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re: Got Blocks : 2 Concrete Countertops (24x24x3) Needed in BR (Got Granite quotes)

Posted on 6/26/14 at 2:18 pm to
Posted by wickowick
Head of Island
Member since Dec 2006
45803 posts
Posted on 6/26/14 at 2:18 pm to
Yep the silicone will work. You can use some wooden door jamb wedges to level the countertops.
Posted by Bleeding purple
Athens, Texas
Member since Sep 2007
25315 posts
Posted on 6/26/14 at 2:23 pm to
yep boss cheap clear silicone and either wooden door shims or plastic laminate flooring shims are the ticket for attaching the tops.


If you want to help keep the blocks from sliding around on each other without permanently mortaring them in place you can use a lawn size trash bag stuffed down through all the vertical holes in the blocks. Then fill it with sand. I would make sure if you do so to put it on the outside of the structure farthest away from the heat source.
Posted by NOLAGT
Over there
Member since Dec 2012
13529 posts
Posted on 6/26/14 at 3:19 pm to
Looking good there Boss!
Posted by Motorboat
At the camp
Member since Oct 2007
22677 posts
Posted on 6/26/14 at 3:36 pm to
pour your own concrete countertops. Pretty easy job for something that small.

Make forms, use melanine for tops, seal edges with silicon, pour in concrete, use a little rebar, set, pop off forms.

simple. you could have done that today in the time you tried to source them for about $100.
Posted by bbvdd
Memphis, TN
Member since Jun 2009
24977 posts
Posted on 6/26/14 at 3:42 pm to
quote:

pour your own concrete countertops. Pretty easy job for something that small.

Make forms, use melanine for tops, seal edges with silicon, pour in concrete, use a little rebar, set, pop off forms.

simple. you could have done that today in the time you tried to source them for about $100.


This. I really is easy I made the countertop for my grill as well. Mine are a little more involved the just squares though. For something more use cardboard to the shape you want then flip it and make your form with with melamine. Put some rebar in the areas that will be weak, the use a sawsall to vibrate the bubbles.

Posted by Bleeding purple
Athens, Texas
Member since Sep 2007
25315 posts
Posted on 6/26/14 at 4:13 pm to
I was told to coat the form with a thin layer of concrete and then add fiberglass strands to the remaining concrete mix prior to filling the form. Supposedly this adds strength and prevents the fiberglass from sticking through the surface of the concrete.


Maybe one of the materials guys in here could add some info.


btw if you build your own you could make an inner lip on the bottom of the counter top to sit inside of the block towers and not need the adhesive.
This post was edited on 6/26/14 at 4:15 pm
Posted by bossflossjr
The Great State of Louisiana
Member since Sep 2005
12262 posts
Posted on 6/26/14 at 5:29 pm to
I thought about it. Leavin it up to my wife. If she wants concrete, I will make some. If she wants granite, I will get some.

At $200 or so, makes the entire table $275. Thats pretty cheap considering how much the wooden tables are goin for.... And I can certainly build this one faster than i would one I had to cut, sand and stain.

Got 50 blocks at Lowes today for $70.
Posted by 34venture
Buffer Zone
Member since Mar 2010
11369 posts
Posted on 6/26/14 at 6:08 pm to
For a 24 x 24 I don't think you need to add fiber to the mix, it won't hurt, but this isn't really my area of expertise.
Posted by DLauw
SWLA
Member since Sep 2011
6086 posts
Posted on 6/26/14 at 6:14 pm to
Agreed. Fiber is a waste for something that small. Get some hog wire and throw it in there. Hell, you could tire a couple of wire clothes hangers together and throw it in. You don't need much.
Posted by QuietTiger
New Orleans
Member since Dec 2003
26256 posts
Posted on 6/26/14 at 6:17 pm to
quote:

what is that

I'm going with a barrel holder for a rather large weapon, I would have used sand bags. He's got 2 target holders set up already.
Posted by bbvdd
Memphis, TN
Member since Jun 2009
24977 posts
Posted on 6/26/14 at 6:52 pm to
I used Quikrete 5000 on mine.

Also, on the blocks take some colored mortar mix, sand and make it real thin.wet the masonry blocks and then paint the mix on.
Posted by TigerTaco
Baton Rouge
Member since Jan 2011
373 posts
Posted on 6/26/14 at 7:25 pm to
I did a poured in place concrete counter top using Quikcrete countertop mix purchased at Home Depot. When I researched the process, I read that you shouldn't attach it to the substrate so cracks won't transfer through the base. I used plastic sheeting between the cmu base and the countertop. I also added wire mesh to the concrete mix. It has been outside for almost a year with no cracks. The above said, I prefer the granite top around my ceramic smoker. It is easy to wipe away grease and it doesn't stain. Despite adding a sealer, the concrete is stained by grease drips.
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