04-12-2014, 10:20 AM
Concrete in which there has been introduced internal stresses of such magnitude and distribution that the stresses resulting from given external loadings are counteracted to a desired degree. In reinforced concrete members the prestress is commonly introduced by tensioning the steel reinforcement.
![[Image: grouted2.jpg]](http://frontdesk.co.in/big/grouted2.jpg)
This internal stress is induced into the member by either of the following prestressing methods:
Pre-Tensioning : Apply prestress to steel strands before casting concrete;
Post-Tensioning : Apply prestress to steel tendons after casting concrete
http://frontdesk.co.in/prestress.html
![[Image: grouted2.jpg]](http://frontdesk.co.in/big/grouted2.jpg)
This internal stress is induced into the member by either of the following prestressing methods:
Pre-Tensioning : Apply prestress to steel strands before casting concrete;
Post-Tensioning : Apply prestress to steel tendons after casting concrete
http://frontdesk.co.in/prestress.html