| Sensor & Model Enabled Water Quality & Security Assessment System for Situational Awareness of Water Distribution Networks |
Jun 2010 |
55 pages |
| Authors:
Mark Ginsberg; Vicki VanBlaricum; Vincent F Hock; Eddy D Smith; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
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 | Extent And Magnitude Of The Problem: Potable Water Distribution System: 880,000 miles of pipe comprise the nation s drinking water distribution network [AWWA WATER\STATS2002]. A Department of Defense report estimates that corrosion related problems cost the Department of Defense $15 billion dollars/year. Typical Water Distribution Systems: Potential corrosion problems, Threat to Water Potability, Threat to Fire Suppression, Lack of system redundancy, Large area subtended by the system, Treatment chemicals and ... |
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| Facilities Corrosion Impacts: When Corrosion Wins, the Mission Ends |
10 Feb 2010 |
17 pages |
| Authors:
Vincent F Hock; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL
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| IMPACT OF CORROSION ON ARMY FACILITIES: Coating degradation on steel structures - roofing, storage tanks, bridges, etc. * Water and fuel distribution systems, storage tanks, and pumping systems * Water intrusion through concrete and masonry structures below grade * Corrosion of underground pipelines, pier structures, airfields and pavements * Corrosion of industrial heating and cooling systems. |
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| Development of a Predictive Corrosion Model Using Locality-Specific Corrosion Indices |
Aug 2009 |
90 pages |
| Authors:
Sean Morefield; Susan A Drozdz; Vincent F Hock; William H Abbott; David Paul; Jana L Jackson; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
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| This Office of the Secretary of Defense Corrosion Prevention and Control Program project developed a statistical model of atmospheric corrosion of selected metals. This model relates measured corrosion rates at test sites (mainly military bases) worldwide to critical environmental variables. These variables are (1) a measure of atmospheric chlorides, (2) rainfall, and (3) relative humidity values at several levels. The measured corrosion rates obtained at test sites over the period ... |
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| The Use of Vitreous Enamel Coatings to Improve Bonding and Reduce Corrosion in Concrete Reinforcing Steel |
Feb-2009 |
31 pages |
| Authors:
Sean W Morefield; Philip G Malone; Vincent F Hock; Orange S Marshall; Donna C Day; Weiss; Charles A Jr; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
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| Overview: * Corrosion of Reinforcing Steel in Concrete * Strategies to Prevent Corrosion * Alkali-resistant Vitreous Enamel Testing and Results * Ongoing Demonstration Work at CCAD * Summary |
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| Laboratory Testing of Electro-Osmotic Pulse Technology to Reduce and Maintain Low Moisture Content in Concrete |
Feb-2009 |
33 pages |
| Authors:
Vincent F Hock; Orange S Marshall; Brendan J Danielson; Katherine A Masko; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
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| Electro-Osmotic Pulse Technology stops water intrusion through concrete. Water can enter a structure via seepage or through joints and cracks. Electrodes are installed in the concrete and the adjacent soil. A small voltage (up to 30 VDC) is applied between the electrodes producing an electric field across the concrete. The electric field promotes cation, anion, and water molecule movement within the concrete; creates counterflow and associated pressure that opposes seepage; ... |
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| Acoustic Nondestructive Testing of Steel Reinforcing Members in Concrete |
Dec-2008 |
9 pages |
| Authors:
Michael K McInerney; Sean W Morefield; Vincent F Hock; John M Carlyle; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
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| Many concrete structures contain internal pre- and post-tensioned steel structural members that are subject to fracturing and corrosion. Corrosion of steel components can lead to loss of tension and consequent severe problems, such as cracking of the concrete or fracturing of the steel. This work addresses the problem of determining tension in embedded pre- and post-tensioned rods. The major problem with existing test techniques is that they use indirect and ... |
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| Application of Electrokinetic Nanoparticle Migration in the Production of Novel Concrete-Based Composites |
Dec 2008 |
6 pages |
| Authors:
Sean W Morefield; Vincent F Hock; Weiss; Charles A Jr; Philip G Malone; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
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| Electrophoresis has been widely used to build up complex composites by infiltrating particulate phases into porous ceramics and to facilitate putting uniform mineral coatings on metal for enameling. This technique uses a potential field to move charged particles that are suspended in a fluid phase into a porous medium. Fabrication generally involves a second step that fixes the layer of particles together and bonds them to the surrounding surfaces. When ... |
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| Electro-Optically Pumped Catalytic Coatings for Hydrolysis And Sensing |
Dec 2008 |
4 pages |
| Authors:
Mark D Ginsberg; Mark Shannon; Vincent F Hock; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL
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| Construction materials have, historically, not been capable of protecting users from toxic contaminants. For example, pipe materials sorb waterborne toxic contaminants, including chemical and biological (CB), toxic industrial chemicals (TICs) and toxic industrial materials (TIMs). Some of these are sorbed quite aggressively. When contaminants are sorbed on pipe materials, the water distribution system becomes contaminated and unusable for long periods of time (Ginsberg and Hock, 2004). We describe self-cleaning coatings ... |
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| Computational Models to Determine Transport and Hydrolysis Rate Parameters of Contaminants in a Water Distribution System |
Dec 2008 |
6 pages |
| Authors:
Mark D Ginsberg; Margaret M Hurley; Aleksei Aksimentiev; Frances C Hill; Vincent F Hock; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL
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| The anthrax attacks of September 18, 2001 refocused attention on methods of asymmetric warfare including introduction of contaminants into water distribution systems. To predict the outcome of such an event, previous chemical models of transport in water distribution systems assumed that any contaminant would move through the system via pure hydraulic transport, meaning that the contaminant would not interact with the pipe wall. Such models predict that flushing a system ... |
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| Demonstration of Pipe Corrosion Sensors at Fort Bragg, NC: Final Report on Project AR-F-317 for FY05 |
Jun-2007 |
239 pages |
| Authors:
James Bushman; van; Vincent F Hock; Vicki L Blaricum; Bopinder Phull; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
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| This Office of the Secretary of Defense Corrosion Prevention and Control Program project demonstrated the use of sensors that are permanently installed in the potable water distribution system to monitor water chemistry/corrosivity and corrosion rates. One water chemistry sensor and one corrosion-rate sensor were installed at each of four locations in the potable water distribution system at Fort Bragg, North Carolina, and were interfaced with the supervisory control and data ... |
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| Demonstration of Ice-Free Cathodic Protection Systems for Water Storage Tanks at Fort Drum: Final Report on Project AR-F-318 for FY05 |
Jun 2007 |
186 pages |
| Authors:
van; Vicki L Blaricum; Vincent F Hock; Timothy K Perkins; James Bushman; Bopinder Phull; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
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| The anodes for conventional cathodic protection (CP) systems used inside water storage tanks are often damaged by ice during cold weather. The CP system described in this report uses ceramic-coated wire anodes and a floating support system to keep the anodes submerged beneath surface ice in the tank. Demonstration systems were installed in two elevated water storage tanks at Fort Drum, NY. System performance is monitored using the existing supervisory ... |
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