Our Services


Post Tensioning - Buildings

With a very experienced design team, SF is well positioned to propose to our clients the most suitable post-tensioned slab system for their buildings.

Depending on the functional requirement, span, site constraint, loading requirements, etc., different types of slab systems will be suitable for different buildings,
as listed below.

  • PT Flat Slab system
  • PT Flat Plate system
  • PT Beam with PT Slab
  • PT Waffle slab
  • PT Transfer Girders and Plates
  • PT Voided Slab

PT Flat Slab system
PT Flat Slab system
PT Flat Plate system
PT Flat Plate system
PT Beam with PT Slab
PT Beam with PT Slab
PT Waffle slab
PT Waffle slab
PT Transfer Girders and Plates
PT Transfer Girders and Plates
PT Voided Slab
PT Voided Slab

Working Sequences:

  • Completion of Bottom Shuttering
  • Completion of Bottom Nominal Reinforcement.
  • Laying of GI Ducts and Placing End Anchorages
  • Fixing of Ducts at End Anchorages.
  • Insertion of HT Strands into ducts
  • Fixing of Chair Bars to achieve Tendon Profile.
  • Fixing of Dead Ends and Grout Vent
  • Completion of Top Reinforcement.
  • Concreting of the Slab / Beam
  • Removal of Block outs and Fixing of Anchor Blocks and Wedges
  • Carrying out of Stressing Operation.
  • Cutting of Excess Strand and patching up the Live End anchorages.
  • Carrying out of Grouting Operation.
  • Removal of Supports with providing minimum props.

Sequences For Construction Of Post Tensioning Slab

Flat Shuttering work
Bottom Bar Reinforcement
Laying of GI Ducts
Fixing of Ducts at End Anchorages
Inserting of HT Strands
Fixing of Chair Bars


Fixing of Grout Vent
Concreting of Slab
Fixing of Anchorages
Stressing Work
Grouting work

Post Tensioning - Bridges

Application of Post-Tensioning is a very common feature in bridges, especially those with requirement of larger spans.

Post-tensioned tendons are found extensively in bridges that are constructed using balance cantilever method, incremental launching method,
precast or in situ girders, etc

In-site Post-tensioned Box Girder & Cross Head
In-site Post-tensioned Box Girder & Cross Head
Long Spanned Cable-Stay Bridge
Long Spanned Cable-Stay Bridge


Prestressed Precast Beams (PSPC U, I, T-Shapes)
Prestressed Precast Beams (PSPC U, I, T-Shapes)
Precast Segmental Elements
Precast Segmental Elements


Heavy Lifting, Launching & Pulling Method & Construction
Heavy Lifting, Launching & Pulling Method & Construction

Post Tensioning - Circular Concrete Structures

Application of Post Tensioning in Circular Structures found to be more effective in addressing hoop stresses.

Post-tensioning are found extensively in Egg shaped digester, water tanks, LPG / LNG Tanks, Nuclear Tanks, etc.,


Egg-shaped Digester
Egg-shaped Digester
Water Tank
Water Tank

LNG / LPG Tank
LNG / LPG Tank
Nuclear Tank
Nuclear Tank

Engineering & Consultancy Services In Setting Up Precast Prestressed Concrete Product Business

  • Plant setting Up
  • Design & Technical Consultancy
  • Engineering & Production Know-How Training & Knowledge Transfer


Repair and Strengthening

We are providing repair and strengthening works both in buildings and civil engineering structures.

Methods of repair and strengthening that are most commonly used include the following:

  • CFRP and GFRP
  • Diamond Core drilling
  • Drilling and Rebar Fixing
  • Diamond Sawing
  • Breaking : RCC, Mass foundation / Rock Breaking
  • Steel plate bonding
  • External post-tensioning
  • Prepacked grouting