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Electro-Chemical Dewatering System
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Structural Engineer, July 2009
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For building owners and managers, one of the biggest issues is a damp or moldy basement area resulting from water intrusion through cracked concrete slabs and foundation walls. This is evidenced by the fact that structural engineers are often asked by architects and building owners about the cost to design crack-free concrete structures. Those with experience in concrete repair have found that structural and concrete mix designs must be coupled with exceptional field curing and placement practices in order to achieve “crack-free” or “watertight” concrete.
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Not so ‘shocking' results
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Structural Engineer, March 2009
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Success with impressed cathodic protection for a National Historic Landmark.
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Hyperbolic Cooling Tower Column and Lintel Beam Protection
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The Construction Specifier, September 2008
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Used in large power generation plants, hyperbolic natural draft cooling towers are extremely susceptible to corrosion-induced deterioration. Due to the unique water cooling process, practically all surfaces in the basin are subject to “immersion” conditions. The columns and lintels are in a “splash zone” environment subject to intermittent wet and dry conditions. Construction of new hyperbolic natural draft cooling towers, however, represents a large capital investment so maintaining existing towers is crucial.
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Efficient Floor Framing Systems: Preliminary Sizing of Post-Tensioned Floors (PDF)
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Structural Engineer, 10/01/2008
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When designing for thinner floors, using post-tensioning to resist loads and deflections provides a more optimal solution than conventionally reinforced floors. This fact is primarily due to the load-balancing effect of the draped post-tensioned tendons.
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Floor Framing System Selection : Applications of Post-Tensioning in Buildings
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Structural Engineer, August 2008
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Designers have a multitude of choices in building design, especially in the selection of a flooring framing system. Post-tensioned flooring systems offer a great deal of flexibility, and when properly designed, can significantly impact the cost of materials and speed of construction.
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Electrochemical Treatments on Historic Steel Frame Buildings
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The American Institute of Architects, March 2008
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Corrosion is present in historic buildings which utilize iron or steel in construction and can cause a variety of failures leading to masonry damage, the loss of original fabric, and even death. Traditional repair techniques can temporarily slow the corrosion process but do not provide a long term solution for corrosion.
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Blast Mitigation of Concrete Structures
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The Construction Specifier, March 2006
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Although recent concerns about terrorism have generated a wider knowledge of the consequences of bombing, the majority of public, federal, and corporate buildings still has minimal blast-resistance capacities and may not be able to survive the destructive effects of such attacks.
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Prescribing a Bonded Post-tensioning System
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Structural Engineer, July 2005
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Bonded post-tensioning system minimizes life-cycle maintenance costs.
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Technology Imparts Blast Resistance Wire-to-Wire
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Concrete Products, September, 2004
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A proprietary innovation in blast-resistance is based on a familiar technology. Steel-belted radial tires incorporate the same wire metallurgy as Hardwire, a family of high-tensile-steel reinforcement products said by the manufacturer to have been successfully implemented as blast-resistance and blast-mitigation retrofit solutions on a variety of structures and infrastructure components.
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