Announcement

Collapse
No announcement yet.

Improving 'floated' finish on concrete countertop

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • #31
    Re: Improving 'floated' finish on concrete countertop

    Looking good. The chalk artwork is very special too.
    Cheers ......... Steve

    Build Thread http://www.fornobravo.com/forum/f3/n...erg-19151.html

    Build Pics http://www.facebook.com/media/set/?s...1&l=1626b3f4f4

    Forno Food Pics https://www.facebook.com/media/set/?...1&l=1d5ce2a275

    Comment


    • #32
      Re: Improving 'floated' finish on concrete countertop

      Damn hairline crack in the counter right at the front, the most visible spot. It doesn't appear to go right through. I assume the best solution us just working some slurry into it when I reach 800grit like with the small bug holes?

      Comment


      • #33
        Re: Improving 'floated' finish on concrete countertop

        Originally posted by RichC View Post
        Damn hairline crack in the counter right at the front, the most visible spot. It doesn't appear to go right through. I assume the best solution us just working some slurry into it when I reach 800grit like with the small bug holes?
        hmmm. Why is it cracking? Hard to say whether or not slurry will fix it or it will just reappear, best to understand why it might be cracking already
        My build progress
        My WFO Journal on Facebook
        My dome spreadsheet calculator

        Comment


        • #34
          Re: Improving 'floated' finish on concrete countertop

          So, the mould forms are removed and you're sanding already?
          Old World Stone & Garden

          Current WFO build - Dry Stone Base & Gothic Vault

          When we build, let us think that we build for ever.
          John Ruskin

          Comment


          • #35
            Re: Improving 'floated' finish on concrete countertop

            Forms are off but haven't done any sanding. I'm guessing its just a shrinkage crack! I used slightly less latex additive than I did on the first attempt that I cut out.

            Comment


            • #36
              Re: Improving 'floated' finish on concrete countertop

              When did you remove the forms? The reason for the questions...I suspect that the slab should have stayed covered and dampened longer. For larger format stuff like your pour, depending on the temperatures, two weeks would be my minimum before I stripped the forms.

              Not much you can do now.
              Old World Stone & Garden

              Current WFO build - Dry Stone Base & Gothic Vault

              When we build, let us think that we build for ever.
              John Ruskin

              Comment


              • #37
                Re: Improving 'floated' finish on concrete countertop

                2 cracks!!! Neither appear to penetrate the slab completely. They're very fine cracks. Rather than try and work a slurry in, I'm going to run my angle grinder blade through it and then fill it. Hopefully this will avoid pockets of trapped moisture that might cause more damage when the frost hits it. Any reasons why this is a bad idea?

                Comment


                • #38
                  Re: Improving 'floated' finish on concrete countertop

                  I wouldn't cut into the cracks. It will just weaken that spot further and it will continue to crack. Cracks are part of using concrete. As long as they're fine lines, don't worry about it. I have a couple cracks in my counters at corners/joints. I never even think about them
                  My build progress
                  My WFO Journal on Facebook
                  My dome spreadsheet calculator

                  Comment


                  • #39
                    Re: Improving 'floated' finish on concrete countertop

                    Thanks Deejay, I'll get the arch built and plaster the dome before I finish the counter. With the Irish weather I'm worried about water ingress

                    Comment


                    • #40
                      Re: Improving 'floated' finish on concrete countertop

                      I would not worry about the cracks if they are small (read hairline) just make sure the counter is well sealed. In cold weather ice is the biggest enemy of concrete. You stop the water, there is no ice.

                      Comment

                      Working...
                      X