Minor Road Damage Repair
Credit: 3 PDH or CE Hours
Course Fee: $45.00
Jointed concrete pavements are designed and constructed to provide long periods of service to the traveling public. In the harsh climate of Minnesota, older generation concrete mix designs, like those specified by MnDOT in the early 1990s, have demonstrated a trend where significant joint distress begins to appear on the surface of the pavement at approximately 17 to 20 years of age. The original concrete pavement test sections at the MnROAD facility, constructed in 1993, utilized older generation concrete mix designs. Following the general trend, by 2011 several of the original concrete pavement test sections that remained in service began to exhibit materials related distress along the joints. To keep the test sections in service and safe for the traveling public, partial-depth joint repairs were performed.
The materials used in partial-depth concrete repairs are constantly being tested and improved, such that the repairs last longer and can be placed and opened to traffic more quickly. The need for partial-depth concrete repairs at MnROAD provided a good opportunity to evaluate both existing and new types of patching materials. This course describes the 3-year performance of 93 patches with 22 different materials.
Franco F. Davati, P.E.
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Certificate of completion of the course
This course comes with a multiple-choice quiz. You can view the quiz and take the quiz if you are logged in your account. You can take the quiz for this online PDH course as many times until passed. The passing grade is 70% and above. After you pass the quiz simply follow the page, to pay for the course and print your certificate instantly. A copy of the certificate and receipt for this course will always be in your account.
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