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Calcium Silicate Bricks for insulation - Forno Bravo Forum: The Wood-Fired Oven Community

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Calcium Silicate Bricks for insulation

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  • Calcium Silicate Bricks for insulation

    Hi All,

    Im after some advice regarding some second hand bricks im thinking of using as my under-floor insulation.

    These are the Calcium Silicate bricks manufactured at Kurnell Sydney over many years, but now no longer manufactured.
    THEY WERE MARKETED UNDER THE TRADING NAME - "CALSIL"
    They are a standard off white colour.
    They are autoclaved sand and cement bricks which are lighter weight yet structurally sound.

    These are the only specs I have on them.

    I've attached a photo of them also.

    Does anyone know if they would be ok to be used for the purpose I have in mind?

    Regards,
    Bruno
    Attached Files
    Regards,

    Bruno

    http://www.fornobravo.com/forum/f35/...hen-18538.html

  • #2
    Re: Calcium Silicate Bricks for insulation

    They will be fine for insulation purposes.

    Comment


    • #3
      Re: Calcium Silicate Bricks for insulation

      I though Calsil bricks were house bricks and autoclaved sand and lime?
      I laid some similar back in the 70's.

      http://en.wikipedia.org/wiki/Brick#C...ilicate_bricks

      http://www.schaffer.com.au/about-us/history

      .
      Last edited by brickie in oz; 04-27-2011, 12:17 AM.
      The English language was invented by people who couldnt spell.

      My Build.

      Books.

      Comment


      • #4
        Re: Calcium Silicate Bricks for insulation

        My insulating firebricks actually float in water (they are full of air to insulate)....Do those bricks float?
        Lee B.
        DFW area, Texas, USA

        If you are thinking about building a brick oven, my advice is Here.
        Our One Meter Pompeii Oven album is here.
        An album showing our Thermal Breaks is Here.

        I try to learn from my mistakes, and from yours when you give me a heads up.

        Comment


        • #5
          Re: Calcium Silicate Bricks for insulation

          Originally posted by Lburou View Post
          My insulating firebricks actually float in water (they are full of air to insulate)....Do those bricks float?
          I havent got my hands on them yet. I'm hoping to pick them up next week so I'll let you know then. I suppose if they are no good as insulators I can always use them as normal bricks somewhere in my stand or bbq bench I'm planning on building.

          Regards,
          Bruno.
          Regards,

          Bruno

          http://www.fornobravo.com/forum/f35/...hen-18538.html

          Comment


          • #6
            Re: Calcium Silicate Bricks for insulation

            Ok, I picked up the bricks this morning and found that they weigh just as much as a normal brick .

            Does this mean they arent true insulation bricks?

            Regards,
            Bruno.
            Regards,

            Bruno

            http://www.fornobravo.com/forum/f35/...hen-18538.html

            Comment


            • #7
              Re: Calcium Silicate Bricks for insulation

              Sounds like a house brick to me.
              The English language was invented by people who couldnt spell.

              My Build.

              Books.

              Comment


              • #8
                Re: Calcium Silicate Bricks for insulation

                I'm afraid you may be right Brickie......

                Oh well, i guess they're foing into the bbq bench.

                Regards,

                Bruno
                Regards,

                Bruno

                http://www.fornobravo.com/forum/f35/...hen-18538.html

                Comment


                • #9
                  Re: Calcium Silicate Bricks for insulation

                  They were all the rage back in the 70's, once laid they absorb the pollutants from the air and go yellow.
                  The English language was invented by people who couldnt spell.

                  My Build.

                  Books.

                  Comment

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