Exploring before repouring
First off. It’s so humbling to us having our customers giving us their faith and trust, waiting for us sometimes for more than 6 months, knowing that we’re there to do the job to the best possible outcome, regardless of difficulties. No excuses, just getting the job done. If you’re one of these clients, like Rebecca and Colleen here, thank you.
We started out on this project last year with the client removing the existing pavers, that were already falling off and down the steep hill, by attempting to explore the concrete with floor grinding to see if there was an option of resurfacing what was there. After a few hours grinding and hitting what is possible the worst section of destruction I’ve come across, some being about 30mm in concrete depth, I pulled the pin and gave the bad news that it would need to be ripped out and new concrete poured, resurfacing was not an option.
I did not charge for the exploration grinding, simply provided a new price for demo and new concrete. Given our experience as well, after working out some heights, we managed to save out client quite a bit of money here, not having to demo all of the concrete because, as it was at a lower level than the surrounding grass, we could simply go straight over the existing concrete in places, avoiding the expensive cost of full demolition.
So we basically just removed several key sections that we needed to to account for cold joint entries, along with council regulations at the cross over.
The main problem we had with the project, throughout all the works, was the steepness of the hill. You can see it a little in the photos, but it is definitely a problem child at best. But, we’ve been here many times before, so certainly not an obstacle that was worrying us too much.
I decided to break this project down into 3 pours because firstly, I don’t like pumping exposed if I can help it. If I must, then that’s a different story, but if there is another option, we eliminate the risk of segregating the aggregates, keeping the mix as even right through in colours as we can.
Secondly, the steepness of the driveway saw me wanting to put in two main construction joints at the weakest spots, the first being the initial step from top pad to the steep section, the section being at the bottom of the steep section as it levelled out on the main road again.
These are both areas that always cause cracking and concern in an installation like this, so eliminating a monolithic hold there and replacing with a construction joint, is a far better outcome overall.
I went old school on this install. I brought a bobcat in to place the concrete up the hill for us as wheel barrows and truck access were impossible. Kind of brought back a few memories, having not used a bobcat for installation for probably 10-12 years…..was pretty fun watching the bobcat slipping up and down the hill as we went.
All in all, our client went with a Salt and Pepper variety of concrete in 75% black stone 25% white stone and we think it went really well with their house colourings.
Thanks Rebecca and Colleen. Again, your patience and kindness is very humbling. We appreciate your business entirely.