Method Statement For Formwork

The purpose of this document is to lay down the systematic procedures for the various activities required for FORM WORKS to ensure that all works are carried out in accordance with the approved shop drawings and contract specifications.

This method statement is a general outline for fabrication and use of formwork for the project.

Reference documents and standards

  • Material Approval
  • Approved Shop Drawings
  • Project quality Plan PQP
  • Project HSE Plan

Definitions and abbreviations

PM:                 Project Manager

CM:                 Construction Manager

PE:                  Project Engineer

QCE:               Quality Control Engineer

SE:                  Site Engineer

QA QC:          Quality Assurance and Quality Control

PPE:                Personal Protective Equipment

HSE:               Health, Safety, and Environment

ITR:                Inspection Test Report

ITP:                 Inspection Test Plan

Responsibilities

  • The project Manager is responsible for overall project execution, quality, and safety. Adopt a leading role with respect to the Contractor’s quality and safety procedures. The PM is responsible for the overall implementation of this method statement.
  • The Project Manager shall ensure that the key personnel is well aware of the specifications of this method statement.
  • CM /Project Engineer shall arrange all materials, equipment, safety-related items & manpower with help from Engineers and foremen to resolve appropriate action for the smooth execution of the works.
  • Safety Engineer shall be responsible for a safe working environment & conditions. Coordinate with the Site Engineer to identify potential hazards before work and advise methods of safe working from new developments.
  • The surveyor shall be responsible for setting out levels, layout, and lines & establish top levels. Ensuring setting out books are properly maintained and filed when completed. Coordinate with the CONSULTANT surveyor in determining coordinates, levels, and limits.
  • QA/QC Engineer shall be responsible for ensuring that execution of works is complying with the approved method statement; specifications approved shop drawings and ensure ITR are submitted based on ITP requirements.
  • The site Engineer shall ensure that all works are carried out according to approved shop drawings. He shall direct the surveyor for the setting out lines & levels in concurrence with the Construction Manager/Senior Civil Engineer.
  • MEP Coordinator / Engineer shall be responsible for the proper execution of MEP works involved before, during, and after the works.

EQUIPMENT & TOOLS

  • SAW machine
  • Crane
  • Generator
  • Air compressor
  • Hand tools, hand saw, wire cutter, brush    
  • Line dry / String
  • Measuring tapes
  • Tamper
  • Spanners
  • Torch

The capacity/size of the above tools and equipment shall be judged in accordance with site conditions, requirements, and availability at the time of execution.

SAFETY & HEALTH

Safety of the personnel and properties is to be given prime importance and all the works are to be carried out without causing any accidents or property damages.

Formworks involve the following activities:

  • Storage
  • Transportation
  • Fabricating and fixing
  • Lifting of formwork at the Site
  • Removing of Formwork

Adequate access and egress should be provided to the site for work. All the personnel should wear basic personnel protective equipment.

All the equipment, tools, and tackles being used for the work should be in good working condition and maintained. All the personnel will be provided with a toolbox talk on the procedures to execute the work safely.

Formwork Procedure

  • All material delivered to the site shall be visually inspected for straightness, finish, and defects prior to use
  • Setting out shall be done by the surveyor prior to proceeding with formworks.
  • Each type of formwork for the raft, column, beam, and slab shall be erected as per approved shop drawings.
  • Prior to use formwork and supporting timber shall be checked for damage, surface condition, and warping.
  • Material shall be protected as necessary from the elements during transportation and storage.
  • Upon request Design calculation for the slab system shall be performed and submitted to the consultant for approval.
  • Well-trained manpower shall be deployed for all types of formwork erection.
  • Care shall be taken to ensure that any formwork system is installed and supported correctly when applied on-site conditions may vary. Visual inspection shall be carried out by the construction manager use for each element to ensure support provided is adequate for actual site condition. Every leg of scaffolding should be checked for tightness, rigidity, and proper bracing both ways.
  • Ensure that erected formwork is watertight to avoid any slurry leakage.
  • Concrete forms must be cleaned and any foreign material removed before concreting.
  • Ensure that sleeves and openings for all the MEP services are provided as per approved shop drawings
  • Formwork shall be checked for alignment, verticality, and leveling prior to proceeding with concrete pouring
  • The inspection shall be raised for the CONSULTANT inspection and approvals before proceeding to concrete pouring.
  • Striking of formwork shall be in accordance with the specification section of cast-in-place concrete.

Formwork Removal:

  • Obtain approval from the consultant before striking formwork for concrete work.
  • Make sure the concrete has reached minimum sufficient strength before removing the formwork.
  • While removing the formwork, ensure adequate safety measures are taken.
  • Formworks shall be cleaned as soon as they have been struck.
  • A good storage system is important to ensure that the formwork can be reused.
  • Code numbers can be used to identify them easily when they are needed.

Removal of shuttering / deshuttering time period should be as detailed below:

Location of FormworkDuration to Remove
  Walls, columns, and vertical sides of the beams 24-48 hours
Beams 7days
Removal of props under the slab spanning up to 4.5 m  7 days
Removal of props under the slab spanning more than 4.5 m  14 days
Removal of props under beams and arches spanning up to 4.5 m  14 days
Removal of props under beams and arches spanning over 4.5 m  21 days

Also read : Method statement for Casting columns and sheer walls.

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