Chemical, Expansive Mortar, Demolition Grout 11 Lb. (5 kg) [Type 2 (50°F to 77°F)], Professional-Grade Soundless Stone Cracking Powder for Rock Breaking, Concrete Cutting, Excavating

split a 3ft diameter rock - drilled 12 - 3/4" holes and this quik lime worked perfectly.

Great for breaking rocks where you can't blast and where heavy equipment and mechanical breakers aren't an option.

I have some large rocks in my yard that I would prefer to get rid of. They're buried and stick up just enough to hit the blades of my lawnmower. I need to break off enough to get them below ground level at least.That's where this stuff comes in. I got some diamond bits for drilling stone with my angle grinder, and then I'll make up some of this cement and pour it into the holes. It will be a lot cheaper than having professional earthmoving equipment come to dig them out.