements in the Contract and as to the order
in which the works shall be executed. Owner will, with a written order to commence the works,
give  to  the  Contractor  possession  of  so much  of  the  site  as may  be  required  to  enable the
Contractor to commence and proceed with the construction of the works. The Contractor shall
submit  a  written  notice and  request to the  Owner  to make  available  to  the  Contractor  such
further portions of the site as may be required to enable the  Contractor to proceed with the
construction of the works with due dispatch in accordance with the Work program.

7. The Contractor shall provide and maintain proper and safe passages across all open

excavations at all necessary places on the site and wherever directed by the Engineer. In case
of private or public lands, the Owner will provide a right-of-way along which the works are to
be carried out and the Contractor shall confine the whole of the works' materials, plant and
workmen to such right-of-way.

8. Relocation of utilities shall be extended beyond the limits of the site where required for

completion of the works and as directed by the Engineer or as shown on the Contract plans.

1.6.6

Land for Contractor

¶VUse

Land provided for the Contractor use:

1. The Contractor shall be provided an area on which to situate his site offices and an additional

area for laydown. It shall be the Cont

ractor’s responsibility to obtain all necessary approvals

and permits for use of property for his site purposes.

2. The Contractor shall be responsible for furnishing all utilities including but not limited to water,

electricity, sewage disposal and telephone. The Contractor shall note that potable water,
electricity and sewage disposal is not available from the public utility systems on island and
that the Owner makes no guarantees of the availability of telephone service.

ORKS

Second Edition -SEP 2020

Table 4-18

: Contractor’s mix design submittal requirements

Names of Contract, Contractor, and the individual submitting mix
design

For each cementitious material:

•

Mass per cubic metre

•

Proposed source

•

Type, class, or grade

•

Specific gravity

•

Material certification

Date of submittal

Contract number

Unique identification for each mix design

Description of use for the particular mix design on the specific project

Concrete class

For each admixture:

•

Manufacturer

•

Product name

•

Type

•

Estimated range (ml/m3)

•

Material certification

Concrete supplier, plant location, and plant number

Gradation of aggregate

Maximum water-to-cement ratio

Mass of mixing water per cubic metre of concrete

Indication of use of recycled or reclaimed water

Mix design density (kg/m

)

For each aggregate component:

•

Pit number

•

ASR results

•

Grading

•

Percent of total aggregate

•

Specific gravity

•

Saturated surface dry
mass per cubic metre

•

Material certification

Test results and the calculated average for 28-day compressive
strength (MPa)

Test results and the calculated average for 14-day flexural strength
(MPa)

Fineness modulus

Proposed ASR mitigation method

Required  average  28-day  compressive  strength  shall  be  selected  per  the  American  Concrete
Institute  (ACI)  318M,  Chapter  5,  Section  5.3.2.  In  addition  to  the  requirements  set  out  in  these
specifications, ACI 211.1 and ACI 318M shall be consulted to determine proportions. Fine, coarse,
and combined aggregate shall conform to the applicable requirements of Section 4.3.7.

All  preliminary  trial  batches  and  testing  necessary  to  substantiate  the  proposed  mix  designs  and
demonstrate that the mix design conforms to specification requirements shall be performed by the
Contractor. All trial batches and testing shall incorporate admixtures per the concrete mix design.
Concrete  place-ability,  workability,  and  strength  shall  be  the  responsibility  of  the  Contractor.
Contractor shall notify the Engineer in writing of any proposed mix design modifications. No concrete
of  the  revised  mix  design  shall  be  placed  until  the  Engineer  has  reviewed  and  provided  written
approval of the revised mix design to the Contractor. Any delay due to such changes shall be entirely
the responsibility of the Contractor and no Claims for delay or compensation shall be considered,
except as follows:

1. When coloured concrete is required, the Contractor shall submit preliminary samples of the

coloured concrete.

2. Samples shall be a 1 m by 1 m by 100 mm panel for each mix to be coloured.

3. Panels shall be finished and cured in the same manner as the concrete in the works.

Concrete may be sampled at any time during the work by the Engineer to check compliance with the
approved mix design.

4.3.10.1

Proportioning of Materials

Proportioning of materials in the concrete mix shall be selected by the Contractor based on the
specified performance criteria. Cementitious material and other additive quantities used in the

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