Has anyone used Recycled Asphalt.

[DoubleChevron]

Hi Guys,

Its been really crappy and muddy around here with all the rain/builders/machinery onsite for the last 6months. Over the last few weeks I managed to put down about 80squares of paving (so we can now get inside without gum boots on)


https://www.aulro.com/afvb/attachments/general-chat/154254d1568691419-has-anyone-used-recycled-asphalt-drive2.jpg

The drive itself is fine ... but gets very dusty in summer. It would have first been put down in the 1980's so will be compacted from decades of use.

https://www.aulro.com/afvb/attachments/general-chat/154255d1568691419-has-anyone-used-recycled-asphalt-drive3.jpg

Yes I am aware the paving looks like bugger all.... that stuff took me 10days working 10hour days to get down ( 8 meters of road base compacted, 5 meters of blue metal dust compacted, nearly 3000 4.6kg pavers ... also compacted down). My wife got home (as she was away) and said "where is the rest of them ... is that [bighmmm] [bighmmm]". Sigh....

Anyway, around the pavers is gravel/sand mix that doesn't compact, so it needs to be dug away (it was all I had on hand) and more roadbase build up to the level of the pavers. All that mud there .... I want to gravel over that....

https://www.aulro.com/afvb/attachments/general-chat/154256d1568691419-has-anyone-used-recycled-asphalt-drive4.jpg

And gravel down here. It has all been cut for the extension here. So is VERY soft (not to mention I cut down 11 massive pine trees and ground the stumps below ground level right here. The roots you hit are upto 30cm thick!

I usually just get the guy that lives up the road to deliver a truckload of aggerage as needed, but he's that busy its taking months just to get a single truck load delivered. So today I rang the local sand/soil place:

$352 for a truck load of 10-14mm blue stone (probably the best, roadbase is very dusty over summer though it packs well).
$286 for a truck load of recycled concrete stuff (can be good or crap dependant on where it is sourced from .... and often full of metal that stakes your car tires).

He suggested he is selling a lot of recycled asphalt ... and has been delivering all over the region. Has anyone tried this ? I googled it and it seems to lay down dust free and pack quite well. Its $440 a truck load .... Oh truck load is about 8meters.

I'm thinking a couple of truck loads of crushed concrete to cover all the mud and slush .... then some recycled asphalt over the top.

Has anyone tried recycled asphalt? If iit hasn't worked out well for them I'll just go with 10mm bluestone. If it really is dust and mud free as suggest online I'll run it down the length of the driveway.

seeya,
Shane L.

[roverrescue]

I’d be checking with a local landscaper but I have heard that recycled ashpalt even when well compacted has a high propensity for hot pick-up
Which in your situation may make a mess of your very hard worked pavers?

Crusher dust with a bag of cement per 4-5 m2 raked through prior to compacting and then watered down can make a pretty good low dust drive if not too much traffic or speed on it?
If you can get 8m2 crusher for $286 and spread it 10cm thick (80m2) then run 20 x $7 bags of cement your looking at the same price as asphalt with only a little bit more labour ?

I used the above for a short section of drive in Cooktown which use to be a creek so in the wet most aggregates washed away ... concrete would have cost too much ($400+ a cube up there)
Anyways it lasted more than 5 years with no real upkeep needed and was largely dust free?

Steve

[roverrescue]

Oops just saw $286 was for crushed Crete
Wild have to work out the price delta on crusher dust but it’s an option to put in the mix

[RANDLOVER]

I know how you feel Shane, I hate mud!

The pavers look like a nice job, although I can't tell from the pic's if you have haunched them in, i.e. put a sort of shoulder of cement around the edges, which it pro'ly needs for vehicle traffic. YouTube (https://www.youtube.com/watch?v=6VJ8lm_Y9Uk)

My mate put down Rec-Asphalt for his driveway about 10 yrs ago, and it has been fine, although it is more of a 3-way turning area, and under tree cover so I can't speak as to hot pick up and dust.

I know putting some cement in with crusher dust can firm it up nicely, as the guy who did my approx. 1m high retaining wall did that as a footing for it and it hasn't moved.

You're right about metal in rec-concrete, I've seen bits of reo in it!

[V8Ian]

Consider CRB, properly rolled it lasts well.

[Phil B]

Recycled asphalt (or RAP) is the waste end product from asphalt road resurfacing. It is the profilings or chunks of asphalt that come out of the asphalt profiler or grinder.
Asphalt is the same as concrete except it uses bitumen as a binder instead of cement but the base product is the same- quarry stone.
The size of the particles depends if the profiler was a course drum (particles are about 25mm dia) or fine drum (about 10mm dia)
Recycled asphalt is better than recycled concrete in your application IMO. It doesnt produce dust the way recycled concrete does and doesnt wash away either.
It can be compacted down to form a hard surface but will never look like asphalt. It will always be a gravel.
I spread RAP on my gravel driveway about 10yrs ago and it is still stable and not muddy during rain.
You will need to check with your local council if they will allow you to place it though. Some "green" councils dont like the bitumen.

Hope this helps.

[DoubleChevron]

Thanks Guys,

I may just give it a go. worse case is we'll end up with gravel over the top if it doesn't work out. As for the council, not in a million years when I tell that bunch of hypocrites anything :)

Oh yeah, the pavers do have edge restraint. Concrete about 2/3rds of the way up the side of the 80mm paver. They are commercial grade heavy zigzag pavers. The paving job is far from perfect (a million miles from it infact). But it is sound and adequate .... and we can walk inside now without walking mud everywhere :) I've found the kids like the large level('ish) area to play netball on too.

seeya,
Shane L.

[Redback]

Thanks Guys,

I may just give it a go. worse case is we'll end up with gravel over the top if it doesn't work out. As for the council, not in a million years when I tell that bunch of hypocrites anything :)

seeya,
Shane L.

Just be careful Shane, they will make you dig it up as a minimum check out their green policy, it's usually on their website.

[DoubleChevron]

Just be careful Shane, they will make you dig it up as a minimum check out their green policy, it's usually on their website.

Yep, I'll get right on that .... You have obviously never tried to deal with our council. The only thing they are capable of is trying hide the next "funded fact finding trip" overseas. Same deal with the trees that have, er, "fallen down" that were to close to our house. Not in a million years would I care what the council thinks.

To put it into perspective, I live in Ballarat. if I dig down 3mm ... we break through the "top soil" and find the broken up granite and clay. ie: the entire area is leveled out mullock heaps. The only thing that grows in the area is weeds, radiata pine and blackberry/gorse. Don't get me wrong, its a lovely area, but we are not talking protected native bushland here. We are talking a 100+ year old mining site :)

I ripped a drain down our fence line last year... We now have a pile of jagged bits of granite perfectly washed and shiny at the end of it. We must have had one of those horse drawn rock crushers located at the corner of our block.

eg:


https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTkF8ebRTp2jfEitBGp7MzVP_6ugPa8_ Cfbqwx-xxl6K652_44BgA


They are broken down to pea sized rocks. but still sharp and jagged like freshly smashed rock.

seeya
Shane L.

[Saitch]

Careful, Shane, or you may end up "Heritage Listed" and you don't want that![biggrin]

[DoubleChevron]

Careful, Shane, or you may end up "Heritage Listed" and you don't want that![biggrin]

Now that is just being cruel for no reason [bigsad]

[Bigbjorn]

In New Zealand they truly recycle asphalt. Pick it up and cook it again and reuse it as road surface.

[Saitch]

Now that is just being cruel for no reason [bigsad]

I don't understand this?
I'm serious. Once you're heritage listed you have not much say in anything to do with your property. Well, in Queensland. Not sure about other states.

[cjc_td5]

They do here too. Its just not usually commercially viable to do it, unless you are very close to the plant. There are also quality control issues as you don't know exactly what stone grading etc is going in via the old asphalt.
In New Zealand they truly recycle asphalt. Pick it up and cook it again and reuse it as road surface.

[V8Ian]

Careful, Shane, or you may end up "Heritage Listed" and you don't want that![biggrin]
Or worse, the property could be heritage listed. [wink11]

[Redback]

They do here too. Its just not usually commercially viable to do it, unless you are very close to the plant. There are also quality control issues as you don't know exactly what stone grading etc is going in via the old asphalt.

They do it in NZ probably because they actually care about their environment unlike here.

[Phil B]

In New Zealand they truly recycle asphalt. Pick it up and cook it again and reuse it as road surface.

We do in Australia as well but the recycled asphalt added is only about 25% of the new asphalt produced thus the surplus.
One of the problems is that profiled asphalt ranges in size from dust to larger (30-50mm dia) particles. New asphalt requires a single size aggregate (7, 14, 20mm). The other sized particules are waste.
Also certain applications dont allow any recycled products but the trend is to use shredded car tyres, old plastic oil containers and recycled ashalt as much as possible with some very good results.

[DoubleChevron]

They do it in NZ probably because they actually care about their environment unlike here.

We can't really compared to other countries unless they are a similar size. Just look at bottle recycling for example. How can trucking and shipping glass bottles over the country (at which point they will send to landfill entire truck loads if a single piece of ceramic is found within it) as "environmentally friendly". Most of the recycling schemes are "feel good" ridiculous crap implemented by greeny nutters (or people that intend to make profits out of it). Just look at the insanity of shipping our "recycling" to a 3rd world country. What fruitloop came up with that idea. How in the hell can shipping rubbish around the world be "good" for the environment [bighmmm].

I find it highly unlikely that asphalt will be sent to landfill when torn up. it will be dumped in the local areas as driveways/etc.

seeya,
Shane L.

[Bigbjorn]

They do it in NZ probably because they actually care about their environment unlike here.

They started doing this to help reduce reliance on petroleum imports and help their foreign trade imbalance.