Superpave Level I Mix Design at the Local Government Level

Principal Investigator(s):

Andrew Drescher, Former Professor, Civil, Environmental and Geo-Engineering

Co-Investigators:

  • Bruce Horan, Former University Researcher, Civil, Environmental and Geo-Engineering
  • David Newcomb, Former University Researcher, Civil, Environmental and Geo-Engineering

Project summary:

The objective of this research is to determine the extent to which the Superpave Level I mix design procedure can be used on lo, volume pavements using locally available aggregates in Minnesota Four coarse aggregate types will be studied: 1. Crushed granite. Crushed quartzite, 3. Crushed limestone, and 4. Partially crushed river gravel. These will be combined with a partially crushed fine aggregate to produce both fine (above the restricted zone) and coarse (below the restricted zone) gradations. Mixtures containing unmodified asphalt binder will be compared to those with a polymer modified binder. The mixtures will be tested for moisture sensitivity rutting susceptibility, and cold temperature behavior.

Project details:

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