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Thread: Recycling GRP

  1. #1
    Join Date
    Jan 2019
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    Arrow Recycling GRP

    https://www.cruisingworld.com/green-...oat-recycling/

    This is great, tricky to coordinate, but necessary as the demand declines for old boats.

    Anything similar in the UK?
    Last edited by sails_02; 11-07-19 at 08:41. Reason: spelling

  2. #2
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    Sep 2010
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    Default Re: Recycling GRP

    I don't accept their spy ware and tracking.

    What are they saying?
    Life is too short to drink bad wine.

  3. #3
    Join Date
    Jan 2019
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    7

    Default Re: Recycling GRP

    Quote Originally Posted by Tomahawk View Post
    I don't accept their spy ware and tracking.
    Me neither, I open a container'd tab in Firefox to take a look (but usually avoid the site).

    Pretty thin, but essentially:

    "The pilot project is currently working with local Rhode Island boatyards to recycle 20 to 30 metric tons of fiberglass, while also partnering with various agencies to create a physical process that meets all local, state and federal health and safety requirements.

    This *recycled material will be tested in a specialized cement kiln later this year. Additionally, the RIFVR Pilot Project is conducting a cost-*benefit analysis, researching any legislation and regulations that could be *implemented to support *fiberglass-recycling programs, and carefully *documenting the process."
    Last edited by sails_02; 11-07-19 at 10:08. Reason: cookies bit

  4. #4
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    Jan 2017
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    Norfolk
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    1,358

    Default Re: Recycling GRP

    Most boats in the States have keels of lead. Typically that means 35 to 40% of the waste (ie the boat) is of high value. Include the mast / engine / rails etc and there is enough money to pay for disposing of the GRP component..

    Using cast iron keels in the UK that were neither very heavy nor rust resistant was a stupid idea at manufacture, and now it means there's not enough residual value in the scrap to empty our waters of the unwanted boats cluttering up everywhere.

  5. #5
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    Default Re: Recycling GRP

    For a long time, I have thought that "dead boats" should be used to make artificial reefs.

    GRP wood or whatever, they will all develop a blanket of marine growth on every surface which becomes an ecosystem supporting marine life. GRP is pretty resilient material.
    Life is too short to drink bad wine.

  6. #6
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    May 2007
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    Default Re: Recycling GRP

    Quote Originally Posted by Tomahawk View Post
    For a long time, I have thought that "dead boats" should be used to make artificial reefs.

    GRP wood or whatever, they will all develop a blanket of marine growth on every surface which becomes an ecosystem supporting marine life. GRP is pretty resilient material.
    Unfortunately, GRP is not very dense and would require considerable anchoring to the sea bed. Further, it would erode readily, increasing the burden of microplastic in the ocean. It's an appealing idea, but it wouldn't work. The authors of this project probably have the only viable route for recycling GRP by using it as feedstock for making cement, where the resin will reduce the fuel required and the glass will contribute to the chemistry of cement production.

  7. #7
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    Default Re: Recycling GRP

    What about if the reefs are made in relatively sedate waters like the East Coast where there are extensive mud banks?
    Life is too short to drink bad wine.

  8. #8
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    Default Re: Recycling GRP

    Still doesn't solve the problem of degrading plastic in the sea.....

  9. #9
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    UK East Coast
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    35,653

    Default Re: Recycling GRP

    Quote Originally Posted by neil1967 View Post
    Still doesn't solve the problem of degrading plastic in the sea.....
    How much is it going to degrade? We already have 50-60 year old GRP boats floating around happily; their hulls haven't degraded.

  10. #10
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    Default Re: Recycling GRP

    Quote Originally Posted by pvb View Post
    How much is it going to degrade? We already have 50-60 year old GRP boats floating around happily; their hulls haven't degraded.
    Reefs need currents to be useful. The seabed is a more active environment than most people brealuze, and the combination of current and sediment will erode GRP much faster than a boat at the surface.

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