Pavement Maintenance Policies & Types

Play an AI-generated podcast conversation about this lesson

What is the primary purpose of pavement maintenance?

To reduce the construction cost of new pavements
To correct deficiencies caused by distresses and protect the pavement from further damage (correct)
To increase the traffic speed limits
To improve the aesthetic appeal of roads

What is the result of delaying corrective maintenance?

Reduced maintenance costs
Rapid deterioration and failure (correct)
Improved road safety
Increased traffic flow

Why is pavement maintenance vital for a nation's economy?

It increases traffic congestion
It improves road safety
It enhances the overall economy of a nation (correct)
It reduces construction costs

What is the objective of preventive maintenance?

To protect the pavement from further deterioration and reduce the need for corrective maintenance (D) Signup and view all the answers

What type of maintenance is performed after a deficiency occurs in the pavement?

Corrective maintenance (A) Signup and view all the answers

What is the outcome of correcting pavement distresses?

Restoration of safety requirements and adequate riding (B) Signup and view all the answers

What is the primary purpose of preventive maintenance for pavements?

To reduce the need for corrective maintenance or rehabilitation (D) Signup and view all the answers

What is the main difference between rehabilitation and reconstruction?

Rehabilitation involves repairing damaged layers, while reconstruction involves replacing pavement layers (C) Signup and view all the answers

What is the primary function of a performance indicator in pavement performance evaluation?

To evaluate the functional performance of pavements (C) Signup and view all the answers

What is the primary factor affecting the deterioration rate of pavement performance?

Time (B) Signup and view all the answers

What is the primary objective of performance constraints in pavement performance evaluation?

To maintain minimum performance levels (B) Signup and view all the answers

What is the result of applying preventive maintenance to pavements?

An increase in pavement life (D) Signup and view all the answers

What is the minimum width of cracks that are generally too wide to be sealed or filled?

25 mm (A) Signup and view all the answers

What type of crack has horizontal or vertical movements of 2.5 mm or more?

Working crack (A) Signup and view all the answers

What is the primary cause of vertical movement in cracks?

Deflections (C) Signup and view all the answers

What property must materials used for crack treatment have?

Flexibility and ability to absorb many cycles of movement (D) Signup and view all the answers

What happens to cracks at low temperatures?

They widen and open (D) Signup and view all the answers

What happens to the adhesive strength of asphalt materials at low temperatures?

It decreases (D) Signup and view all the answers

What is the primary purpose of the trigger value in pavement maintenance?

To determine the treatment application times (C) Signup and view all the answers

What is the effect of more powerful maintenance on pavement performance?

A larger jump in performance after treatment application (B) Signup and view all the answers

What is the purpose of crack sealing and filling in pavement maintenance?

To prevent moisture from infiltrating the pavement structure (C) Signup and view all the answers

Why are cracks less than 3 mm wide not sealed or filled?

They are too narrow to be sealed or filled (B) Signup and view all the answers

What is the typical width of cracks that can be sealed or filled?

Less than 3/4 inch (D) Signup and view all the answers

What is the difference between crack sealing and crack filling?

Sealing involves creating a reservoir, while filling involves filling the crack with material (C) Signup and view all the answers

What is the primary purpose of routing or cutting the crack in crack treatment procedure?

To provide a reservoir for the crack sealant and prevent weak bonding (D) Signup and view all the answers

Why is it important to clean and dry the crack before sealing?

To prevent the sealant from adhering to the dirt particles instead of the crack sides (B) Signup and view all the answers

What is the advantage of using hot air blasting over air blasting in crack preparation?

It is better at drying the crack (D) Signup and view all the answers

What type of cracks typically do not require cutting or routing in the crack treatment procedure?

Non-working cracks that are not expected to grow further (C) Signup and view all the answers

What is the limitation of wire brushing in crack preparation?

It is not effective at removing moisture from the crack (C) Signup and view all the answers