Standard Construction Specifications Part 2 Abu Dhabi Page

In Abu Dhabi, Standard Construction Specifications (SCS) Part 2 typically refers to the detailed technical requirements and specific construction methods that support the general road and infrastructure frameworks. These standards are governed by the Abu Dhabi Quality and Conformity Council (QCC) and the Department of Municipalities and Transport (DMT). Overview of Part 2 Specifications

While Part 1 focuses on general road works, Part 2 contains the granular technical specifications required to execute and support those projects. It is often used in conjunction with the Standard Drawing Guidelines (TR-541 Part 2), which provides geometric and civil works drawings.

Key technical areas typically covered in Part 2 or its supporting geotechnical documents (like TR-509-2) include:

Geotechnical Requirements: Detailed standards for subsurface investigation, soil improvement, and foundation performance.

Material Standards: Specific requirements for materials such as concrete, asphalt, fill, and backfill. standard construction specifications part 2 abu dhabi

Civil & Structural Works: Technical specifications for masonry, plastering, painting, and waterproofing.

Infrastructure Systems: Standards for stormwater, subsoil drainage, and irrigation systems. Performance & Safety Criteria

Recent updates (such as those in TR-509-2) establish strict performance benchmarks for construction:

Settlement Limits: Total settlement for road foundations must not exceed 25mm at 100% design load. Compliance & Regulatory Context

Safety Factors: A minimum safety factor against liquefaction of 1.25 is required.

In-situ CBR: Improved ground must have a California Bearing Ratio (CBR) of at least 10% at 5mm penetration. Compliance and Application

All contractors and consultants must refer to the latest versions available via the DMT E-Library. Failure to adhere to these specifications can impact the acquisition of necessary permits and approvals from the TAMM portal. STANDARD DRAWING GUIDELINE - PART 2 - Sign In

In Abu Dhabi, Part 2 of the Standard Construction Specifications varies by sector, focusing on technical requirements for roads, infrastructure, and telecommunications, including the TR-509-2 geotechnical manual. These specifications, managed by the Department of Municipalities and Transport (DMT) and the Abu Dhabi Quality and Conformity Council (QCC), define material standards, installation methods, and structural requirements. Access full documents at QCC Jawdah Portal or the DMT E-Library. STANDARD CONSTRUCTION SPECIFICATIONS - Sign In 40mm for precast in non-marine environments.

Feature: Standard Construction Specifications Part 2 (Abu Dhabi)

The "Standard Construction Specifications" issued by the Abu Dhabi Municipality (ADM)—and widely adopted across the Emirate—are the technical backbone of the construction industry in the region.

While Part 1 typically covers General Requirements (Preliminaries, contractual procedures, site establishment, and measurement rules), Part 2 is the technical engine room, detailing the specific materials and workmanship standards required for physical execution.

Here is a detailed feature breakdown of what Part 2: Materials and Workmanship entails.

4. Integration with Abu Dhabi Regulatory Framework

| Code/Regulation | Relation to Part 2 | |---------------------|------------------------| | Abu Dhabi International Building Code (ADIBC) 2021 | Part 2 provides earthwork provisions not detailed in ADIBC Chapter 18 (Soils and Foundations) | | Estidama Pearl Building Rating System (PBRS) | Earthwork surplus, dust control, and reuse of excavated material contribute to resource efficiency credits | | EAD Waste Management Rules | Mandatory segregation of C&D waste and disposal at approved landfills (e.g., Al Dhafra) | | Abu Dhabi Occupational Safety & Health Center (OSHAD) | Excavation depth > 1.2 m requires shoring; confined space protocols for deep excavations |

Compliance & Regulatory Context

• Mandatory for government projects – All Abu Dhabi municipality tenders reference SCS Part 2.
• Often adopted by private developers (e.g., Aldar, Modon) as a baseline.
• Works alongside Abu Dhabi International Building Code (ADIBC) and Estidama Pearl Rating System.
• Non-compliance results in stop-work orders, fines, or rejection of as-built submissions.

3.5 Compaction and Testing (Clause 2.6)

• Target dry density: ≥ 95% of modified Proctor (ASTM D1557) for most areas; 98% for under pavements and foundations; 100% for select zones under machine foundations.
• Method: Usually 4 passes of a 10–12 ton vibratory roller for granular materials; sheepsfoot for cohesive (rare).
• Field testing frequency: For every 2,500 m² of compacted area or each 300 m³ of fill, whichever is smaller:
  • Nuclear density gauge (ASTM D6938)
  • Sand cone (ASTM D1556) for calibration or disputes
• Moisture control: Fills must be at or within ± 2% of optimum moisture content (OMC). In summer, water spraying before compaction is mandatory to prevent dust and achieve density.

Chapter 5: Concrete Works (Infrastructure)

While building concrete follows other codes, infrastructure concrete (manholes, culverts, retaining walls) is covered here.

• Minimum compressive strength: 30 MPa (C30) for unreinforced, 40 MPa (C40) for reinforced in aggressive soil.
• Cement type: Sulfate-resisting Portland cement (SRPC) mandatory for all ground-contacting concrete due to sabkha sulfates.
• Cover to reinforcement: Minimum 50mm for cast-in-situ, 40mm for precast in non-marine environments.