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  1. nwitt

    Foundation Design for 10'D Asphalt Tank

    Our typical foundation design for small asphalt (or other elevated temp. products) is simply a raised concrete slab with a sheet of asphalt impregnated fiberboard between the slab and the tank bottom. On a recent project, on of the other engineers in our office designed in (4) radially spaced 1...
  2. nwitt

    Zinc plated hardware against stainless steel

    Are there any concerns with using zinc plated hardware against 316 L stainless steel? The application is a steam ejector. I'm not a metallurgy person so please advise if you need additional information to be able to answer the question.
  3. nwitt

    Groundwater under building foundation

    The building in question is a manufacturing facility approx. 400'L x 200'W. The building was constructed on select fill over expansive clay; the select fill ranges from 7' to 14' thick. Even with the select fill thickness, the building has suffered substantial foundation damage due to swelling...
  4. nwitt

    Asphalt Truck Loading - Vapor Removal

    Operators loading hot asphalt into tanker trucks are often exposed to a flood of vapors above the truck dome. Most terminals/asphalt plants utilize some type of exhaust system to remove these vapors. Systems can consists of a simple fan to blow the vapors away or piping, a mist eliminator, and...
  5. nwitt

    Long Term Outdoor Storage for Heat Exchangers

    I've got 12-15 heat exchangers on order for delivery between first of October 2008 and end of January 2009. Due to unforseen circumstances, the project to install these exchangers has been delayed until Spring 2010. My question is, what procedures/practices should be used to protect this...

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