testing concrete linear traverse air void testing

     Jaber Engineering Consulting

Testing concrete in linear traverse

Jaber Engineering Consulting,

Inc.

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St. Mary Medical Center Parking Ramp

Duluth Ready Mix Concrete "DRM" was selected to supply St. Mary Medical Center Parking Ramp with high performance durable concrete for a long term durability of the parking ramp. To meet this project challenge DRM hired Jaber Engineering Consulting, Inc., to design the concrete mixtures and perform the pre-construction testing and trial batches for this durable concrete.

JEC performed material engineering design and performed the following

  • Design the concrete mixtures based on ACI guidelines and the performance history of the concrete ready mix plant.
  • Perform field observation, concrete testing and field quality control.
  • Provide a summary report of the trial batches and test results.
  • Prepare a final report for approval by the owners representative.

JEC designed six concrete mixtures containing the mineral admixture Silica Fume (to improve durability and reduce permeability and absorption) and Calcium Nitrate-based Corrosion Inhibitor DCI to inhibit reinforcing bar corrosion in the concrete.

The concrete mixtures had compressive strengths between 6,000 to 8,000 psi and water cement ratio ranging from 0.34 to 0.38.

Extensive testing was performed to confirm the high performance properties of the concrete mixtures. This included air void analysis, chloride ion content, chloride permeability, nitrate testing, compressive strength and aggregate testing.


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