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Coffee grounds ground into ground

Mix coffee grounds with gravel, pour on road
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There are many surface treatments for unpaved roads to keep the dust down. Most commonly salts, oils, or other compounds that draw moisture into road surface.

Used coffee grounds should work just as well.

a1, Mar 27 2021

gravel road dust prevention https://permies.com...el-road-dust-debris
One comments suggests a way of reducing dust on a gravel driveway: " Slowly introduce fine organics, [...] coffee grounds, unwanted clay, mouldy leaf litter, grass clippings, maybe rake in a bucket a day here and there." [xaviergisz, Mar 29 2021]

Not roads, but grounds ground into deforested ground https://inews.co.uk...search-shows-933014
[bs0u0155, Mar 29 2021]

Another use for coffee grounds in today's news https://www.british...st-forest-recovery/
Coffee pulp anyway. [AusCan531, Mar 29 2021]


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Annotation:







       This is pretty widely Baked I'm afraid.
21 Quest, Mar 27 2021
  

       That’s what I thought too - but can’t find any evidence for it. Find me a link that specifically mentions using coffee grounds to keep dust down on dirt or gravel roads, and I’ll buy you a cup of coffee.   

       Since I can’t those references myself, I figure I’m either not using the right search terms or there’s something wrong with the concept. Maybe it doesn’t work or isn't cost effective?
a1, Mar 27 2021
  

       Fair point, they use it for de-icing/grip on slick roads. For dust control, wouldn't the coffee itself just dry out and add to the dust? What properties are you thinking would make it better than oil or water being sprayed down?
21 Quest, Mar 27 2021
  

       Coffee grounds contain oils, absorb and hold water, and provide adhesion to keep the dust down. Just like existing products for unpaved roads - but with the advantage of being biodegradable stuff that usually gets discarded, unused to a landfill.   

       I don’t think it will dry out and become dusty itself, but that’ll need testing. My hunch though (from cleaning my coffee grinder) is that its oily and sticky properties are very persistent.
a1, Mar 27 2021
  

       Won't anyone think of the poor caffeinated vermicular life forms?'''   

       If I was ever homeless and broke again, God forbid, I could use my boots to scoop up a cup, if needed. I like. Those Mr. Coffee filters would filter out any dirt, methinks.
blissmiss, Mar 27 2021
  

       // poor caffeinated vermicular life forms?' // The coffee buzzed worms in our compost bin are the happiest you’ll ever meet, and we want to share the joy on a wider scale.
a1, Mar 27 2021
  

       Hey,
<holds up hands>
the spice must flow right?
  

       As this topic is EXACTLY in my wheelhouse I can confirm that many plant oils have been tried. Usually the problem is adequate and consistent supply. Corn oils, Canola Oils, Beet residue and even waste Cheese Whey have been tried.   

       If [a1]'s idea worked and saved someone's life, could we describe it as Coffee Bean An Angel?
AusCan531, Mar 29 2021
  

       // adequate and consistent supply // Supply shouldn’t be a problem. Coffee is the second most traded commodity in the world and most of it ends up in landfills.   

       AusCan531, how would you set up a test program for something like this?
a1, Mar 29 2021
  

       Reminds me of a sign I saw at a roadside cafe, "buy seven cups of coffee, get one free". Whenever I drove that road I used to keep a nervous look out for manic caffeine-high motorists.
pocmloc, Mar 29 2021
  

       //how would you set up a test program for something like this//   

       The usual way is to pick an unsealed road, grade and scarify uniformly then treat 1km with "a1 coffee grounds", another with magnesium chloride, another with lignosulphonate and leave a control section untreated. You could place dust monitors along side each section or survey the road levels later to measure gravel loss or, more simply, eyeball the results while vehicles travel down the road.
AusCan531, Mar 29 2021
  

       //oils have been tried. Usually the problem is adequate and consistent supply.//   

       Again, this is a problem that was solved, and then the wisdom of that solution lost to the mists of time. It's said that the first car seen by half of the world's population was a Land Rover*. If not the venerable 4x4, then perhaps a Royal Enfield motorcycle an Austin 7 or even a Raleigh bicycle equipped with a Sturmey Archer 3 speed**. If anything in the world is consistent, it's that old British vehicles drip oil. Of the few things my old dad is certain: if it isn't dripping oil, there's no oil in it. This would ensure a constant, traffic-proportional supply of oil to the road surface.   

       Here's where it all went wrong: In the post war era, Japan sought to build a motor industry and got it's hands on British motor vehicle technology by any means necessary, including by bribing motorcycle racers to disappear their 'bikes into vans around the back side of the circuit. They would disassemble and reverse engineer these machines, and thinking they knew best, they would "cure***" the inefficiencies such as the oil leaks.   

       As a result of people moving about the place in oil-tight Japanese machines, we now have a dust problem to solve.   

       *Believable in the past, clearly less true with every day that passes.   

       **You add a few drop of 3-in1 to the oil filler in the center of the hub and over time, the oil works its way from the epicyclic gearbox, out through the bearings carrying any contaminants with it. Any bicycle "mechanic" caught packing the wheel bearings with grease should be offered the choice between transport to Australia and a stout thrashing.   

       ***Even Rolls Royce were not immune to this, they obtained American automatic gearboxes back in the 30's, noticing some rough casting, they quickly polished the interior surfaces to the levels to which a Rolls customer would be accustomed. Then they didn't work properly.
bs0u0155, Mar 29 2021
  

       bun for old time's sake.
po, Mar 29 2021
  

       I owe xaviergisz a cup of coffee for finding a prior suggestion. I *knew* it couldn't be a completely new idea.
a1, Mar 29 2021
  

       just the one?
po, Mar 29 2021
  

       Just one. And I get to keep the grounds for my driveway.
a1, Mar 30 2021
  

       ^[a1] too freshly ground?
wjt, Apr 02 2021
  

       No, just one.
a1, Apr 02 2021
  


 

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