Comments on: Meat Tenderizer For Your Demolition Hammer? http://toolmonger.com/2008/10/02/meat-tenderizer-for-your-demolition-hammer/ All tools. All the time. Your source for news, information, and reviews of hand tools, power tools, and tools of all kinds. Sun, 22 Nov 2009 10:55:43 +0000 http://wordpress.org/?v=2.6.1 By: Captain Fairly-Obvious http://toolmonger.com/2008/10/02/meat-tenderizer-for-your-demolition-hammer/#comment-601168 Captain Fairly-Obvious Sat, 04 Oct 2008 12:36:02 +0000 http://toolmonger.com/?p=13549#comment-601168 Not only that, but it'll dig right through the weakest stuff, slowing down at the solidest stuff, unlike a grinder, where you're slicing into it instead of smashing-off the junk. If you're concerned with the bond of the new concrete, though, here's some things I've learned: 1. get the dust & rubble off. Notice that on good cement it says use "abrasive blasting" to clean & prep? if you want structural bond, do it. if you don't mind structural failure, that's your choice. 2. either use a concrete-vibrator, or some equivalent action to work that concrete/mortar to chemically-bond it right into the surface. Merely slathering it on isn't solid. ( huge difference with mortar: work it until you get chemical stiction, and it'll stay there as it sets. Don't, and it'll separate either while it sets, or at the slightest shifting of the work ) 3. glue-concrete. "Sika-top"'s one, and it's wonderful for sticking to stuff, but the "bull-dog made out of tar" has got to be epoxy-cement. $250/unit, but damn, does that stuff STICK to everything. ( say goodbye to your clothes ). Funny, I seem to remember my arms hurting, when remembering that smasher-head... :) Not only that, but it’ll dig right through the weakest stuff, slowing down at the solidest stuff, unlike a grinder, where you’re slicing into it instead of smashing-off the junk.

If you’re concerned with the bond of the new concrete, though, here’s some things I’ve learned:

1. get the dust & rubble off. Notice that on good cement it says use “abrasive blasting” to clean & prep? if you want structural bond, do it. if you don’t mind structural failure, that’s your choice.

2. either use a concrete-vibrator, or some equivalent action to work that concrete/mortar to chemically-bond it right into the surface. Merely slathering it on isn’t solid. ( huge difference with mortar: work it until you get chemical stiction, and it’ll stay there as it sets. Don’t, and it’ll separate either while it sets, or at the slightest shifting of the work )

3. glue-concrete. “Sika-top”’s one, and it’s wonderful for sticking to stuff, but the “bull-dog made out of tar” has got to be epoxy-cement. $250/unit, but damn, does that stuff STICK to everything. ( say goodbye to your clothes ).

Funny, I seem to remember my arms hurting, when remembering that smasher-head…

:)

]]> By: Asbestos http://toolmonger.com/2008/10/02/meat-tenderizer-for-your-demolition-hammer/#comment-596857 Asbestos Fri, 03 Oct 2008 03:21:43 +0000 http://toolmonger.com/?p=13549#comment-596857 We used these things all the time in construction, as a fast way to grind down concrete. if you've got some extra concrete where it shouldn't be, this is the way to go. It's faster and much less dusty then grinding. We used these things all the time in construction, as a fast way to grind down concrete. if you’ve got some extra concrete where it shouldn’t be, this is the way to go. It’s faster and much less dusty then grinding.

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