Beltrami and Hubbard counties planned pavement rehabilitation on a shared road, presenting a unique opportunity to directly compare two stabilizers: engineered emulsion and Base One, a proprietary mix. While there were some variations in performance and cost, both met design values for pavement strength.
Continue reading Comparing Additives Used in Stabilized Full-Depth ReclamationTag Archives: pavement
Putting Research Into Practice: Fog Sealing Chip Sealed Roads Can Improve Performance
Applying a protective surface—or chip seal—to existing asphalt on relatively low-traffic roads is a pavement preservation method used by many transportation agencies. Yet despite its popularity, chip seals can cause various issues. Some agencies have found that applying a fog seal following a chip seal is a cost-effective strategy for improving asphalt performance and public satisfaction.
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Research Pays Off Webinar Series: Intelligent Compaction Technology as a Service and for Compliance
The National Road Research Alliance (NRRA) is hosting “Intelligent Compaction Technology as a Service and for Compliance – How ICT Research has led to the Removal of Technicians from Construction Sites in the UK” on July 19 at 10 a.m. CST, presented by Ruairi Charlesworth of Highway Data Systems.
Continue reading Research Pays Off Webinar Series: Intelligent Compaction Technology as a Service and for ComplianceResearch Pays Off Webinar Series: Intelligent Compaction Technology as a Service and for Compliance
The National Road Research Alliance (NRRA) is hosting “Intelligent Compaction Technology as a Service and for Compliance – How ICT Research has led to the Removal of Technicians from Construction Sites in the UK” on March 15 at 10 a.m. CST, presented by Ruairi Charlesworth of Highway Data Systems.
Continue reading Research Pays Off Webinar Series: Intelligent Compaction Technology as a Service and for ComplianceResearch Pays Off Webinar Series: Performance Benefits of Fiber-Reinforced Thin Concrete Pavement and Overlays
The National Road Research Alliance (NRRA) is hosting “Performance Benefits of Fiber-Reinforced Thin Concrete Pavement and Overlays” on September 21 at 10 a.m. CST, presented by Manik Barman, University of Minnesota Duluth.
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Evaluating Pavement Thickness With 3D Ground-Penetrating Radar
Building on previous MnDOT-sponsored work, researchers have developed a nondestructive method of assessing pavement thickness using 3D ground-penetrating radar (GPR). A vehicle equipped with an array of transmitting and receiving antenna pairs travels at traffic speed collecting full-width GPR data for analysis, minimizing the amount of pavement coring required.
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Evaluating Cracking Resistance Test Methods for Asphalt Pavements
A new method of testing low-temperature cracking in asphalt pavement shows promise for design, quality control and quality assurance. Test results produced by the new method, which is faster and less expensive than the previous method, match well with results from the older method.
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New Project: Have Minnesota’s Warmer Winters Increased the Number of Freeze Thaw Cycles?
Minnesota is experiencing warmer winters and an increase in freeze-thaw events may negatively impact pavement systems. However, the impacts of these recent climate changes on freeze-thaw cycles have not been well studied.
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Pavement Preservation Techniques for Local Agencies
Cities and counties need affordable pavement preservation treatments, but preservation strategies are often geared towards higher-volume roads. The Minnesota Local Road Research Board has developed new guidance on five lower-cost treatments that is more applicable to local agencies and can be used to preserve pavements based on the type and severity of pavement distress.
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High-Density Asphalt Pavement Mixtures Viable with local Aggregates
Researchers developed sophisticated models for high-density asphalt pavement mixtures. After calibrating the model to experimental data available from 5 percent air void asphalt mixtures, the research team conducted tests on three Minnesota mixtures to further refine the model. A Phase II study will develop multiple high-density mix designs for Minnesota applications.
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