Why pre- stress concrete structure must be used instead of Reinforced concrete structure to day.
The Pre-stressing in concrete structure is found more effective form reinforced concrete technology. To-day pre-stressing is preferred for large structures, must be adopted for all small concrete work also. It is required to replace RCC completely by Pre-stress concrete. Because of RCC have large section & less strength as compare to pre-stress concrete. In RCC System it is rein-forced first then loaded after casting, when ever, in the Pre stressing system, reinforcement which is could ‘tendons’ are used , as anchoring in concrete may classified in two ways first is pre- tensioning & other is post- tensioning. They are stressed by said methods first then casted & force is applied. It is found that, effective & less cost (Economic) anchoring devices must be available for the process of pre-stressing, Because of its initial investment is high so that, at less payment it must be possible to adopt easily. It is possible to make concrete be light weight& high strength. High strength alloy & Rich strength concrete may be used for large pre-stressing force applied.
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