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Better concrete with seawater

This topic contains 8 replies, has 6 voices, and was last updated by  Siberian 3 months, 2 weeks ago.

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  • #635039

    TopNotch
    Pro
    elmwood park, NJ

    I found this article interesting so I thought I would share.

    https://www.theguardian.com/science/2017/jul/04/why-roman-concrete-still-stands-strong-while-modern-version-decays

    Working Pro since 1993

    Tom M

    #635041

    kurt@welkerhomes.com
    Pro
    Owatonna, MN - Minnesota

    Interesting, one of the reasons it worked is that there was no reinforcing steel in the concrete for the saltwater to react with. saltwater does nasty things to reinforcing steel.

    It would be interesting to see tests on a similar modern material.

    #635043

    TopNotch
    Pro
    elmwood park, NJ

    Well they say that the volcanic rock seawater combined created Crystals that grow within the concrete filling space that would otherwise open and crack.

    Working Pro since 1993

    Tom M

    #635045

    kurt@welkerhomes.com
    Pro
    Owatonna, MN - Minnesota

    kind of a self healing concrete, I have read about that recently

    #635047

    TopNotch
    Pro
    elmwood park, NJ

    Cool. science is so cool. I enjoyed it as a kid in school.

    I have been watching “graphene” for a bit too. Impressive material.

    Working Pro since 1993

    Tom M

    #635063

    kind of a self healing concrete, I have read about that recently

    <figure class=”oe-video-container”><iframe width=”770″ height=”433″ src=”https://www.youtube.com/embed/laqACVY1U_k?feature=oembed&wmode=opaque” frameborder=”0″ allowfullscreen=””></iframe></figure>

    That’s pretty cool. science has gone a long way.
    I am curious how long it will take for the bacteria to fill the cracks etc.

    "If you're going to do something, do it right the first time"
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    Palm Springs, CA

    #635066

    utopia78
    Pro
    Toronto, ON

    Nice article! It’s amazing how they built stuff to withstand the test of time!

    Lime is commonly used and is considered self healing opposed to portland cement.

    A Working Pro since 2004

    #635088

    theamcguy
    Pro
    Fayetteville, NC

    Great article, really enjoyed it. Thank you for sharing.

    Automotive Pro
    Fayetteville, NC

    #635304

    Good stuff. Wished I knew concrete. I always worried about the salt in the wintertime. Good read

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