Terms
Consistency or wetness of a mixture
What is slump?
Dry powder made of limestone
What is cement?
Structure made of wood or metal that confines concrete
What is form?
Using a straightedge such as a 2X4 to level concrete
What is screening?
what is the number 1 priority?
What is safety?
Thoroughly mixing all ingredients
What is uniformity?
Mixture of ingredients such as cement and aggregates
What is concrete?
These are dug in the ground of footings of buildings
What are trenches?
This is used to impact the concrete at the surface and to make it easier to finish
What is bull float?
This type of filter is cleaned and squeezed
What is oil type filter?
Ease at which concrete can be placed and shaped
What is workability?
Sand would be this type of aggregate
What is fine?
In warm weather, forms should be place for this duration
What is 2-3 days?
Wood floats, stiff brooms, or burlap is used to add this to concrete?
What is texture?
Common symbol of 1/2RD stands for?
1/2 round
This is expressed by a 3 digit number Ex. 1-2-3
What is ratio?
This type of aggregate is gravel, rocks, etc.
What is course?
In colder weather, this is the duration for how long concrete to be in forms
What is 4-6 days?
_____ is needed because concrete has low tensile strength and high compressive strength
What is reinforcement?
Type of metal that contains Iron
What is Ferrous?
Does not contain course aggregates and is used to join bricks and blocks.
What is mortar?
This weights 150-160 pounds
What is a cubic foot of concrete?
_________ should be poured or placed in forms evenly
What is concrete?
______ is used to add strength to rebar (the material)
What is rebar?
Three things that are components of a fire triangle
What is fuel, heat, and oxygen?