No Boundaries
Transportation Maintenance Innovation
Colorado DOT hosted No Boundaries’ spring 2019 meeting in Denver on May 14-16. No Boundaries members and invited guests discussed road maintenance innovations and shared best practices.
Presentations and roundtable discussions addressed asset management data collection; the role of maintenance in emergency management; public service requests; state and national pollinator programs; training and apprenticeship programs; employee recruitment and engagement; and process improvement.
No Boundaries has published a listing of selected papers related to maintenance from the 2019 Transportation Research Board Annual Meeting. The compendium includes paper titles, authors, paper numbers, and links to the full-text documents. Note: TRB requires a login to access full papers. If you are having trouble accessing the papers, check with your DOT or other transportation library.
Download the compendium: 2019 TRB Annual Meeting: Papers Related to Maintenance.
No Boundaries has published a listing of selected papers related to maintenance from the 2019 Transportation Research Board Annual Meeting. The compendium includes paper titles, authors, paper numbers, and links to the full-text documents.
Concrete transportation infrastructure is susceptible to constant deterioration and thus requires constant attention and maintenance. According to research conducted for the Transportation Consortium of South-Central States, the dense microstructure and damage-tolerant characteristics of ultra-high-performance fiber-reinforced concrete repairs can significantly reduce the need for subsequent repair, rehabilitation and maintenance work.
Read the research report: Use of Ultra-High-Performance Fiber-Reinforced (UHP-FRC) for Fast and Sustainable Repair of Pavements, December 2018.
Quick and inexpensive chip seals as a pavement maintenance surface are widely used. Researchers for Missouri DOT tested the use of crumb rubber from recycled tires as portions of chip seal aggregate. Results showed “remarkable performance” in aggregate retention, and after one year of use, the sample chip seal sections outperformed trap rock chip seal in all areas examined.
Read the research report: Field Implementation of Rubberized Chip Seal, December 2018
A new study from Minnesota DOT investigated how concrete grinding residue (CGR) impacted physical and chemical properties and plant growth. Researchers found that areas receiving CGR applications in the past did not negatively affect soil quality and plant growth.
Read the research report: Concrete Grinding Residue: Its Effect on Roadside Vegetation and Soil Properties, January 2019