• Better stress force distribution 
  – Weight distribution spread across the whole concrete surface vs. point concentration of loads in asphalt roads.
• Preserves rigidity / stiffness over time
• More resistance to surface deformation than asphalt
   

Pavement Failure:

• Not due to # of years
• Due to stress of vehicle traffic
• Water, oil and grease
   

Concrete’s rigidity spreads the load over a large area and keeps pressures on the subgrade low.

Present Value of Accumulated Cost Estimations per km of Construction (´000 USD)

Initial investment is only 10% higher in concrete pavement vs. asphalt; nevertheless it can result in cost savings as high as 50% over the course of 20 years

Cost Fluctuation

Inflation Rates since Jan 1960          Month-to-Month Change in PPI since Jan 1960

Flexible Pavement

Reduced frequency of maintenance activities Less road obstruction More road usage and traffic fluency

Rigid Pavement

Better road surface quality Reduced breaking distance Gas savings as high as 14% Constant driving speed

Concrete surfaces reflect 5 times more light than asphalt, reducing street public lighting energy consumption by as much as 37%

• Concrete pavement absorbs less heat than asphalt
• Urban temperature reduction as high as 15°C
• Benefits of temperature reduction
  - Increased driver’s comfort
  - Inferior energy consumption by air conditioning devices