Installing a concrete in ground anchor for a motorbike
Discussion
When I have passed my bike test, I'll be looking at getting my first bike. I'd like to try and get the security for it sorted in advance; at least some good will come from not passing my test first time then!
I helped my uncle build an external garage at my previous house; all of it from digging the trenches for the foundations through to putting the roof felt on with bitumen. I remember when we laid the concrete floor, that before doing so, we put down a plastic sheet "membrane" to stop damp coming up through the concrete floor.
I've been thinking about a concrete in anchor for the house my wife and I now have. It's an internal garage and I assume that underneath the concrete floor, will be a few inches of concrete in depth, followed by a plastic membrane and then hardcore/soil.
So the question is; surely if you dig a deep enough hole for a concrete in anchor, you will have to dig through/puncture the plastic membrane? I would have thought that this would be undesirable?
Any thoughts on this? Obviously a bolt down anchor would be easier, but I can't help wonder about their effectiveness.
The anchor I'm thinking of is the YAnchor - so nothing is protruding above ground level, therefore nothing is vulnerable to attack aside from the chain and padlock.
S
I helped my uncle build an external garage at my previous house; all of it from digging the trenches for the foundations through to putting the roof felt on with bitumen. I remember when we laid the concrete floor, that before doing so, we put down a plastic sheet "membrane" to stop damp coming up through the concrete floor.
I've been thinking about a concrete in anchor for the house my wife and I now have. It's an internal garage and I assume that underneath the concrete floor, will be a few inches of concrete in depth, followed by a plastic membrane and then hardcore/soil.
So the question is; surely if you dig a deep enough hole for a concrete in anchor, you will have to dig through/puncture the plastic membrane? I would have thought that this would be undesirable?
Any thoughts on this? Obviously a bolt down anchor would be easier, but I can't help wonder about their effectiveness.
The anchor I'm thinking of is the YAnchor - so nothing is protruding above ground level, therefore nothing is vulnerable to attack aside from the chain and padlock.
S
Edited by Sossige on Monday 5th May 18:27
I bought an Almax chain with Ph'ers discount. I also got a hardie ground anchor which is truely excellent
http://www.almax-security-chains.co.uk/product.asp...
http://www.almax-security-chains.co.uk/product.asp...
If your garage is integral ,
then it is likely you will find 150mm of concrete to the floor slab.
Its not a requirement to have a damp proof membrane ( dpm ) to a garage , just good practice , so hopefully you will have one ,
but not encounter it in your preperations for the ground anchor , I would have thought that bolts sunk into 150 of concrete is as much as you can sensibly do .
then it is likely you will find 150mm of concrete to the floor slab.
Its not a requirement to have a damp proof membrane ( dpm ) to a garage , just good practice , so hopefully you will have one ,
but not encounter it in your preperations for the ground anchor , I would have thought that bolts sunk into 150 of concrete is as much as you can sensibly do .
Edited by Busamav on Monday 5th May 19:38
Busamav said:
If your garage is integral ,
then it is likely you will find 150mm of concrete to the floor slab.
Its not a requirement to have a damp proof membrane ( dpm ) to a garage , just good practice , so hopefully you will have one ,
but not encounter it in your preperations for the ground anchor , I would have thought that bolts sunk into 150 of concrete is as much as you can sensibly do .
Thanks, so you are suggesting that with an internal garage, the bolt down anchor is the best that I can do without piercing the DPM?then it is likely you will find 150mm of concrete to the floor slab.
Its not a requirement to have a damp proof membrane ( dpm ) to a garage , just good practice , so hopefully you will have one ,
but not encounter it in your preperations for the ground anchor , I would have thought that bolts sunk into 150 of concrete is as much as you can sensibly do .
Edited by Busamav on Monday 5th May 19:38
With the right bolt-in ground anchor you'll be fine - you just need to choose where your weak point is going to be. It's probably going to be the chain even with an Almax (considering the thickness of metal of a lot of ground anchors) so I wouldn't worry greatly about which anchor you have. Just make sure you hammer in the ball bearings on a bolt in ground anchor, so they can't just unscrew it...
G Man said:
I bought an Almax chain with Ph'ers discount. I also got a hardie ground anchor which is truely excellent
http://www.almax-security-chains.co.uk/product.asp...
second that, got the series 4 19mm chain. monster bit of kit. not cheap but will last many many years. main reason I bought that over fitting a alarm. cheaper in the long run and the alarm only made a £40 difference a yearhttp://www.almax-security-chains.co.uk/product.asp...
surfsofa said:
Depressing reading in MCN last week. Apparently anyone with a 'just cause' can obtain your name and address from the DVLA by quoting your number plate. The DVLA will charge them the pricely sum of £2.50!
How this can be right completely escapes me.
No, that is plain bull, not anyone can just get your details from your number plate. Only certain places and with certain reasons can. I suggest you start reading here - http://www.dvla.gov.uk/foi/relinfo.aspx rather than the "sensationalist" press such as MCN.How this can be right completely escapes me.
I've got a question about that Hardie Secure anchor. With all of the other bolt down anchors, you should hammer in ball bearings into the allen key head so that the anchor cannot be easily removed.
How does the Hardie anchor protect against this? It looks like a metal cover goes over the top of the bolt, but presumably that metal cover can be easily removed at a later date?
How does the Hardie anchor protect against this? It looks like a metal cover goes over the top of the bolt, but presumably that metal cover can be easily removed at a later date?
Sossige said:
I've got a question about that Hardie Secure anchor. With all of the other bolt down anchors, you should hammer in ball bearings into the allen key head so that the anchor cannot be easily removed.
How does the Hardie anchor protect against this? It looks like a metal cover goes over the top of the bolt, but presumably that metal cover can be easily removed at a later date?
Not easily, no. It has like a "coined" edge cut into the bit you hammer over the bolt. Its basically too big for the hole so is a really, really tight fit. The only way I can see it being beaten is by drilling out the protective cap to then extract it as there is no way to gain purchase from the sides of it once hammered home. Additionally, when a chain is in use it would go someway to blocking access to that cap.How does the Hardie anchor protect against this? It looks like a metal cover goes over the top of the bolt, but presumably that metal cover can be easily removed at a later date?
Easier to attack the chain or lock than the anchor IMO.
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