How much does 1 cu. mtr of pebbles weigh?

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How much does 1 cu. mtr of pebbles weigh?

Postby wiz » Fri Jul 07, 2006 9:13 pm

I am trying to buy some 20 - 40mm Cheshire pebbles for my garden. They are sold by the ton, how many tons are there in a cubic metre of said pebbles?
I'm bored with computers today so I will mostly be doing gardening instead.
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RE: How much does 1 cu. mtr of pebbles weigh?

Postby nordle » Fri Jul 07, 2006 9:37 pm

I would guess about 3/4ton in 1 cubic mtr, but this is based on nothing but a guess.

They are free from the beach you know ;)
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Re: RE: How much does 1 cu. mtr of pebbles weigh?

Postby MartyBartfast » Fri Jul 07, 2006 9:44 pm

nordle wrote:I would guess about 3/4ton in 1 cubic mtr, but this is based on nothing but a guess.

They are free from the beach you know ;)


I think there are laws requiring you to have a licen se to take sand/pebbles from the beach in bulk.
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RE: How much does 1 cu. mtr of pebbles weigh?

Postby towy71 » Fri Jul 07, 2006 9:57 pm

you can be jailed for taking pebbles from a beach so don't even think about it :P :P

and about one and a half tons per cubic metre as a genral rule
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Postby wiz » Fri Jul 07, 2006 10:02 pm

Er yes, I don't think I will go and steal any.

Although, I have been using 4 different council refuse sites to dispose of the several tons of old concrete path from my garden, one car load at a time. If I keep using one site it will look as though I am abusing the generosity of their providing a free disposal service. Or is that what I pay my rates for?
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Postby towy71 » Fri Jul 07, 2006 10:06 pm

carry on taking it to different sites else they will ask you to pay, I took some on a trailer and they said it was commercial so I would have to pay so much a ton, grrrr I already pay them 1200 pounds a year to live in my own house and they want more to take my rubbish, grrrrrrr :evil: :evil: :evil:
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Postby nordle » Fri Jul 07, 2006 10:28 pm

I wasn't seriously suggesting stealing from our coastline, its a barmy idea, the amount you'd pay in knackered suspension and 2MPG petrol on the way back would counter any saving made ;)
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Postby Wmsheep » Sat Jul 08, 2006 1:28 am

1cubic metre of gravel weighs about 2300 to 2400 kg

This I know as I used to be a civil engineer.

if in doubt, ask at the builders merchants, they`ll help you no problems.
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Postby Rhakios » Sat Jul 08, 2006 3:02 pm

General rule of thumb when estimating the weight/volume of aggregates is that 1cuft=1cwt, so 20cuft=1ton. It works better in imperial than metric and yes, I work in a builders' merchants.
That way, your cubic metre of pebbles will be about 1.75 ton. Rough measures work well enough in building, unless you're an engineer ;)
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Postby wiz » Sat Jul 08, 2006 5:31 pm

Thanks everybody. Now I can get it right within several barrowloads, that will do perfectly.
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Postby alloydog » Thu Jul 13, 2006 9:59 am

Hey, smash the concrete up real small, like, and take a couple of pockets full to the beach.
Casually empty the concrete bits onto the beach and refill your pockets with pepples.
Do that, maybe, a couple of times a day untill your garden is done...
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Postby wiz » Thu Jul 13, 2006 6:44 pm

Fiddling about in my pockets on Brighton beach will definitely get me arrested.
How long will it take to get 4 tons of pebbles from Brighton to Surrey, 2 pocketfuls at a time?
Answers to be sent on the back of a used fiver please. Thankyou.
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Postby Nigel » Fri Jul 14, 2006 8:54 am

OK, assuming your two pockets are each approx 3 inches wide and 6 inches deep, and can be filled to abut 3 inches without bursting (although you'll look very strange if they are trouser pockets !)... that's 0.03125 cu ft per pocket, so 0.0625 cu ft per trip.
Using Rhakios' figures, your 4 tons of pebbles will have a volume of 80 cu ft. Which means you'll have to make 1280 trips to get your 4 tons of pebbles.
Not knowing where in Surrey you are, I don't know how long each trip would take, but assuming you won't make more than one trip per day that's 1280 days... if you work during the week, that would mean 640 weekends, or in excess of 12 years.
Then add up the costs of 1280 day trips to Brighton...

... if I were you I'd just go buy the pebbles from Rhakios :D
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Postby 1slipperyfish » Fri Jul 14, 2006 1:37 pm

is it a trick question and the answer is the same as 1 m3 of feathers? :D
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Postby nelz » Fri Jul 14, 2006 2:22 pm

Of course it is, but it took someone with your unique perspective on life to spot this :)
"Insanity: doing the same thing over and over again and expecting different results." (Albert Einstein)
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