Driveways & Paving

Urgent - 3 layers driveway dug for pipe

Anonymous user 09/03/2024 - 2.31 PM

Hi I needed to fix the plumbing in the house, upgrading the pipe from main to house. Unfortunately, that pipe was going under the driveway. The company I hired decided to dug the driveway right in the middle to install the new pipe. They broke through 3 layers: 1 first sand/cement mix (about 2/3 foot), 1 layer or concrete (about more than 1 inch) and a layer of slabs, before digging the clay. In the end, what they did is put the part of the extracted material back into the hole (all mixed, pieces of concrete/clay/cement). I estimate roughly 65-70% went back in - the rest being in bags. Then they reused about 70% of the slabs leaving large patch of concrete here and there. I believe they did a 2 inches concrete layer on top of what they put back. Can someone comment this? Will this sink? will the rain go through? Any problem I should foresee in the short/mid-future (6M/18M/3Y)? Thank you very much in advance for your feedback & answers! Answer to questions below: - The quote wasn't detailed, and for personal reason, it was complicated to delay to acquire the information in time. - They compacted manually by impact (that is without any tool such a rammer) - Note that the pipe replacement was necessary.