Pre-stressing bars are applied for permanent works such as connecting various segments of bridge structures, shear keys for seismic resistance at the connection of segments or girders and piers, and reinforcement of piers that are subject to horizontal pre-stressing forces. They are also applicable for temporary works such as anchoring of temporary steel frame supports and lifting bars for segment launching trusses, and connecting bar segments before pre-stressing. These bars need to have sufficient strength properties to carry the heavy loads of structures and pre-loading to balance the external loads structures are subjected to at a later stage.
Sanfield offers smooth and fully threaded bars depending on the design requirements. The bars comply with ASTM A722, and are equivalent to BS4486 and JIS G 3109.
Homogeneous material, isotropic and with high tensile strength. Good resilience and resistance to fatigue.
High impact strength at various temperatures.
Large plasticity and very high ductility at low temperature.
Low stress loss on fine thread
The system can be used in both cases of bonded and unbonded pre-stressing internal and
Higher elongation compared to traditional products.
Wide range of corrosion protection such as cement grout, wax injection or coating with plastic heat shrinking sleeve.
High strength of bars leads to less congestion and ease of installation.
Ability to detention and re-tension.
Sanfield pre-stressing bars are designed in accordance with following standards;
Sanfield (India) Limited is the exclusive designers, manufacturers and installers of a wide range of High Performance, Specialized Construction Related Products, manufactured in Technical collaboration with various world renowned Companies.