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WorksheetsConcrete
Total questions: 20
Worksheet time: 28mins
Concrete is made up of cement, sand, gravel, and water
True
False
Natural aggregates only include recycled materials
True
False
Concrete cannot take different shapes
True
False
One of the advantages of concrete is that it is fire resistant
True
False
Concrete has a long curing time of about 28 days
True
False
Which of the following is a type of cement?
Portland Cement
Iron Cement
High Heat Cement
Gray Cement
What is the primary chemical process in setting concrete?
Evaporation
Hydration
Melting
Oxidation
Which type of aggregate is produced through industrial processes?
Natural Aggregates
Recycled Aggregates
Lightweight Aggregates
Organic Aggregates
A ________ is a place where stone or other materials are extracted from?
factory
landfill
beach
quarry
________ refers to the process where cement absorbs water and binds the materials.
Hydration
Mix
Curing
Hardening
________ refers to the process by which concrete is allowed to set slowly.
Hydration
Mix
Curing
Hardening
What is on disadvantage of concrete?
Weak in tension
High strength in compression
Moldability
Fire resistance
What is on advantage of concrete?
Weak in tension
High strength in compression
Long curing time
Cannot be stored
Which of the following mixes indicates a higher amount of cement relative to sand and aggregates?
1:2:4
1:3:6
2:1:4
3:1:3
All the following are good aggregate qualities for concrete, except?
free of sediments
smooth
rough and porous
not hollow
Concrete is mainly composed of a mixture of (a) , sand, gravel, and water
Concrete aggregates can be categorized into three (3) types: natural, (a) , and recycled
Concrete mixing ratio is (a) : Sand : Aggregates
The curing time for concrete is approximately (a) days.
Cement mainly consist of a combination of limestone and (a) .
