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Posted by Phisherman on June 12, 2007, 1:15 pm
On Mon, 11 Jun 2007 22:44:45 -0500, Marc Britten
>For a medium sized job is it worth purchasing a moderately priced diamond
>concrete blade vs an abrasive blade for cutting old concrete slab up?
>
>There are a number of concrete blocks on my property, a few fairly long
>that I need to break up.
>
>I removed one of the smaller ones with an abrasive blade on my circular
>saw. Scored it and then split it with a hammer/chisel. However that
>wasn't very large and ate up the entire blade to slit it in enough places
>to make the chunks manageable.
>
>I guess I'm wondering how the life of a diamond blade is, and is segmented
>better than continuous for old concrete.
If both are used properly your circular saw will likely end its life
before the diamond blade. Sawing concrete produces a lot of fine dust
and grit--not good for your saw and lungs. A jack hammer is the best
way to go.
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