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View Diary: Everything You Never Wanted to Know about Nuclear Containments (214 comments)

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  •  Not sure, I know if you got a brain storm going (6+ / 0-)

    between a group of 20+ materials chemists, they would provide you with 3-4 best ideas based on assumptions about the sizes of the cracks that need to be filled.

    we are but temporary visitors on this planet. The microbes own this place <- Me

    by yuriwho on Fri Mar 18, 2011 at 07:17:12 PM PDT

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    •  For example (4+ / 0-)
      Recommended by:
      kbman, WI Deadhead, worldlotus, LookingUp

      floating golf balls of various sizes would partially plug bigger cracks as the pool if willed with them + water, add those first. If you have evidence they have reduced flow rate you can decide what to add next. Continue until you are down to small balls that float but won't melt, finally add bentonite to plug it all up.

      Btw, bentonite is basically shrunken & dehydrated clay powder. It will expand about 4-5 fold upon contact with water. It may not be the best material to choose but there are many more polymers that expand slowly upon exposure to water that you could choose from.

      To make good decisions, having imagers of the cracks to be plugged would be essential.

      Where are the robots?

      we are but temporary visitors on this planet. The microbes own this place <- Me

      by yuriwho on Fri Mar 18, 2011 at 07:36:47 PM PDT

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      •  iRobot (2+ / 0-)
        Recommended by:
        yuriwho, kbman

        Causation was, is, and ever shall be a slippery bitch, so we're best sticking with noting the facts

        by jam on Fri Mar 18, 2011 at 07:59:26 PM PDT

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        •  I dont think robots are very useful (3+ / 0-)
          Recommended by:
          kbman, erush1345, BachFan

          In this case other than cameras or big mechanical stuff like remote control heavy vehicles.

          The reason is the environment and the terrain. Workplace is a mess of rubble, water and radioactivity.

          Some of the space bound robots might be able to survive since they are radiation hardened and might be able to navigate, but they are pretty purpose built and probably too small to do what is needed in terms of mechanical work although they might be useful for surveying the interior if they meet the above conditions.

          But that shouldn't stop anyone from thinking or trying, I'm frequently mistaken and know far less than what I don't know.

          What about my Daughter's future?

          by koNko on Sat Mar 19, 2011 at 01:41:26 AM PDT

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          •  I was figuring radio controlled mini helicopters (3+ / 0-)
            Recommended by:
            erush1345, yuriwho, koNko

            with lights and camera to do reconnaissance inside the reactor buildings and survey the refuel floor from close up.

            Free: The Authoritarians - all about those who follow strong leaders.

            by kbman on Sat Mar 19, 2011 at 02:44:20 AM PDT

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            •  Good Idea. (0+ / 0-)

              Fukushima DataBlogSo you have proven my last statement correct.

              Yeah, my basic take on this is robots or drones could help to get more information inside that might be visible from arial observation although I suppose the US military may have provided some sophisticated imaging gear and I'm certian they are keeping the buildings under constant thermal imaging monitoring.

              But sometimes line of sight is importiant and the reactors that suffered explosions are really a mess.

              BTW I think you might be interested in this link information is well orgamized:

              Fukushima DataBlog

              And this:

              Fukushima Timeline

              I've added these and others to a comment to the Tip Jar in Diary 17.

              What about my Daughter's future?

              by koNko on Sat Mar 19, 2011 at 09:38:40 AM PDT

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    •  Lead filled concrete (5+ / 0-)
      Recommended by:
      kbman, erush1345, BachFan, yuriwho, BusyinCA

      Reinforced with chopped aspestos or glass fiber, of the type with additives that cause it to expand rather than contract on curing. Such concrete (minus the lead) is used for strutural repairs particulatly underwater and readally available.

      Whatever is added is ideally a liquid that can be pumped or dropped in to avoid mechanical damage in the installation process.

      BTW, lead is magical stuff. I've spent the better part of the last 10 years working on the problems that happen when you take it away, but in some instances it is irreplaceable and the cost/benifit balance in this case is net positive in many respects not just for the radiation shielding but the mechanical properties, it has great plastic properties and creep stress endurance.

      But I'm sure the engineers working this problem have already thought of that and even more, junk drops and entoumbment are already issues in play.

      Anyway the above would be my home-brew recipie. Don't try this at home without a Hazmat suit folks.


      Happy Day.

      What about my Daughter's future?

      by koNko on Sat Mar 19, 2011 at 01:32:36 AM PDT

      [ Parent ]

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