II Post tension Process II Hydraulic jack & Control unit II Concrete Slab II Mechanical Systems II
The function of post-tensioning is to place the concrete structure under compression in those regions where load causes tensile stress. Post-tensioning applies a compressive stress on the material, which offsets the tensile stress the concrete might face under loading and Hydraulic jacks works on the Pascal's law that the pressure in closed container is the same at all points.