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fragasaurus

05:54AM | 05/27/03
Member Since: 12/01/02
93 lifetime posts
Bvlawn
I'm looking for the most effective way to get rid of some of the exposed rock in my yard. The pieces of exposed ledge that I want to remove are not too big. They may be only be 5 to 20 inches in diameter and 5 inches above the surface.

I've seen people with carbide blades on a circular saw make several cuts across the stone and then break the ridges with a sledge hammer. Is this the easiest approach? Can I use a standard circular saw assuming the size and depth are compatible?

Any thoughts would be appreciated.

treebeard

01:45AM | 05/28/03
Member Since: 01/14/03
265 lifetime posts
I'm sure that you realize that the area you've described, being just the area you can see, is the tip of the iceberg. The bulk of the beast is below grade, and as you expose more of it to bring it down below grade, it will probably get bigger...a lot bigger.

Before you start testing the waters of rock removal technology, you might want to expose the rock down to the level you wish to see it at, and then measure the area. Guaranteed it will surprise you how big it might get.

The methods and effort you might be looking at to remove the rock will depend on what type of rock it is. If it's granite, you're looking at quite a project as you will either have to use power tools or feathers and wedges in holes you'll need to drill. If it's a softer stone, you may be able to simply wack away at it with the sledge hammer and break it, piece by piece.

fragasaurus

03:08AM | 05/28/03
Member Since: 12/01/02
93 lifetime posts
I am certain that what I am seeing is the tip of the iceberg. My intention is to get enough of what is exposed flattened so I can mow the lawn without wrecking my lawn mower blade. I don't even care if it remains exposed. I just want it lower.

I will try several different methods. Would I use a masonry bit to drill a hole or is there something else needed for hard rock?

Thanks.

eddi3e

05:28AM | 05/29/03
Member Since: 02/12/03
3 lifetime posts
fragasaurus,

i'm in the same boat also, i have a couple of large granite boulders protruding throughout my yard (about 6 - 9 inches above the soil/sod line).

would like to hear what worked best for ya, probably won't tackle this one until next spring.

fragasaurus

06:25AM | 05/29/03
Member Since: 12/01/02
93 lifetime posts
I'll be going at it with a diamond blade on a circular saw this weekend. Will let you know how it goes.

rothnh

05:56AM | 07/05/04
Member Since: 07/04/04
1 lifetime posts
I would like to see, one year later, how this solution worked. I likewise have the same protruding rocks and need a strategy to save my mower. Thanks.

fragasaurus

11:56AM | 07/06/04
Member Since: 12/01/02
93 lifetime posts
Funny you should ask. I've learned a lot in the last year but I never actually cut the rock in question. The cost of diamond blades to buy or rent was pretty hefty to warrant taking that route given that there was no guarantee it would work for me. The granite in our area is the hardest an excavator I spoke to has ever seen in 25 years.

1. For a few rocks I used a wrecking bar and was amazed at the size rock I was able to pry out of the ground. Rocks that weigh hundreds of pounds popped out without a problem. Leverage is a wonderful thing.

2. We just excavated for a foundation and in the process the 30 ton excavator made short work of the rocks that were in our way.

3. In my area (Western CT) we hired a guy to cut a door through 12 inches of concrete and he charged $450. That may be another option if you don't want to get the blade and do the work yourself. For us to rent the machine and buy the blade it would have cost about the same. The next guy we spoke to wanted $800 so maybe the first guy was a bargain.

Good luck.

BV002455

10:13AM | 11/01/13
why not drill 1/2" holes with a hammer drill and then tap in some wedges, that is what I am going to try, the hardest part will be drilling 5 inch deep holes in the granite boulders.
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