web analytics
vermicrete - Forno Bravo Forum: The Wood-Fired Oven Community

Announcement

Collapse

Forum Issues Update

We are continuing to work diligently to resolve the issues currently being experienced with the PhotoPlog. Thank you for your patience!
See more
See less

vermicrete

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

  • vermicrete

    not sure that last posting posted -- I am attempting to calculate how much Portland cement and vermiculite I need to purchase. I have a 6 ft by 7 ft with a 4 inch depth. Need a 5 10 1 ratio -- any help?

  • #2
    Re: vermicrete

    Hman

    That sounds like 14 cf to me of vermiculite. Get some extra, maybe one or two cf if you can. A 5 : 1 ratio should need 3 bags of 90# portland. I dry mixed the vermiculite and portland by pouring the portland over the vermiculite and then mixing that. then add water to get oatmeal consistency.

    HTH

    Texman
    My Progress:
    http://www.fornobravo.com/forum/f8/t...ild-17324.html

    Comment


    • #3
      Re: vermicrete

      For every 10 parts vermiculite add about 3 parts water. I mix the cement and vermiculite dry first then add the water. You will lose around 20% in volume when you mix the water in so this needs to be accounted for.
      Kindled with zeal and fired with passion.

      Comment

      Working...
      X