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Transportation CE 150 > Pavement Distresses > Flashcards

Pavement Distresses Flashcards

1
Q

Evaluation methods of pavements distresses

A

Visual

Stand alone equipment

Multipurpose Automated Vehicles

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2
Q

Good evaluation includes:

A

Type of distress

Severity

Extension

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3
Q

Types of Automatic Evaluation Equipment (5)

A

Cameras

Video

Digital Video

Laser

Ultrasound

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4
Q

Distress severity stages

A

Early Stages (low)

Well manifested (moderate)

Can’t get much worse (high)

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5
Q

Distress Quantity

A

Linear measurements

Areal measurements

Number of occurances

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6
Q

Fatigue cracking

A

Alligator pattern

Caused by weather

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7
Q

Transverse cracking

A

Crack perpendicular to edges of road

Caused by poor drainage

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8
Q

Low temperature cracking

A

Caused by expansion and contraction

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9
Q

Reflection cracking

A

Crack underneath road is reflected on top layer

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10
Q

Longitudinal cracking

A

Longways down road

Caused by layers paved on two different days

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11
Q

Pothole

A

Caused by poor drainage and rehabilitation

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12
Q

Patching

A

Can be eroded more

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13
Q

Rutting

A

Caused by car wheels

Can be in subgrade or base

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14
Q

Raveling

A

Spreading of aggregate

Caused by lack of cohesion and improper construction

Aggregate needs to be uniformly spaced

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15
Q

Bleeding

A

Binding layer bleeds to the surface (oil, slick)

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16
Q

Water bleeding and pumping

A

Water and sand make way to surface and erode

17
Q

Frost Heave damage

A

Freezing damage

Need proper drainage

18
Q

Edge breaking

A

Erosion on side of roads

Improper drainage

19
Q

Types of distresses (13)

A 
Fatigue cracking
Transverse cracking
Low temp cracking
Reflection cracking
Longitudinal cracking
Pothole
Patching
Rutting
Raveling
Bleeding
Water bleeding & pumping
Frost heave damage
Edge breaking

Transportation CE 150 (6 decks)

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