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-   -   ? on ratio of vermiculite to cement (http://www.fornobravo.com/forum/f8/ratio-vermiculite-cement-712.html)

toddlungman 06-13-2006 12:47 AM

? on ratio of vermiculite to cement
 
is the ratio volume or #?

CanuckJim 06-13-2006 02:48 AM

Ratio
 
I use a standard ratio of six vermiculite to one Portland by volume. It's not a critical mix, but it's good to get close. Do it by shovelfuls, pails, what have you.

Jim

edjc 12-03-2013 08:09 AM

Re: ? on ratio of vermiculite to cement
 
Ratios by volume!!

ogorir 12-03-2013 06:03 PM

Re: ? on ratio of vermiculite to cement
 
I did 8:1 under the dome, probably could've done 10:1 really, definitely by volume.

david s 12-06-2013 03:22 AM

Re: ? on ratio of vermiculite to cement
 
Under the floor you need the strength. Should be around 5:1. Over the dome go as lean as you dare. I use 10:1


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