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  • Topic: Backyard viaduct project, 1/3rd finished

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    • November 19, 2017 2:27 PM EST
      • seffner, FL
         
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      Backyard viaduct project, 1/3rd finished

      I am trying to get my trains off of the kitchen table and outside, so I made some patterns and molds for concrete viaducts.  I have six molds for the columns, 3 for straight sections and 3 for the curved sections.  This layout is heavy, but portable, if you want to take a chance of injuring your back.  Everything is just sitting there.  It will be 160 feet long, with two tracks, and later I will try to spur off into the house.  A work in progress.  Today, it is raining, so no concrete work today, so I am working on the Superliner. Bob.

    • November 19, 2017 3:04 PM EST
      • Carlsbad, CA
         
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      Looks great, about how much do the 3-column sections weight each?

      Do you add some reinforcing inside?

       

      Greg

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    • November 19, 2017 3:38 PM EST
      • Peoria, NW of Phoenix, Arizona
         
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      looks good and heavy. I would like to see how you did the molds and some close up  of the finished products

       

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    • November 19, 2017 4:35 PM EST
      • seffner, FL
         
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      Here are some pictures of the project.  The first one is of the patterns, from the pattern, I made urethane molds. Bob.

      IMG_1168.JPG (131 Kb)
      This post was edited by robert brown at November 19, 2017 4:37 PM EST
    • November 19, 2017 4:41 PM EST
      • Your Host in Littleton, MA
         
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      Nice!

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    • November 19, 2017 4:44 PM EST
      • seffner, FL
         
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      Thanks Bob., I just posted some pictures for Pete Lassen or anyone else, for that matter, Bob.

    • November 19, 2017 4:53 PM EST
      • Highland, Maryland
         
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      I'm in awe Robert, your viaduct components look fantastic!

       

      What sort of foundation did you prepare?

       

       

    • November 19, 2017 8:08 PM EST
      • seffner, FL
         
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      I have forms, one straight and one curved poured 3 inches thick and am pouring as I go to maintain allignment.  They are 20 inches by 30 inches and I install the columns and the arches the next day.  Bob.Here is another video.      https://youtu.be/Eg-X9_A3pJ0

      This post was edited by robert brown at March 22, 2018 8:08 AM EDT
    • November 19, 2017 8:33 PM EST
      • Sparta, TN
         
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      How does urethane hold up to concrete?  Is it similar to latex?

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    • November 20, 2017 12:14 AM EST
      • Peoria, NW of Phoenix, Arizona
         
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      Thanks Robert, Great job on them they look like they would hold up a tank!

       

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      Butt Modeler #2

       

       

    • November 22, 2017 7:48 PM EST
      • Saint Johns, Florida
         
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      robert brown said:

      I have forms, one straight and one curved poured 3 inches thick and am pouring as I go to maintain allignment.  They are 20 inches by 30 inches and I install the columns and the arches the next day.  Bob.Here is another video.      https://youtu.be/Eg-X9_A3pJ0

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    • November 22, 2017 8:38 PM EST
      • seffner, FL
         
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      Thanks Joe, I forgot about that one. Bob.

    • November 22, 2017 9:53 PM EST
      • Post Count ,PA ,
         
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      Very nice !

      The molds are very cool!

       

      When I did a viaduct for my RR  I opted for a much lighter with free materials to build with. Been close to 10yrs outside now and still holding up.

       

    • November 25, 2017 4:01 AM EST
      • seffner, FL
         
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      Thank you Rooster.  Burl, the question about the difference between latex and urethane as far as toughness, I don't think there is any difference, but I have worked with latex and while it is strong, it takes too long to set up.  I can use urethane in 8 hours.  These molds that I am using for the viaducts, show no wear, so far, and I am a third done.  Silicone is another way to go, but more expensive. Bob.

    • November 30, 2017 3:33 PM EST
      • Seattle, Washington
         
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      Wow. Amazing work on the viaduct.

    • December 3, 2017 9:28 PM EST
      • seffner, FL
         
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      Thank you Nicolas.  It is a slow process for me as I keep letting other projects get in the way, but someday, it will be finished. Bob.

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