METHOD STATEMENT FOR COLUMN PIER CONSTRUCTION

 

1. SCOPE OF WORK

This method statement outlines the procedures for the construction of a column pier for a skyway project, including excavation, reinforcement, formwork, concrete pouring, and curing.

2. REFERENCES

• Approved Construction Drawings

• DPWH Standard Specifications

• ASTM & ACI Codes for Concrete Work

• Safety and Quality Control Guidelines

3. RESPONSIBILITIES

• Project Engineer: Supervises execution and ensures compliance with specifications.

• Site Supervisor: Coordinates workers and material deliveries.

• QA/QC Engineer: Monitors quality control for concrete, rebar, and formworks.

• Safety Officer: Ensures compliance with site safety protocols.

4. MATERIALS & EQUIPMENT

• Materials:

  • Ready-mix concrete (as per design mix)

  • Reinforcing bars (Grade 40/60)

  • Formwork materials (plywood, steel, or timber)

  • Curing compounds

• Equipment:

  • Crane

  • Concrete pump

  • Vibrator

  • Welding machine

  • Scaffolding and ladders

5. METHODOLOGY

5.1 Survey & Layout

• Verify column pier locations as per the approved drawings.

• Establish reference points and levels using a total station or leveling instrument.

5.2 Excavation & Pile Cap Preparation

• Excavate as per the structural design depth.

• Install dewatering systems if needed.

• Compact the base and install lean concrete.

• Form and pour the pile cap as per structural drawings.

5.3 Reinforcement Works

• Cut, bend, and install rebar according to approved bar bending schedule.

• Use spacers and chairs to maintain proper cover.

• Secure all reinforcements with binding wire.

5.4 Formwork Installation

• Install steel or plywood formworks ensuring proper alignment and bracing.

• Apply release agent for easy stripping.

• Inspect formworks before pouring concrete.

5.5 Concrete Pouring

• Use ready-mix concrete with the specified design mix.

• Pour in layers of 1.5m max and use vibrators to remove air voids.

• Conduct slump test and sample cylinders for compressive strength tests.

• Allow concrete to set as per curing time specified.

5.6 Stripping of Formwork

• Remove formworks after achieving sufficient strength (as per structural specifications).

• Inspect for defects and conduct necessary repairs if needed.

5.7 Curing & Protection

• Apply curing compound or use wet hessian cloth for at least 7 days.

• Protect column pier from vibrations and impacts.

5.8 Finishing & Quality Inspection

• Check concrete surface for honeycombs and cracks.

• Conduct compressive strength tests on cube/cylinder samples.

• Perform a final quality inspection before proceeding to the next phase.

6. SAFETY & ENVIRONMENTAL REQUIREMENTS

• Workers must wear PPE (helmets, gloves, safety harness, and boots).

• Follow proper lifting and hoisting procedures.

• Maintain safety barriers around the work area.

• Implement dust and noise control measures.

7. INSPECTION & TESTING

• Pre-pour Inspection: Ensure formwork and reinforcement are in place.

• During Pouring: Monitor slump, temperature, and vibration.

• Post-pour Testing: Conduct compressive strength tests.

8. APPROVALS

This method statement shall be reviewed and approved by:

Prepared by:
Mark Arjay M. Arevalo
[Name]

Reviewed by:
QA/QC Engineer
[Name]

Approved by:
Project Manager
[Name]