MnROAD Test Sections

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(@lzanko)

MnROAD Test Sections

Susceptibility of HMA Pavements at MnROAD to Mobile Microwave Heating: A Comparative Field Study

Aggregates comprise about 95% of hot mix asphalt (HMA), by weight. Some aggregates are more susceptible to microwave heating than others, based on their component minerals. For example, Mesabi aggregate rock generated by Minnesota's taconite industry contains magnetite, which is an excellent microwave absorber. Conversely, other aggregate rock types like granite do not absorb microwave energy as well because they contain ...more »

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(@aggregate)

MnROAD Test Sections

Test Design Thickness of the Soil Surcharge Load Required over Compacted TDA to Safely Construct a Quality High-Volume Roadway

Phase-II would be done if test sections are needed as noted below. This would require funding for construction and monitoring. First Tire would like to propose a two test section located on the MnROAD driveway while comparing surcharge load thicknesses of 18-24 inches compared to 48 inches or more over 3 feet of compacted TDA. There are some varying experiences from different successful installations across the industry ...more »

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(@aggregate)

MnROAD Test Sections

Zero Run-off Roadways

This is a request for consideration for the use of TDA in replacement of large stone aggregate possibly at the MN Roads Facility. This aggregate replacement would be used in an underground stormwater infiltration system designed for roadways assisting with detaining-retaining road stormwater runoff. This test design would utilize TDA in a area under the driving surface or existing roadside ditches. The desired data ...more »

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