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They generally require formwork for columns, truss girders, U beams and bridge girders. Besides these, formwork for some special structures such as cable ducts, culverts, power substations are also demanded. All the concrete dimensions are provided by the customers. Mechanical or hydraulic equipment are provided for erection and dismantling of the formwork. Heavier design pressures are used at the skin and the support members of the mold compared to the actual hydrostatical pressure of the concrete to provide longer operational life. Connection and corner details are all produced meticulously to prepare the mold to the next pour in the shortest time. |