Concrete Questions Flashcards
What is the underside of a concrete beam called?
The soffit
What name is given to the anchor point of a pre stressed tendon used in reinforce a concrete structure
Cachetage point
What is meant by a jarlan hole?
A perforation in a breakwater wall
What is meant by the term soffit, when applied to concrete inspection?
the underside of the beam
How many defect types are there in concrete inspection?
8
How does concrete protect the reinforcement cage against corrosion?
Passivation
When inspecting concrete which of the following would be described as a blemish?
A construction joint
What is meant by a cachetage point?
An anchor point of a pre-stressed tendon
What property of concrete prevents the steel reinforcement from corroding in a concrete structure?
The high pH environment
Pre or post stressing tendons are placed into which of the following in a concrete beam?
Answer: Duct
a. Tremie
b. Cathetage Points
c. Duct
d. Post Point
In a concrete beam, pre or post stressing tendons are typically placed into a duct. This allows for the tendons to be tensioned and then bonded to the concrete, either before or after the concrete has set. The duct serves as a conduit for the tendons and is an essential component in the design of prestressed concrete structures, as it facilitates the tensioning process and ensures the proper transfer of forces from the tendons to the concrete
Slipform shuttering will leave a set of regular horizontal ridges known as?
Weatherboarding
Which of the following would not be considered a category A defect, on a concrete structure?
Answer: Embedded object
a. Variable Cover
b. Faulty Repair
c. Delamination
d. Embedded Object
Which of the following would you not find on a concrete structure?
Pile guide
The anchor point for a pre-stressing tendon in a concrete beam is the?
Cachetage point
Which of the following is an in-service defect?
Popout
