#1  
Old 09-21-2009, 04:39 PM
kebwi's Avatar
Il Pizzaiolo
 
Join Date: Aug 2009
Location: Seattle, WA, USA
Posts: 1,010
Default Novice concrete question

When "floating" the foundation and/or hearth after screeding it with a 2x4, do I need to use a metal float or is a piece of wood with a handle on it sufficient? Does it make any difference structurally (does one draw water to the surface more or less than the other, and is that a good or bad thing?) or is it purely aesthetic with regard to the appearance and texture of the concrete (in which case I'll probably just go with the wood since I don't care what the concrete looks like, I'll probably flagstone it later anyway.).

Thoughts?
__________________

Website:
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

WFO Webpage:
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Thread:
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Reply With Quote
  #2  
Old 09-21-2009, 04:55 PM
Les's Avatar
Les Les is offline
Il Pizzaiolo
 
Join Date: Sep 2005
Location: Carson City, NV
Posts: 2,853
Default Re: Novice concrete question

You are good to just screed it off. If all goes well, there should be no water there to be of concern. I left mine rough as well, my thinking was that the mortar would adhere to it better.

Les...
__________________
Check out my pictures here:

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


If at first you don't succeed... Skydiving isn't for you.
Reply With Quote
  #3  
Old 09-21-2009, 05:06 PM
nissanneill's Avatar
Il Pizzaiolo
 
Join Date: Apr 2007
Location: Adelaide, South Australia
Posts: 1,875
Thumbs up Re: Novice concrete question

kebwi
after you screed it off with your 4x2, that gets it flat and level but with a rough finish.
Sure it is non slip but if you want it nicer, easier to sweep or mop, flatter for tiling etc. then you need to use a concreting float. A wooden one held flat and used in a circular motion can push the agregate a little lower (when the concrete is wet and soft) and will not bring the water to the surface. A steel trowel on the other hand will bring the water out of the concrete (which won't hurt apart from possibly leaving water marks on the surface). To get the smoother finish hold up the leading edge of the trowel and when the cement is hard enough to walk on without leaving indentations, use a sweeping motion to get that super smooth finish.
If you have excess water, then make up a 1 part portland and 1 part concrete sand mix and sprinkle it over the surface, work it into a slurry with your flat trowel and then when it is a little drier, float it our with your steel trowel. You can add some coloured oxide to the mix to put a coloured surface on your concrete but follow the instructions on the oxide container.

Good luck and watck your back.

Chers.

Neill
Reply With Quote
  #4  
Old 09-21-2009, 11:08 PM
kebwi's Avatar
Il Pizzaiolo
 
Join Date: Aug 2009
Location: Seattle, WA, USA
Posts: 1,010
Default Re: Novice concrete question

Thanks. I always appreciate the thorough advice.

Cheers!
__________________

Website:
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

WFO Webpage:
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Thread:
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

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
Alternatives to concrete hearth kebwi Pompeii Oven Construction 9 09-02-2009 08:58 PM
Concrete for the hearth slab. I burnt my fingers Getting Started 6 08-23-2009 08:46 AM
Question On Pouring Concrete Into Blocks DaveDQ Getting Started 5 07-29-2008 07:54 AM
Curing Concrete and Masonry Xabia Jim Tools, Tips and Techniques 21 03-31-2008 02:15 PM
Question #Bags of Concrete for Foundation mrpbjnance Pompeii Oven Construction 6 05-12-2006 01:44 PM


All times are GMT -7. The time now is 02:57 AM.

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