NC² Research Needs Analysis
Surveys are conducted every 1-2 years with representatives from all NC² states to determine their needs for information or research related to concrete pavements and bridge decks. The results of this survey were compiled into a summary table available here.
Below are the topics that were listed most often:
| Research Need | # States |
|---|---|
| Fly ash alternatives | 16 |
| Bridge deck cracking / curing improvements | 9 |
| Load transfer | 5 |
| Performance engineered mixtures (PEM) | 5 |
| Surface wear from chain / studded tires | 4 |
| Type IL cement compatibility | 4 |
| PEM test procedures (Resistivity) | 4 |
| Smoothness | 4 |
Topics being addressed via ongoing work
- Performance-based specifications
- Alternatives to fly ash
- Improving smoothness
- Precast pavements
- Recycled concrete
- Mixtures for durability and workability
- Quality systems including test methods