(2021) Research Solutions - Iowa's updated Asphalt Pavement Standards improve Road Performance TR-742. Transportation, Department of
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Iowa DOT Research Solutions brief - TR-742 - Gyratory Mix Design.pdf File Size:400kB |
Abstract
Research completed in 2016 helped Iowa upgrade its asphalt pavement mix designs and construction procedures, but careful analysis was needed to verify that the mixes being produced in the field were meeting performance expectations. A follow-up study comparing pavement samples created with the old and new specifications drew on a variety of performance tests to confirm that the new specifications yielded better-performing pavements. The results indicate that new pavements constructed in Iowa wil be more resistant to failures such as rutting and cracking over time
| Item Type: | Departmental Report |
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| Note: | Please also see Final Report and Tech Brief: https://publications.iowa.gov/39495 |
| Keywords: | air voids—AASHTOWare Pavement ME Design—asphalt pavement design—binders—fatigue cracking—gyratory compaction cycles—low-temperature cracking—moisture susceptibility—new Ndesign validation—pavement performance comparisons—rutting |
| Subjects: | Transportation > Pavements Transportation > Materials Transportation > Research Transportation > Design and Construction |
| ID Code: | 41941 |
| Deposited By: | Iowa DOT Research |
| Deposited On: | 15 Nov 2022 21:08 |
| Last Modified: | 15 Nov 2022 21:08 |
| URI: | https://publications.iowa.gov/id/eprint/41941 |