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Construction Materials and Testing > Cement > Flashcards

Cement Flashcards

1
Q

Generic term for fine, gray or white powder manufactured using high temperature to produce silicates that in the presence of water will undergo hydration

A

Cement

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2
Q

Who patented the word “portland cement” in 1824?

A

Joseph Aspdin

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3
Q

Cementitious Materials

A

Calcium oxide “Lime”
Silicon Dioxide “Silica”
Aluminum Dioxide “Alumina”
Iron oxide

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4
Q

Materials used for Portland cement

A 
Limestone
Marl
Shale
Iron
Ore
Clay
Fly ash
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5
Q

Cement Manufacturing process

A 
Quarrying
Raw grinding
Homogenization
Burning
Finish grinding
Storage and packing
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6
Q

Kinds of cement:

A

Portland Cement

Blended Cement

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7
Q

Types of Portland Cement base on ASTM C150

A

Type 1,2,3,4,5,6a,7a,8a

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8
Q

Type 1 PC

A

For general purpose

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9
Q

Type 2 PC

A

Construction in water or soil with a moderate amount of sulfate

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10
Q

Type 3 PC

A

high strength at an early state

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11
Q

Type 4 PC

A

Massive concrete surfaces (dams)

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12
Q

Type 5 PC

A

Resist chemical attack by soil and water with high sulfate

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13
Q

Type 6A,7A,8A

A

cement used to make air-entrained concrete

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14
Q

Produced by intimately and uniformly intergrinding or blending two or more types of materials

A

blended cement

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15
Q

Blended cement primary materials

A 
Portland Cement
Ground granulated blast furnace slag
Fly ash
Silica fume
Calcinated Clay
Pozzolans
Hydrated lime
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16
Q

Types of blended cement

A 
Type IS
Type IP & Type P
Type I(PM)
Type S
Type I(SM)
17
Q

Type IS

A

Portland blast furnace slag cement

18
Q

Type IP & Type P

A

Portland-pozzolan cement

19
Q

Type I(PM)

A

Pozzolan modified Portland Cement

20
Q

Type S

A

Slag cement

21
Q

Type I(SM)

A

Slag modified Portland cement

22
Q

Two main raw materials used for Portland Cement

A

Calcareous substances

Argillaceous elements

23
Q

Calcareous substances

A

Chalk, limestones, marl, shells

24
Q

Argillaceous elements

A

rich in silica

25
Q

Major compounds of Portland Cement

A

Aluminates
Silicates
Sulfates

26
Q

Ingredient of Concrete

A

Cement

27
Q

A mixture of aggregates and paste

A

Concrete

28
Q

Water and cement

A

paste

29
Q

Aggregates

A

Sand and gravel

30
Q

Percentage of cement in a concrete mix?

A

10%-15%

31
Q

The process in which cement and water harden and bind the aggregates

A

hydration

32
Q

This process keeps hydration to occur. Since hydration happens only if water is available and the concrete’s temperature stays within a suitable range.

A

Curing

33
Q

ASTM

A

American Society for Testing and Materials

Construction Materials and Testing (6 decks)

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