Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Geotechnical > Consistency Of Soil > Flashcards

Consistency Of Soil Flashcards

1
Q

Rupture resistance is best described using

A

Stickiness and Plasticity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Describe the strength with which soil materials are held together

A

Consistency of soil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The ability of soil materials to change shape(but not volume), continuous under the influence of a constant pressure and to retain the impressed shape when the pressure is removed

A

Plasticity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Soil begins to stick to fingers but comes off one or the other cleanly; does not stretch when the fingers are opened

A

Slighty sticky

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The ability of soil materials to adhere to other objects

A

Stickiness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Field test for stickiness

A

Non sticky
Slightly sticky
Sticky
Very sticky

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The field measure of the ability of the soil to withstand pressure as applied using the thumb and forefinger

A

Rupture resistance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Separates inorganic clays from inorganic slits

A

A-line

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

When describing rupture resistance, we attempt to describe it using

A

Moist, Dry, and wet consistency

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

The resistance of soils to deformation and rupture

A

Consistency of soil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Water is added to soil to increase water content

A

Wet consistency

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Soil sticks to both thumb and forefinger and tends to stretch a little and pull apart rather than pulling free from your finger

A

Sticky

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Shrinkage limit, Plastic limit, and Liquid Limit are also known as

A

Atterberg limits

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Atterberg limits were oberved by

A

Albert Mauritz Atterberg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Consistency can be described as

A

Dry, moist, and wet consistency

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Atterberg limits were refined by

A

Arthur Casagrande

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Soil sticks firmly to both thumb and forefinger and stretches when the fingers are opened

A

Very Sticky

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Liquid Index ( LI)

A

LI = (w- PL) / ( LL-PL)

= (w-PL) / PI

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

The degree to which a reworked soil can be permanently deformed without rupturing

A

Plasticity of solids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Can undergo deformation without cracking

A

Plastic soil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

No soil or practically no soil sticks to fingers

A

Non-sticky

23
Q

Describes as the response of soil to physical change through (increasing) moisture content

A

Plasticity

24
Q

Are basically the limits of water content used to define soil behavoir

A

Atterberg limits

25
Q

Moisture content at which soil begins to behave as liquid material and begins to flow

A

Liquid limit

26
Q

Moisture content at which soil begins to behave as plastic material

A

Plastic limit

27
Q

Moisture content at which no futher volume change occurs further reduction in moisture content

A

Shrinkage limit

28
Q

What lab apparatus is used to test liquid limit

A

Casagrande cup

29
Q

After how many blows to reach the liquid limit

A

25

30
Q

Specific Gravity

A

Gs = 1 / [( 1/SR) - (SL/100)]

31
Q

The slope of the flow rate

A

Flow index

32
Q

Flow index is equal to

A

FI = (w1 - w2) / log (N2/N1)

33
Q

Another method to obtain the liquid limit

A

Fall cone test method

34
Q

Is the moisture content at which the soil, when rolled into threads of 3.2mm (1/8 inch),crumbles

A

Plastic limit

35
Q

PI =

A

PI = LL - PL

36
Q

Indicates how much volume change is possible as changes above water content above the shrinkage limit occur

A

Shrinkage ratio

37
Q

Is the moisture content of which the volume change of the soil mass ceases( or the volume no longer goes smaller)

A

Shrinkage limit

39
Q

Is the upper limit of the relationship of the PI to the LL for any soil found so far

A

U-line

40
Q

Is an index for identifying the swelling potential of clay soils

A 
A = PI / u 
u = percent finer
41
Q

Formula for change in moisture content

A

Change in moisture = density ( V1- V2) / m2

41
Q

Shrinkage limit formula

A

SL = [(m1 -m2) / m2] -[(V1-V2)/ m2 ] density

42
Q

Is themeasure of plasticity of the soil

A

Plasticity index

43
Q

Provides the relative consistency of a cohesive soil with respect to the atterberg limits

A

Liquid Index ( LI )

43
Q

Shrinkage ratio ( SR)

A

SR = density of dry / density of water

44
Q

Commonly used to indicate the in situ denseness and loosenessof soil

A

Relative Density (Sr)

45
Q

Relative Density is equal to

A

Dr = (emax -e) / (emax - emin)

46
Q

Very loose, Dr is equal to

A

0-15

47
Q

Loose, Dr is equal to

A

15-50

48
Q

Medium, Dr is equal to

A

50-70

49
Q

Dense, Dr is equal to

A

70-85

50
Q

Very Dense, Dr is equal to

A

85-100

Geotechnical (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions