A5079137906- Asphalt Pavement Performance Evaluation
- Infrastructure Maintenance and Monitoring
- Geotechnical Engineering and Underground Structures
- Recycling and Waste Management Techniques
- Hydraulic and Pneumatic Systems
- Smart Materials for Construction
- Material Properties and Failure Mechanisms
- Coal Combustion and Slurry Processing
- Transport Systems and Technology
Genex Systems (United States)
2024
Turner-Fairbank Highway Research Center
2021-2024
Bradley University
2016
In the asphalt materials community, most critical research need is centered around a paradigm shift in mixture design from volumetric process of previous 20-plus years to an optimization procedure based on laboratory-measured mechanical properties that should lead increase long-term pavement performance. This study focused advancing state understanding with respect value intermediate temperature cracking tests, which may be included balanced mix design. The are plant-mixed,...
Virgin aggregate is heated and dried in a drum dryer uses this mass to heat dry reclaimed asphalt pavement (RAP) and/or recycled shingles (RAS) materials mixer before blending with virgin binder. However, often the temperature inside unknown since many dryers do not have temperature-measuring unit but has. Up end, thermodynamics transfer principles are applied predict temperatures necessary RAP/RAS varying moisture content for various hot-mix (HMA) mix proportions. Among results, it found...
The asphalt community is focused on the paradigm shift in mixture design from volumetrics to an optimization procedure based performance tests called balanced (BMD). Laboratory are being assessed for their relationship binder properties and field performance. However, existing BMD practice does not account long-term oven aging (LTOA). This gap limits appropriateness of thresholds potential improving pavement Federal Highway Administration’s Asphalt Materials Research Program has launched a...
This study examined rheological and failure-based approaches for the optimization of two bio-based petroleum-based recycling agents (RAs). The results showed that optimizing RAs based on performance grade (PG) approach did not fully achieve failure characteristics target asphalt binder. was observed both a RA. binder quality test (ABQT) Glover–Rowe (G-R) potential as surrogate methods estimating optimum dosage RAs, whereas double-edge notched tension (DENT) provided more cost-effective...
With the advancement of Balanced Mixture Design (BMD), laboratory performance tests for asphalt materials are being assessed their relation to cracking in field. However, most BMD applications do not account long-term aging. This gap limits appropriateness thresholds and potential improve pavement as more amounts additives reclaimed available can behave drastically different fashions between early, intermediate, late stages service. In this study, five mixtures with documented field from...
As balanced mixture designs move forward, obtaining index properties quickly will become critical to routine application. This paper details a study into streamlining performance tests so that users may make decisions on as-designed and as-built material in shorter period. is unique asphalt materials research through its use of the Scrum methodology. form Agile project management technique often used software development manage complex projects. process can also address intricacies applied...