Hecateh

Resin bound

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If you are going to do this, use crates to contain the stone and only do it on a straight run.

 

My first house the developer (or the planners) decided resin bonded stones on the private road and parking spaces would be a good idea. At the point where the road turned, the stones just got scuffed off in no time leaving two bare strips where the car wheels went. The builder re did it twice and both time it did the same. I would have MUCH rather just had a tarmac road.

 

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If I was going down the resin route then I would want a real level sub base that wouldn't move any where so would go with either concrete or tarmac. 

How long will the plastic grid hold up to traffic before you end up with track marks from your car wheels???

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I believe the normal way to do it is wit a tarmac sub base. As it is so expensive I don't think it is worth skimping on the preparation as you don't want it starting to crack and fail in a few years.

 

It is a bit of a mystery to me how it is classed as permeable, because I assume that rainwater permeates the stones and resin at the top then hits the tarmac and runs straight down it, maybe just the fact that the resin bound top layer slows down the water is enough to get it classed as a permeable surface.

 

Key thing for me is no weeds and maintenance  Our current block driveway constantly has weeds, has sagged under weight and also many of the block look in need of replacement after 14 years.

 

Interestingly the road that my house is on is also built from block paving yet there are few weeds and it has held up much better, I don't know what the difference is. They were both laid by the same people. I am guessing the main road has a tarmac or concrete base under the blocks and this makes the difference.

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37 minutes ago, AliG said:

I believe the normal way to do it is wit a tarmac sub base. As it is so expensive I don't think it is worth skimping on the preparation as you don't want it starting to crack and fail in a few years.

Used to have to have tarmac or concrete base but the company I linked to gives an 18 year guarantee using the cellular grid - obviously this is only if you have their contractors to install it so they have control but it shows it can last.  I'm retired and live alone so it won't get a great deal of wear.

37 minutes ago, AliG said:


It is a bit of a mystery to me how it is classed as permeable,

That's why I need to have it done on the hardcore - in addition to cost

 

37 minutes ago, AliG said:

Key thing for me is no weeds and maintenance  Our current block driveway constantly has weeds, has sagged under weight and also many of the block look in need of replacement after 14 years.

They say minimal weeds  and should be pressure washed annually - also no fade

37 minutes ago, AliG said:

 

Interestingly the road that my house is on is also built from block paving yet there are few weeds and it has held up much better, I don't know what the difference is. They were both laid by the same people. I am guessing the main road has a tarmac or concrete base under the blocks and this makes the difference.

I would guess so too - or just a thicker layer of hardcore

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4 hours ago, ProDave said:

If you are going to do this, use crates to contain the stone and only do it on a straight run.

 

My first house the developer (or the planners) decided resin bonded stones on the private road and parking spaces would be a good idea. At the point where the road turned, the stones just got scuffed off in no time leaving two bare strips where the car wheels went. The builder re did it twice and both time it did the same. I would have MUCH rather just had a tarmac road.

 

bonded - the resin is spread on a solid base and the stones are scattered on.  Resin bound are mixed, with all stones coated prior to laying - much stronger result

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1 hour ago, AliG said:

It is a bit of a mystery to me how it is classed as permeable, because I assume that rainwater permeates the stones and resin at the top then hits the tarmac and runs straight down it, maybe just the fact that the resin bound top layer slows down the water is enough to get it classed as a permeable surface.

 

The tarmac is permeable in my case. Permeable tarmac has been around for quite a while and is used on parts of some racing circuits where water lies.

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I'm having mine laid as I type -  just had the resin bound/bonded discussion with the contractor.

 

He's amazed that architects interchange the two when they are quite different - bound is permeable and the bonded is not. 

 

Spec is pretty much same as Peter. We've laid a block perimeter to enclose the resin and have a substantial sub base, competed in layers, before the permeable tarmac and resin is laid. Our landscaper did all the prep work.

 

Very surprised at the speed. Our H shaped drive is about 250m2 and the tarmac was down and level in half a day. They're back today doing the resin and after an hour have already done about 20%. 

 

They're using a specialist mixer to blend the resin, aggregate and sand (looks like a candy floss machine) as he says standard bell mixers don't mix as well and the resin collects at the bottom. Hand troweled finish and a dusting of powdered glass for grip and sparkle!

 

Cost wise (and these are SE prices), tarmac is £25/ms and the resin bound gravel is £51/m2, although we've gone for a very light colour which necessitates more expensive clear resin. Darker colours can use the cheaper yellow resin and are more like £30/m2.

 

Like any high value service, there are lots of chancers in the game (glorified tarmackers) so we were careful to get a good recommendation and check the work of our guy. As we're a big job - he has about 8 lads on site right now so it will get all laid in a single day with no joins.

 

For the bel mouths, we're going for blocks (to match the perimeter) with the gates as a transition point between the two materials.

 

It's the final big spend of the build but a great note to end on as it looks spectacular.

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On 20/10/2017 at 16:28, PeterStarck said:

The tarmac is permeable in my case. Permeable tarmac has been around for quite a while and is used on parts of some racing circuits where water lies.

 

Same for us - I understand that it's not as hard wearing as the impermeable variety but as a base layer its fine.

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All done - just need to keep cars off it until we get the entrances paved next week.

 

Then I can render wall, hang gates, plant hedge, turf front etc... I keep telling myself that we’re almost done 🙄

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