Good review, I've found the cheaper diamond grinding wheels and resin bound pads from Amazon and eBay to be just fine. There's a lot of more expensive ones for sale from tool companys under their own brand name and they're probably no better.
This is great! Thanks! I need to grind down my footers for my pergola that were over poured. Have a 2'x2' area that needs to be taken down ~3". How long would you expect that to take?
Hey Lucas. Glad you like the video. I am certainly not a concrete specialist, but if you are grinding down about 3" of concrete, I would steer you away from the wheel I used in this video. It does grind down the surface, but I can't imagine grinding three inches with it. I would look for something more aggressive for sure. I'll have a look around for a grinding solution (small format for a 2' square surface) and let you know here if I find something.
@@lukemilt I got to thinking, and probably the best way would be to make a checkered pattern using a cutting wheel. Make the cuts about an inch deep, then with a hammer, break the chunks off. You can do this a few times until you reach your desired elevation. Then, use a grinding wheel to smooth the surface and re-seal it. The difficulty of this will be if you have rebar or other steel in the top few inches of the footing, as concrete blades don't do well with cutting steel. And, you wouldn't want to leave any steel exposed as it will oxidize and cause the concrete to fail...
I have to say you should wear eye protection. I get it you didn't want to wear a mask as you was recording. Running water next to a grinder is just life hazard.
Yeah, I was pretty impressed with the longevity of these discs. Grinding wet is certainly the way to go - it probably extends the life of the disc by a factor of two!
It's a Ryobi, I believe 7 or 8 amps. It was too small though, and burned out eventually. Now running a Dewalt 12 amp which is much better. You need to keep the dust etc out of the grinder as well. It really mucks it up.
Dude. You're freaking crazy, you should use at least a dust mask and a fan to avoid breathing that crap. That silica dust may be (well, no may be, it is) extremely dangerous for your lungs even for that small amount of time.
Electricity and water! Nothing wrong there!....i am going to cook toast in the bath tonight!
Good review, I've found the cheaper diamond grinding wheels and resin bound pads from Amazon and eBay to be just fine. There's a lot of more expensive ones for sale from tool companys under their own brand name and they're probably no better.
This is great! Thanks!
I need to grind down my footers for my pergola that were over poured. Have a 2'x2' area that needs to be taken down ~3". How long would you expect that to take?
Hey Lucas. Glad you like the video. I am certainly not a concrete specialist, but if you are grinding down about 3" of concrete, I would steer you away from the wheel I used in this video. It does grind down the surface, but I can't imagine grinding three inches with it.
I would look for something more aggressive for sure. I'll have a look around for a grinding solution (small format for a 2' square surface) and let you know here if I find something.
@@markyounger319 Thanks!! I'll keep looking for something more aggressive!
@@lukemilt I got to thinking, and probably the best way would be to make a checkered pattern using a cutting wheel. Make the cuts about an inch deep, then with a hammer, break the chunks off. You can do this a few times until you reach your desired elevation. Then, use a grinding wheel to smooth the surface and re-seal it. The difficulty of this will be if you have rebar or other steel in the top few inches of the footing, as concrete blades don't do well with cutting steel. And, you wouldn't want to leave any steel exposed as it will oxidize and cause the concrete to fail...
Let's SEE,,, ELECTRIC GRINDER??? with RUNNING WATER ,,,,ALL OVER the CORD.. GOOD FOR YOU man..
The "rubber coated" chord! :-)
I have to say you should wear eye protection. I get it you didn't want to wear a mask as you was recording. Running water next to a grinder is just life hazard.
Agreed. Water and electricity - what could possibly go wrong? tee hee.
*Man watchout your outlet & grinder getting wet!*
Where i get this diomond wheel please give me the address
And it last 1 disc after 30 concrete slabs ?
Nice work !
Yeah, I was pretty impressed with the longevity of these discs. Grinding wet is certainly the way to go - it probably extends the life of the disc by a factor of two!
what grinder is that amps?
It's a Ryobi, I believe 7 or 8 amps. It was too small though, and burned out eventually. Now running a Dewalt 12 amp which is much better. You need to keep the dust etc out of the grinder as well. It really mucks it up.
Wear the proper mask with correct cartridges when grinding anything, concrete, steel ferrous and non ferrous, nothing should be chanced!
i like the idea, but honestly, a wet grind with mains power tools such as this is suicide!
be carefull please water and electric together
Dude. You're freaking crazy, you should use at least a dust mask and a fan to avoid breathing that crap. That silica dust may be (well, no may be, it is) extremely dangerous for your lungs even for that small amount of time.
uhhhh MASK?????
How about some safety glasses dude! Sets a very bad example