1. Survey

The location and layout of pier and abutment shafts shall be checked with reference to established control points and benchmarks created during pile foundation works.

• Longitudinal and transverse centerlines shall be verified before commencement of reinforcement and shuttering work.
• Survey coordinates and offsets shall be cross-checked with approved drawings.
• Levels and alignment shall be jointly verified with the AE before starting construction.

2. Reinforcement Work

2.1 Preparation of BBS

• Bar Bending Schedule (BBS) shall be prepared as per approved structural drawings.
• Submitted to AE for approval before fabrication.

2.2 Cutting & Bending

• Reinforcement bars shall be cut as per approved BBS using manual or machine cutting.
• Bars shall be bent as per approved shapes and dimensions.
• All reinforcement shall be cleaned before use.

2.3 Fixing of Reinforcement

• Reinforcement shall be placed and tied as per drawings.
• Prefabricated cages may be used for faster execution.
• Cover blocks, spacers, and chairs shall be provided for required cover.
• Check spacing, laps, anchorage, and verticality before concreting.

3. Formwork

• Formwork shall be fabricated as per approved drawings to maintain shape and alignment.
• Standard steel shuttering shall be used wherever possible.
• Joints shall be bolted and sealed using rubber/foam strips to prevent leakage.
• Adequate bracing and supports shall be provided against concrete pressure.
• Formwork shall be cleaned and shuttering oil applied before erection.
• Alignment and verticality shall be checked as per IRC SP:112 checklist.
• RFI shall be raised before concreting for AE approval.

4. Concreting

• Concrete shall be produced at batching plant using approved design mix.
• Transported using transit mixers to site.
• Slump shall be maintained between 80 mm to 130 mm.
• Concrete shall be placed using pump or crane bucket.
• Free fall shall not exceed 1.5 m.
• Compaction shall be done using 40/60 mm vibrators.
• Cubes shall be cast as per MoRTH Clause 1718.
• Construction joints shall be properly roughened and cleaned.
• Concreting shall be continuous to avoid cold joints.

5. De-shuttering

• Formwork shall be removed only after achieving required strength.
• Removal shall be done carefully using crane or manual tools.
• Edges and corners shall be protected during stripping.
• Defects shall be repaired immediately after removal.

6. Curing

• Curing shall start immediately after de-shuttering.
• Vertical surfaces shall be covered with wet hessian cloth.
• Continuous water sprinkling shall be ensured.
• Top surfaces shall be water cured or ponded.
• Minimum curing period shall be 14 days.
• Curing compound may be used where required.

7. Deployment of Equipment

Equipment deployment shall depend upon site requirement and construction schedule.

8. Quality Control

• Survey & alignment verification
• Reinforcement inspection
• Cover block & spacer check
• Formwork alignment & verticality check
• Concrete slump test
• Cube strength testing
• Construction joint inspection
• Surface finish inspection
• Dimensional tolerance check

9. Safety

• Compliance with IRC and MoRTH safety standards
• PPE: helmet, shoes, gloves, jacket, safety belt
• Secure working platforms and ladders
• Inspection of pumps and lifting equipment
• Barricading and signage at work zones
• Adequate lighting for night work
• Traffic diversion where required