Addressing the increasing need for pavement materials coincides with an increasing supply of plastic waste. Incorporating recycled plastic into aggregate for transportation infrastructure is of growing interest. Testing plastic waste material in both asphalt and concrete pavement mixtures revealed promising results and the need to explore long-term performance and durability. Availability of good quality aggregate … Continue reading Testing Recycled Plastics in Asphalt and Concrete Paveme...| Crossroads
Treating early deterioration in concrete pavement can extend a road’s service life and defer costly replacement. An assessment of different strategies years later demonstrated that over time, asphalt overlays made the roadways smoother for travelers. Some roads built in Minnesota in the late 1980s and early 1990s have deteriorated at an accelerated rate as a … Continue reading Strategies for Addressing Deteriorated Concrete Roads→| Crossroads
The production and use of construction materials for transportation projects have varying impacts on the environment based on factors such as production process, transportation and material inputs. To mitigate negative outcomes, MnDOT sought to incorporate environmental impacts into the procurement process for concrete mixtures and concrete pavement. This project provided a framework for considering environmental … Continue reading Incorporating Sustainability into the Procurement Process→| Crossroads