Standard Construction Specifications Part 2 Abu Dhabi -

For road contractors, Part 2 supersedes many international standards regarding temperature thresholds. Key mandates:

Critical Clause 406.2.3: Testing frequency – A minimum of 3 core samples per 2,000 m² per layer. If density falls below 96% of Marshall density, the entire section must be removed and replaced at the contractor’s expense.

As Abu Dhabi pursues its Net Zero 2050 goal, expect the 2025–2026 revision of Standard Construction Specifications Part 2 Abu Dhabi to include:

Forward-thinking contractors should begin trialing these materials now. standard construction specifications part 2 abu dhabi

---

| Issue | Why it occurs | Penalty per typical contract | |-----------|------------------|----------------------------------| | Using on-site sabkha as fill | To avoid hauling cost | Full removal at contractor’s expense + recompaction testing | | Insufficient compaction passes | Schedule pressure | 50% reduction in payment for earthworks unit rates | | No dewatering during excavation | Underestimating AD’s high water table | Stop-work order, retesting of subgrade | | Not protecting utilities | Poor coordination | Full replacement cost of damaged fiber/gas/water lines + DMT fines (AED 10k–100k) |

---

Project: Residential infrastructure, Al Shamkha (Phase 2) – 2019

Issue: After first significant rainfall in 2020, road pavement showed longitudinal cracking and settlement adjacent to manholes. For road contractors, Part 2 supersedes many international

Investigation: Found that the contractor used imported dune sand (low PI) instead of selected granular fill for backfilling deep drainage trenches. SCS Part 2 Clause 6.19 specifically prohibits dune sand for trench backfill below roads.

Result: Mandatory excavation of 2.2km of road, removal of 12,000m³ of non-compliant sand, refill with 80/20 mix (aggregate/sand), and recompaction. Direct cost: 4.2 million AED. Schedule delay: 7 months.

Lesson: The Resident Engineer cannot "waive" Part 2 requirements. Deviation requires written NOC from DMT central committee. Critical Clause 406

---

This is the foundation of any project. SCS Part 2 mandates rigorous controls on:

Critical Clause: Subgrade modulus (k-value) must be verified using a Plate Bearing Test (ASTM D1195) before any granular sub-base is laid.