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Dan94550 08-20-2007 11:18 AM

Cutting concrete block
 
I've got my stand all layed out and ready to pour the concrete inside the blocks but I need to get the blocks to lay flat after installing the angle iron. What is the easiest way (other than a wet diamond blade) to cut out for the angle iron so the blocks will lay flat?

wlively 08-20-2007 12:01 PM

Re: Cutting concrete block
 
Angle grinder and a masonary blade.

Ken524 08-20-2007 12:40 PM

Re: Cutting concrete block
 
2 Attachment(s)
Quote:

Originally Posted by Dan94550 (Post 13987)
I've got my stand all layed out and ready to pour the concrete inside the blocks but I need to get the blocks to lay flat after installing the angle iron. What is the easiest way (other than a wet diamond blade) to cut out for the angle iron so the blocks will lay flat?

My SkilSaw and a masonry blade made the job very easy.

Ken

maver 08-20-2007 01:40 PM

Re: Cutting concrete block
 
But the easiest way is to set the angle iron outside the blocks and let your mortar make up the 3-5mm difference!

Ken524 08-20-2007 02:17 PM

Re: Cutting concrete block
 
Quote:

Originally Posted by maver (Post 14000)
But the easiest way is to set the angle iron outside the blocks and let your mortar make up the 3-5mm difference!

I'll one-up you for an even easier route. Just sit the blocks on the angle iron and don't worry about any grooves or mortar thickness. Just let the blocks stick up a few millimeters.

When you put the forms on the block stand for the hearth, make sure they are level (the blocks on the angle iron will stick up just a bit higher) and pour the hearth. No one will ever know. Shouldn't be any structural issues.

That's how I'd do it if I had to do it again. :)

Ken

Dan94550 08-20-2007 02:18 PM

Re: Cutting concrete block
 
Thanks guys. I tried the skill saw yesterday and the old blade I had on there broke and I'm having a hell of a time trying to take off what is remaining on the shank. The blade I had on my angle grinder was for metal. I will go out and buy some new blades and continue.

Dan94550 08-20-2007 02:20 PM

Re: Cutting concrete block
 
Quote:

Originally Posted by maver (Post 14000)
But the easiest way is to set the angle iron outside the blocks and let your mortar make up the 3-5mm difference!

Unfortunately I am going the dry fit route so there isn't any mortar gap to make up the difference.

james 08-20-2007 02:21 PM

Re: Cutting concrete block
 
Home Depot has started carrying good and cheap diamond blades for cutting brick, block and stone. They are a lot faster and easier than the old fashioned black masonry blades -- and not that much more expensive. They work really well at first when they are still sharp, so cutting block is a breeze.
James

dmun 08-20-2007 02:57 PM

Re: Cutting concrete block
 
Quote:

Originally Posted by james (Post 14006)
so cutting block is a breeze.

Or you could just leave them out in the breeze;) .

No, really, get the diamond blade for the angle grinder. It's worth the money, and you'll use it a lot. And buy a good face mask while you're there. Big Dust Alert.

SuperT 08-20-2007 04:20 PM

Re: Cutting concrete block
 
What size Angle Grinder you guys using...I bought a 4 inch and couldn't do much with it.

Tony


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