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As the President and CEO of Engineer Your Success LLC, I combine my extensive engineering…

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  • Do Not Start With SMART Goals

    Do Not Start With SMART Goals

    The time of year that many people start talking about New Year's resolutions and setting goals for next year is right…

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Publications

  • In-Place Resistivity of Bridge Deck Concrete Mixtures

    ACI Materials, Volume 106, No 2 March-April 2009, p 114

    This study investigated the in-place permeation properties of six low-permeability concrete bridge deck mixtures used in the Commonwealth of Virginia. Laboratory specimens were tested at 7, 28, and 91 days. Statistical analyses were performed to assess the significance of the relationships for electrical charge passed in coulombs and initial measured electrical current in amps, slab and cylinder electrical resistivity, and slab electrical resistivity and charge passed. A well-defined…

    This study investigated the in-place permeation properties of six low-permeability concrete bridge deck mixtures used in the Commonwealth of Virginia. Laboratory specimens were tested at 7, 28, and 91 days. Statistical analyses were performed to assess the significance of the relationships for electrical charge passed in coulombs and initial measured electrical current in amps, slab and cylinder electrical resistivity, and slab electrical resistivity and charge passed. A well-defined relationship was observed between electrical charge passed and initial current, resistivity of the concrete slabs and cylinders, and the charge passed and the slab resistivity. Prediction bands, at the 5% significance level, were constructed to give an estimate of an expected charged-passed value for a new observation of in-place resistivity. Field data were used to validate laboratory-established models for charge passed and electrical resistivity. Laboratory-established models were able to predict 30 to 50% of the field data.

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  • Evaluation of a Penetrating Corrosion Inhibitor System

    9th AASHTO/TRB Maintenance Management Conference, Juneau Alaska, July 16-20, 2000

    A total of 16 reinforced slabs were cast with admixed chloride contents of 0.0, 0.35, 0.71, 1.4, 2.8, and 5.7 kg Cl/cu m of concrete. The slabs contained 5 isolated steel reinforcing bars with a 50 mm cover depth and were 1181 x 1067 x 216 mm. The slabs were stored at an outdoor exposure site in Blacksburg, Virginia for 7 years before being treated with an alcohol-amine corrosion inhibitor. Treatments were 3 applications at a rate of 2.46 sq m/liter over the entire surface area or over a center…

    A total of 16 reinforced slabs were cast with admixed chloride contents of 0.0, 0.35, 0.71, 1.4, 2.8, and 5.7 kg Cl/cu m of concrete. The slabs contained 5 isolated steel reinforcing bars with a 50 mm cover depth and were 1181 x 1067 x 216 mm. The slabs were stored at an outdoor exposure site in Blacksburg, Virginia for 7 years before being treated with an alcohol-amine corrosion inhibitor. Treatments were 3 applications at a rate of 2.46 sq m/liter over the entire surface area or over a center strip which was perpendicular to the bar direction. The concrete mixture had a water cement ratio of 0.45 and a 28 day compressive strength of 34.5 MPa. Corrosion assessment measurements before treatment included acid and water soluble chloride contents and corrosion potentials and rates. Corrosion potentials and rates were monitored for 1 year after treatment, and about 9 months after treatment the depth of inhibitor penetration was measured qualitatively (color indicator test) and quantitatively (ppm). Results indicated that the inhibitor penetrated to the bar depth but there was no significant difference in the corrosion potentials and rates between the treated and untreated slabs or areas.

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Honors & Awards

  • Outstanding Young Alumni Award

    Via Department of Civil and Environmental Engineering (CEE), Virginia Tech

    In 1998, the Via Department of Civil and Environmental Engineering (CEE) and the CEE Alumni Board formally initiated the CEE Alumni Achievement Awards Program as a means of honoring both younger alumni who have made an impact of practice.

    Dr. James Bryant, P.E. received an outstanding Young Alumni Award for his contribution to the practical application of research both in the public and private sector.

    http://www.cee.vt.edu/alumni/alumni_awards/alumni_awards.html

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