For agency professional engineers
The former head of pavement materials at the country's largest state DOT published research findings that identified pavements with HA5 High Density Mineral Bond installed had a 67% delay in the age-hardening of the asphalt.
This detailed research report explores the outcomes of reducing age-hardening:
- Keeping asphalt flexible
- Prolonging the useful life of the pavement
- Reduces cracking resulting from pavements becoming brittle
- Lower pavement lifecycle costs, saving taxpayer dollars