Dexpan Expansive Demolition Grout 11 Lb. Bucket for Rock Breaking, Concrete Cutting, Excavating. Alternative to Demolition Jack Hammer Breaker, Jackhammer, Concrete Saw, Rock Drill (Type 1, 77-104° F)

Used successfully to break up some large boulders in the garden. Did require some hard work to drill the holes to accept the grout but got there in the end.

This stuff is incredible. I was skeptical at first but am very pleased. Tried it on a basketball sized rock in an annoying place on the driveway before I do my big project. Drilled a 4” deep x1 1/8” hole hoping to just blow the cap off the rock so I wouldn’t hit it with the tractor while snowblowing. Came back next day and it was in three chunks! Very pleased. Note that instructions recommend pouring it first thing in the morning, so it has a chance to work during its “critical eight hours“ during the heat of the day. I was too cheap to buy a 1 1/2” bit, got the 1 1/8” for half the price. Seems to be working fine in the limestone I am dealing with. VERY HAPPY with this product. It is allowing me to turn a skidder trail into a road passable by cars and minivans. I have fractured a couple rocks and carefully blown the top 8” slab off others just by changing my techniques. WISH I NEW ABOUT THIS STUFF YEARS AGO!?!?! Why doesn’t Dexpan tell people about their product. BE PATIENT! Results after 48 hrs is always better than 24

We expected to demolish the colomb fadter as show in the video but it give 10% only

I bought this product and was questionable about how effective it would be. I used it on a 30"x 60" concrete step that had been in place for approximately 54 years (no rebar). The videos I saw of how to use the product indicated you would see cracks appear anywhere from 4 to 6 hours. However, none appeared and when I looked out the next morning nineteen hours later there was still no signs of any expansion. Checking 4 hours later at the 24 hour mark as the directions indicate, still no cracks. I was very disappointed and tried to drag the block with my Kabota to no avail as it was just too large. I ventured out 7 hours later to see what my wife and her sister were up to and they indicated that indeed the steps had cracked in half. Bottom line, be patient. If you follow the directions with an eye on the temperature and I was right on the borderline of it being too cold, also the depth of my holes were a little short of what the directions call for....the product works wonderfully. I would highly recommend it. Always wear a dust mask as the powder is very fine and blows easily in the wind. Be sure to use the correct amount of water and clean up is also a breeze. I completed four holes approximately 18 inches deep and could have completed perhaps two more as a guess so make sure you have sufficient product for your job.

I needed access to my foundation but I had a massive rock next to it (almost touching the wall). The part that is visible in the pictures that I needed to break was about to 2 feet high and slightly more than 3 feet wide. I tried everything I could think of but I only made a dent in it. I broke concrete before and it fells like butter compared to this rock. I saw the Dexpan product. I wasn't sure I really believed the results could be as good but it was my only option left. I ordered it on Amazon and the next day I rented a rotary hammer with a 1 3/8 x 18 inches drill bit (they didn't have the 1 1/2 as recommended by Dexpan). I drilled the rock and then I filled the holes with Dexpan around 7 PM. I was really anxious and the next morning, as soon as I woke up I got out to see the rock, afraid it would still be intact but a miracle happened, it was completely cracked. It was cracked all the way down to the bottom. If you follow the instructions it really works. Highly recommended product! 100% satisfied! Hopefully I won't need it again in the future but I need to, I will not hesitate to buy again.