Putting Research into Practice: Improving Subgrade Test Rolling

Status:  Complete
Report Date:  06/27/2011

Summary:

Researchers developed a new test rolling system and an associated construction test specification that MnDOT can use to approve compacted subgrades on construction projects. This system can be used on a wider variety of subgrade types and depths, and is safer than the previous system, allowing for a more flexible testing program overall.

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