NC² States’ Q&A Listserv
The National Concrete Consortium (NC²) States’ Q&A Listserv is used by TTCC pooled fund member states to poll other member states about concrete paving and bridge deck issues.
Polling states then share with NC² question-and-answer spreadsheets/pdfs downloadable by clicking the appropriate topic link in the tables below that respectively cover questions on distress, specifications, materials, design, foundations, construction, testing, preservation, and rehabilitation.
Distress
| Topic | State | Date |
|---|---|---|
| SD | 04/07/2021 | |
| PCC Buckling Trends | MN | 07/07/2021 |
Specifications
| Topic | State | Date |
|---|---|---|
| AASHTO T358-15 Resistivity Test | WV | 01/24/2022 |
| NE | 09/23/2020 | |
| Concrete Pavement on Full-Depth Reclamation (FDR) Material | MN | 09/22/2020 |
| Cold Weather Concrete | IL Tollway | 11/15/2019 |
| Bridge Deck Thin Latex Concrete Overlay | IL Tollway | 04/05/2019 |
| MN | 11/07/2014 | |
| MN | 04/22/2015 | |
| OH | 06/05/2015 | |
| MN | 05/29/2015 | |
| ID | 06/17/2015 | |
| PA | 07/13/2015 | |
| PA | 10/05/2015 | |
| OH | 10/08/2015 | |
| NE | 12/11/2015 | |
| PA | 01/28/2016 | |
| NE | 02/19/2016 | |
| 10/01/2016 | ||
| MI | 05/17/2017 | |
| MI | 10/30/2017 | |
| NE | 03/29/2018 | |
| Lab Certification for Testing Contractor QC Cylinders | WV | 02/04/2020 |
Materials
| Topic | State | Date |
|---|---|---|
| Type 1L Portland Limestone Cement | OH | 08/20/2021 |
| Slag Cement | OH | 09/10/2020 |
| Recycled Concrete Aggregate (RCA) and Life-Cycle Cost Analysis (LCCA) | CO | 04/14/2020 |
| Aggregate Optimization | IN | 05/01/2019 |
| Decorative Concrete | OH | 03/19/2019 |
| Type IL Cement | WV | 03/01/2019 |
| IL | 10/03/2018 | |
| AL | 01/10/2018 | |
| IA | 07/19/2017 | |
| IA | 10/08/2015 | |
| AL | 06/29/2015 | |
| OH | 05/07/2015 | |
| MN | 10/10/2014 |
Design
| Topic | State | Date |
|---|---|---|
| Concrete Pavement Dowel Bar Reduction | NE | 09/03/2020 |
| O-Dowel and Other Dowel Bar Alternatives | GA | 05/06/2020 |
| Pavement Thickness Intervals | GA | 08/23/2019 |
| Number of Tied Lanes | MO | 12/13/2018 |
| MN | 09/21/2016 |
Foundations
| Topic | State | Date |
|---|---|---|
| MO | 01/05/2016 |
Construction
| Topic | State | Date |
|---|---|---|
| IA | 04/27/2020 | |
| Falsework Requirements | LA | 05/06/2019 |
| Use of HIPERPAV | OH | 08/30/2019 |
| Skid Resistance | PA | 05/18/2015 |
| Air When Pumping | OH | 05/14/2015 |
| Form Removal | MN | 05/28/2014 |
| Mass Concrete | MN | 05/15/2014 |
| High-Performance Concrete (HPC) | MN | 05/15/2014 |
| Curing Bridge Decks | IN | 03/20/2015 |
| Rebar Splices | ID | 06/17/2015 |
| Mobile Mixer Calibrations | MO | 04/13/2018 |
| Lane Tie Pull-Out Testing | MI | 05/17/2017 |
| MN | 04/07/2015 | |
| NE | 05/28/2015 | |
| KS | 10/26/2015 | |
| IN | 02/11/2016 | |
| MI | 12/18/2017 |
Testing
| Topic | State | Date |
|---|---|---|
| Non-Destructive Technology Use and Tensile Bond Strength | IA | 12/06/2021 |
| Super Air Meter (SAM) and Type B air meter calibration | WI | 04/01/2020 |
| ASTM C1202: Rapid Chloride Permeability Testing (RCPT) | CAN | 10/01/2017 |
Preservation
| Topic | State | Date |
|---|---|---|
| Overlay Repair | MN | 06/12/2019 |
| NE | 02/01/2017 |
Rehabilitation
| Topic | State | Date |
|---|---|---|
| Friction Reduction after Diamond Grinding Concrete Pavement | WV | 10/16/2020 |
| IL | 01/21/2016 |