CHAPTER 8 Flashcards
Reinforced concrete is a composite of steel and concrete that uses steel to provide the ______ strength it needs
Tensile
Concrete has good ______ strength but it’s ________ strength is weak
Compression
Tensile
Post tensioned concrete has steel tendons and rods placed under tension
After the concrete is poured
Reinforcing bars are normally placed at the ______ of concrete beams to provide its tensile strength. In a cantilever beam the reinforcing bars are placed at the _____ of the beam
Bottom
Top
In a building under construction if steel reinforcing rods in a column are visibly protruding from the column, the building
Should be immediately evacuated
In a building under construction, protecting steel tendons from fire that are used in tension concrete is of
Paramount importance
In a building under construction, post tensioning is sometimes performed in increments. Workers at construction sites will refer to this as
Stressing the tendons or jacking the cables
In a building under construction, if a wall formwork collapses at a construction site with workers trapped, adding
Sugar to the concrete will retard the setting of the concrete
In a building under construction, ________ cut the tensioned cables or rods of the post tensioned concrete
Do Not
You are a Battalion Chief operating at a fire in a commercial structure where you are concerned about fire extending to the combustible metal deck roof that is heating up from heavy contents fire. You would know that you have encountered such a fire if you receive a report from the members that they see
A blue wave of fire, several feet deep
