Weeds through engineered pavement layers
Weeds through engineered pavement layers
(OP)
I have a bit of a novelty situation.
On one of my sites, pavement layers (crushed stone) were constructed for a new asphalt pour. The asphalt was delayed many months, and weeds have now cultivated on the upper crushed stone layer- see attached photograph.
Construction plant is no longer available on the site.
What is the best way of preparing my site for an asphalt pour? The only way I can think is to remove the weeds by hand, poison and then rip and re-compact the upper layer.
Any suggestions would be appreciated- I'm obviously looking for the most economic option and I don't think the weeds are dense enough to justify removing the upper layer.
Thanks in advance,
Mike
On one of my sites, pavement layers (crushed stone) were constructed for a new asphalt pour. The asphalt was delayed many months, and weeds have now cultivated on the upper crushed stone layer- see attached photograph.
Construction plant is no longer available on the site.
What is the best way of preparing my site for an asphalt pour? The only way I can think is to remove the weeds by hand, poison and then rip and re-compact the upper layer.
Any suggestions would be appreciated- I'm obviously looking for the most economic option and I don't think the weeds are dense enough to justify removing the upper layer.
Thanks in advance,
Mike
RE: Weeds through engineered pavement layers
I would just roll the site again prior to asphalting
RE: Weeds through engineered pavement layers
Thanks for your input- that's exactly what I was hoping to hear, and agree, the rip and re-compact now seems excessive.
I'm wary as hell of trying to pull weeds from a dense pavement layer- I envisage almost all of the roots getting left behind, so I'm hoping to hear from someone who has actually tried this before (I can't be the only one???).
Maybe the weed roots have no effect on the final pavement performance (I don't know much about their root systems)- I don't want to be pedantic about it, but I also don't want an asphalt Contractor blaming my roots on his shoddy asphalt performance!
All the best,
Mike
RE: Weeds through engineered pavement layers
Maybe contact landscaper and get their opinion.
RE: Weeds through engineered pavement layers
Then do as you proposed.
RE: Weeds through engineered pavement layers
Agree with the recommendations and will go ahead with it.
All the best,
Mike
RE: Weeds through engineered pavement layers
RE: Weeds through engineered pavement layers
Mike
RE: Weeds through engineered pavement layers
RE: Weeds through engineered pavement layers
I was far more worried about the roots that are left behind after cutting / torching- I doubt it would affect the asphalt performance, but I thought I'd better have at least the larger weeds hand-pulled to be sure of it (last thing I want is a mat of roots beneath the asphalt).
Lastly, I should have qualified that in South Africa, our daily labour rate is approximately $13, so it is still possible to do things by hand that might not be possible in first world countries...a herd of goats, now that sounds more like it!!!
All the best.
Mike
RE: Weeds through engineered pavement layers
Mike McCann, PE, SE (WA, HI)
RE: Weeds through engineered pavement layers