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CMEC ACI WORKBOOK > ASTM C 143 - SLUMP OF CONCRETE > Flashcards

ASTM C 143 - SLUMP OF CONCRETE Flashcards

1
Q

1 __ in.?

What is the maximum allowable aggregate size for slump testing?

A

1 1/2 inches

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2
Q

Same as maximum allowable aggregate size

What size sieve do you use for slump testing?

A

1 1/2 inch sieve

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3
Q

Non-Plastic AND Non-__?

What TWO types of concrete is slump testing not applicable for?

A

1) Non-Plastic
2) Non-Cohesive

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4
Q

Related to the Displaced Center

Why can non-plastic and non-cohesive concrete NOT BE USED for slump testing?

A

The displaced center IS INDISTINGUISHABLE after the cone is pulled

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5
Q

__ in +- 1/16 inches

What is the diameter of the Tamping Rod when testing for slump?

A

5/8 in +- 1/16 inches

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6
Q

__ inches

How much longer then the depth of the mold must the tamping rod be when testing for slump?

A

4 inches

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7
Q

NOT the max of 24 inches

What is the TYPICAL SIZE of a slump tamping rod?

A

16 Inches

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8
Q

Not the minimum/typical length of 16 inches

What is the MAXIMUM size of a tamping rod when testing for slump?

A

24 inches

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9
Q

In Inches

What is the MINIMUM length your measuring device for your slump must be?

A

Measure a MINIMUM of 12 inches

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10
Q

To the nearest __ in?

What do you round your slump measurements too?

A

Nearest 1/4 inch

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11
Q

What is the width IN INCHES of the TOP of the slump cone?

A

4 inches

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12
Q

What is the width of the BOTTOM of the slump cone – IN INCHES?

A

8 inches wide

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13
Q

2 __ inches?

How much do you fill the slump cone on the FIRST LIFT – IN INCHES?

A

2 5/8 inches

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14
Q

6 __ inches

How high do you feel the slump cone on the SECOND lift – IN INCHES?

A

6 1/8 Inches

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15
Q

How tall is the FINAL lift (third) of the slump cone – IN INCHES?

A

12 inches

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16
Q

How high – IN INCHES – must you raise up the slump cone when measuring the slump?

A

12 inches

17
Q

__ seconds +- 2 seconds

How long do you have to raise the slump cone to the height of 12 inches?

A

5 seconds

+- 2 seconds

18
Q

What is the definition of SHEARING in relation to slump cones?

A

A situation where you have lost sight of the original displaced center

19
Q

__ 1/2 minutes

What is the time limit for COMPLETION of the slump test?

A

2 - 1/2 minutes

20
Q

When does the slump cone test BEGIN and END?

A

BEGINS: Filling Begins

ENDS: When the cone is pulled

CMEC ACI WORKBOOK (11 decks)

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