Type 1 mot track fail!!!???!!! - Viable solution required for track fail?

[michael lowe]

Firstly hello everyone in the cabin! Bit of a wet one here in Northumberland today! I have a client whos driveway I refreshed in the beginning of the year. Now I havent had any issues with the track each time Ive gone and done some other work on site but they are pretty upset with a certain aspect of the drive and this is due to their vehicle's wheels spinning and not getting a proper grip on the surface at a certain point on the drive, this being the steepest part of the slope, probably about a 15 -20% gradient.

The existing material before I refreshed their driveway was also Type 1 MOT Winstone supplied from a nearby local quarry in Northumberland. So I ordered the same material and applied this to the drive/track.

Before I got the Type 1 MOT delivered I got the previous surface graded in order to try and decrease the gradient a little. Now for the most part (about 90% of the track) its been a pretty successful job. But for this one section (the steepest part as mentioned previously) their vehicle just keeps tyre spinning.
I mean they make it up the drive but probably not easily and safely, although i would not say this to them,ive been thinking they need to invest in a vehicle with larger wheel circumference as my nissan navara gets up the driveway fine. their vehicle is one of those tiny peugeot hatchbacks with 14inch wheels.

I suppose they could argue that I should have built it purposefully with this in mind. As far as I was concerned it seemed fine. Clearly its not!! I just want to know what is the solution/s for this dilemma as one of them is a colleague of mine and it would be terrible to fall out with them over something this petty when we have enjoyed a wonderful relationship for many years! I am at a complete loss as to what to do and she has asked me now 3 times very sternly what am I going to do to solve the problem. and my honest answer is I don't know because I don't want to go and try and provide a solution only to find that it fails again! She has lost all confidence in me and has actually said she has had a number of enquiries that she would have sent my way without hesitation in the past but now she is loathe to do so because of this cock up with their driveway!!!???!!

Any Driveway/Track/Road Building Experts with experience of building sloped tracks with Type 1MOT, please if you are reading this I am desperate to hear from you.
Best Wishes
M

[seanandruby]

Silly question...did you compact the mot to refusal?
Sounds like it is their car being to light, put some weight in the boot. I reckon you have done your job.

[digerjones]

Unfortunately you have done your best with what you had. The type 1 I use has plenty of fines in it, so compacts well. Sorry can't help much. Unless you're using tarmac, concrete, block paving etc, your wasting your time

[GB_Groundworks]

Non bound surface in an area requiring high grip isn't going to work well especially if they ease off then apply power spinning the wheels. I'd have been temped to use a bound surface on the steep but such as concrete or asphalt.

If not you could try some 20mm-dust and consolidate with a ride on roller to absolute refusal not a once over with a whacker

The next alternative would be to use a geotextile stabilising grid or a plastic gravel grid and lay two strips say 600mm wide up the steep part then refill with 20mm to dust and that should offer more grip.


I use these guys for mine

http://www.matsgrids.co.uk/ground-....id.html



Edited By GB_Groundworks on 1477414960