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State the method of Pre- Tensioning
It is a method of prestressing concrete in which tendons are stretched or tensioned before concreting. In this form of construction, concrete develops a bond with the surface of stretched tendons. When sufficient bond strength is developed in concrete so as to retain stretched tendons in their tensioned form, tendons are cut from outside. The inside embedded length of tendons keeps its stretched form inside concrete due to bond and the prestressing force is maintained inside concrete.
Advantages of bonded post-tensioning systems Some advantages of bonded post-tensioning systems over unbonded post-tensioning ones are the following : (a) Large reduction in
Determine the stage of Cracking moment of pre-stress At the stage of transfer of pre-stress in the pre-stressed beam element, only the pre-stressing force and the self weight
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Soil Classification: Based on particle size, the soils can be classified as under, adopting the IS soil classification system: 0.002 0.075 0.425 2.36 4.75
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