Prestressed Concrete Questions with 100%
complete and Correct Answers |A+ Grade
What is prestressed concrete - 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 received a tensile load prior to any service loads.
The use of a prestressed concrete system will achieve the following
- 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 -
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 - Answer- the dead end
The presence of sheathing on a wire-stranded cable indicates that - Answer- it will
be used in an unbonded system application
The most common post-tension cable tendons in use today are made up of -
Answer- steel strands of wire wrapped together
, Prestressed Concrete Questions with 100%
complete and Correct Answers |A+ Grade
In a unbonded system, the force applied to the concrete after tensioning -
Answer- comes from the anchorage zone only
Post-tension manufacturing plants must be certified by - 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 - Answer- the engineer of record
In the event that a new set of stressing equipment is delivered to project, the
equipment should contain___ for review prior to being used on-site
- Answer- a current calibration chart relating gauge pressure to force applied
According to the field procedures manual for unbonded single strand tendons,all
of the following items are necessary for post- tension document control except
- Answer- concrete strength results
When reporting stressing results,the following information is necessary to record
- Answer- Jack and gauge serial #
&
elongation measurements and percentage deviation
When moving post-tension cables across the site, the use of __ is permitted
complete and Correct Answers |A+ Grade
What is prestressed concrete - 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 received a tensile load prior to any service loads.
The use of a prestressed concrete system will achieve the following
- 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 -
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 - Answer- the dead end
The presence of sheathing on a wire-stranded cable indicates that - Answer- it will
be used in an unbonded system application
The most common post-tension cable tendons in use today are made up of -
Answer- steel strands of wire wrapped together
, Prestressed Concrete Questions with 100%
complete and Correct Answers |A+ Grade
In a unbonded system, the force applied to the concrete after tensioning -
Answer- comes from the anchorage zone only
Post-tension manufacturing plants must be certified by - 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 - Answer- the engineer of record
In the event that a new set of stressing equipment is delivered to project, the
equipment should contain___ for review prior to being used on-site
- Answer- a current calibration chart relating gauge pressure to force applied
According to the field procedures manual for unbonded single strand tendons,all
of the following items are necessary for post- tension document control except
- Answer- concrete strength results
When reporting stressing results,the following information is necessary to record
- Answer- Jack and gauge serial #
&
elongation measurements and percentage deviation
When moving post-tension cables across the site, the use of __ is permitted
