Prestressed Concrete Exam Questions with Complete Solutions

Prestressed Concrete Exam Questions with Complete Solutions What is prestressed concrete - Correct Answer The tensioning of steel - stranded cables prior to concrete placement. the tensioning of steel- stranded cables after concrete has been placed and hardened. Concrete that has recieved a tensile load prior to any service loads. The use of a prestressed concrete system will achieve the following - Correct Answer Reduced thickness of concrete, less traditional reinforcing steel, and adequate crack control Once tensioned, Tensioning cables are held securely in a tensioned state by - Correct Answer wedges that have been seated The end of a cable that terminates within a concrete slab,thus rendering it inaccessible from outside the concrete is known as - Correct Answer the dead emd The presence of sheathing on a wire-stranded cable indicates that - Correct Answer it will be used in an unbonded system application The most common post-tension cable tendons in use today are made up of - Correct Answer steel strands of wire wrapped together In a unbonded system, the force applied to the concrete after tensioning - Correct Answer comes from the anchorage zone only Post-tension manufacturing plants must be certified by - Correct Answer PTI unbonded plant certification program Prior to cutting the tendon tails after tensioning,the field records of stressing activities must be forwarded to and approved by - Correct Answer the engineer of record In the event that a new set of stress