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Posted: Wed Nov 16, 2005 5:03 pm
by JennyW
I have an area which I had to put a surface on cheaply and so covered a porous membrane with some large gravel stones. They look fine, but to walk on it's like Brighton Beach (it's a thick layer) and to drive on very disconcerting - although noone has got completely stuck as yet.
Is there anything I can do to improve things - would adding some bags of sand help?
Posted: Wed Nov 16, 2005 5:14 pm
by danstan
JennyW wrote:I have an area which I had to put a surface on cheaply and so covered a porous membrane with some large gravel stones. They look fine, but to walk on it's like Brighton Beach (it's a thick layer) and to drive on very disconcerting - although noone has got completely stuck as yet.
Is there anything I can do to improve things - would adding some bags of sand help?
Jenny
Sounds to me like there isn't a decent sub-base down!!
Unfortunately i don't think there is a cheap way of rectifying the problem.
With a sufficient depth of MOT type 1 you will not get so much movement under foot!!
4 inches MOTtype 1 compacted and a thinner layer of aggregate on top
Dan
Posted: Thu Nov 17, 2005 8:26 pm
by Tony McC
Sand won't tighten-up loose gravel or beach cobbles - it just settles down to the bottom of the layer and makes it even easier for weeds to establish themselves.
Have a read of the Gravel Surfacing page for a fuller explanation of how and why this problem has come about.