Roadway - Surfacing

[piggy steve]

Following up previous post, can any one offer advice re surfacing.
We have spoken to cemex rep who advises 20mm intermediate wearing course 50mm thick should be fine for the once a week lorry movement, my only concern is that we have a steep incline on a bend and I am concerned that the torque of the hgv will "ripple" the covering especially if he has put it in diff lock.

Also is it possible to lay with jcb and ride on vibrating roller or is it essential to lay with paver?

Prices we have had for the job are extreme to say the least.

[msh paving]

you can't lay it with a jcb...............the wheel will sink into it,and burn the tyres,where did you get that idea from,im shure when dave l comes along he will tell you the same,he will advise you on the spec too MSH

[Dave_L]

You can't lay with a JCB but a mini slew you can - with a suitably skilled operator.

50mm thick binder suitable for truck movements?? Hmmmmm I wouldn't spec that.

What size truck is going to run the surface weekly? What other traffic is likely to run on it?

Binder is NOT a running surface - although many do lay it and use it as such.

I'd prefer to see 70-80mm - plus at that liad thickness you could use dense road base, which willl be £3-4/ton cheaper for you. Make sure whatever you lay isn't too dry of bitumen - otherwise the surface will pick out.

Any corners, I'd chuck some bit-grit about to lessen the shear forces on the surface.

What sort of area/tonnage are you talking about here?

[Big Phil]

A roadbase has less bitumen so would less durable. if you use a binder course as a running surface many suppliers can produce an 'enriched' version with usually 0.5% extra binder to increase durability. not the best option, but the cheapest alternative to having a BC & SC.

20mm DBC can be laid 50 - 100mm.

[Dave_L]

On a 120t job such as yours Steve, I'd machine lay it - with over £6500+VAT's worth of material it's a big gamble to lay it yourself with a slew.

[piggy steve]

Thanks Dave,
Are there any spots that hire pavers in north yorks that you are aware of ?

Have hand layed base coat in past but the old farm hand didnt walk fast enough and his wellies started to smoke a bit (only kidding, but bet you can picture that in your mind)
Cheers
Steve

[GB_Groundworks]

just bite the bullet and pay a contractor, paving machines are complex beasts and you need to get it right or you ruin your road.

so its a false economy to try and do it your self.

[Tony McC]

Nobody in their right mind would hire out a paver machine to anyone not suitably experienced. As Giles says, there are BEASTS!

If you thought the best way to eff-up blacktop was to let the tinkers hand-lay it with their special red diesel pen oil, wait until you see mac laid by a paver in the hands of a novice!!! :laugh:

[Dave_L]

There are some surfacing contractors out there very short of work - who would be grateful for your job and rates are on the floor at the monent - you won't get it cheaper.

[piggy steve]

Thanks for the advice Dave, followed up and had a number of companys, including several off this site contact me.
Re doing the work, will decide carefully as been stung in the past, you pay to learn.
Cheers to all who have helped its been a "beast" working out which way to go!!!!!!!!!!!:rock:

[lutonlagerlout]

TBH "go with a pro" is the way forward especially when a fair bit of money is involved
fair enough for a DIYer to do a 20 m patio or drive ,but leave the big stuff to the man who can :;):
LLL