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WorksheetsProperties of Ceramics and Related Materials
Total questions: 10
Worksheet time: 5mins
Which of the following is NOT a requirement of freshly mixed concrete?
It must be easily mixed and transported.
It must not segregate during transportation.
It must have good flow properties.
It must be assigned a designated curing time.
Consistency of freshly mixed concrete is described using what term?
Consistency
Slump
Viscosity
Workability
The development of a layer of water on freshly placed (poured) concrete is called _________________.
bleeding
floating
skimming
hydration
The key to concrete strengthening (hardening) during the curing process depends upon what factor?
the type of concrete
the temperature of the ambient air
the addition of water to the concrete
the circulation of air around the concrete
Approximately how long does it take for concrete to cure to its optimum strength?
12 hours
2 days
1 week
1 month
Select all of the types of chemical bonds which occur in ceramics.
van der Waals
hydrogen
covalent
ionic
Into which category would refractories be placed?
advanced ceramics
technical ceramics
commodity ceramics
traditional ceramics
Indicate the three most common types of glass.
Borosilicate
Fusion
Phosphate
Soda-lime silica
The property that sets borosilicate glass apart from other types is its __________________.
high resistance to hydrofluoric acid
resistance to thermal shock
relatively inexpensive cost
ability to take on different colorants
The process of changing an organic polymer into carbon fiber is called _______________.
carbonization
deposition
evaporation
sizing
