#11  
Old 03-26-2008, 04:31 AM
CanuckJim's Avatar
Il Pizzaiolo
 
Join Date: Jan 2006
Location: Prince Albert, Ontario, Canada
Posts: 1,480
Default Re: Vermiculite-concrete as roof

CV,

Type S is a cement. Comes in a bag, just like Portland, and it's marked as such. Ditto Type N, which is used for exterior vertical applications because of it's better stickiness. On the hardness scale, Portland is at the top. The other two have more flex. Type S mixed with fine sand (1:3) is standard here for laying block and brick. No reason at all you couldn't use it in your vermic/cement mix.

Jim
__________________
"Made are tools, and born are hands"--William Blake, 1757-1827
Reply With Quote
  #12  
Old 03-26-2008, 04:38 AM
david s's Avatar
Il Pizzaiolo
 
Join Date: Mar 2007
Location: Townsville, Nth Queensland,Australia
Posts: 4,878
Default Re: Vermiculite-concrete as roof

CVDukes, If you use colouring in your portland cement mixture (we call it oxide colouring here in Aust. ) you will not get a particularly good colour because the grey of the cement tends to kill the colour of the oxide. I find it better to make a "paint " from white portland cement (expensive but you don't need much) lime, finest sand you can find. Mix these in equal parts with some oxide and paint it over your cement render. You get a nice colour intensity. Remember to add the same proportions of oxide if you do subsequent coats.
Reply With Quote
  #13  
Old 03-26-2008, 11:19 AM
Frances's Avatar
Il Pizzaiolo
 
Join Date: Aug 2007
Location: Allschwil, Switzerland
Posts: 2,186
Default Re: Vermiculite-concrete as roof

uh Jeff... what is that picture of your oven doing hiding in this thread???

Give it its own thread mate, and get the advice it deserves!

I'll start off here, because I happen rather to like those swirls. One piece of advice would be to tone down the light/dark contrast a bit. Say if you went over the whole oven with a translucent layer of ochre. Or put medium ochre/brown brush strokes along the edges of the white swirls, to soften them a bit.

Actually, I'll tell you what I'd probably do: add more little swirls on the big ones. Hang on I'll grab a piece of paper and try to show you what I mean. (Watch this space.)

I think the overall design works beautifully, looks really striking on the small picture, but when its enlarged - well, I see what you mean, it does need a little bit more work

At least, thats my opinion....
Reply With Quote
  #14  
Old 03-26-2008, 12:21 PM
chuckster's Avatar
Laborer
 
Join Date: Dec 2007
Location: Graham, North Carolina
Posts: 91
Default Re: Vermiculite-concrete as roof

I bought powdered dye at Lowes 2 years ago when I built my oven. I used 1/2 of the bag (it came in a box on the outside) to 1 mixer of concrete. It worked OK for the work area next to the oven. It was about $5US if I remember correctly. Its still red two years later.
Chuck
Reply With Quote
  #15  
Old 03-27-2008, 06:49 AM
Dutchoven's Avatar
Master Builder
 
Join Date: Apr 2007
Location: Mississippi
Posts: 931
Default Re: Vermiculite-concrete as roof

Here in the US also...type S is preferrable for load bearing applications...type N(having more lime) is preferred for vertical applications...repointing, covering, surface bonding
Dutch
Quote:
Originally Posted by CanuckJim View Post
CV,

Type S is a cement. Comes in a bag, just like Portland, and it's marked as such. Ditto Type N, which is used for exterior vertical applications because of it's better stickiness. On the hardness scale, Portland is at the top. The other two have more flex. Type S mixed with fine sand (1:3) is standard here for laying block and brick. No reason at all you couldn't use it in your vermic/cement mix.

Jim
__________________
"Making the simple complicated is commonplace; making the complicated simple, awesomely simple, that's creativity. " Charles Mingus
"Build at least two brick ovens...one to make all the mistakes on and the other to be just like you dreamed of!" Dutch
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Can I use insulating vermiculite concrete instead of mortar clading waynebergman Pompeii Oven Construction 4 12-30-2009 07:20 PM
Curing Concrete and Masonry Xabia Jim Tools, Tips and Techniques 21 03-31-2008 03:15 PM
How should vermiculite concrete look once it is cured? vincentvintris Getting Started 10 04-25-2007 03:47 PM
Super Isol vs. vermiculite concrete Alan Getting Started 4 08-03-2006 05:57 PM
Hipped roof design james Design Styles, Chimneys and Finish 7 05-20-2006 07:52 AM


All times are GMT -7. The time now is 03:44 AM.

Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
2006/10 Forno Bravo, LLC