Midge wrote:
What exactly are we trying to deter here?

I can't help thinking that if I stuck a post at the end of MY drive,
I'm probably going to be the one who hits it sooner or later! If
you're going to the extent of concreting something in, why not a
gatepost/gate?
Just a thought....

Midge.





"Phil L" wrote in message
...
John wrote:
A friend has asked me to install a security post at the end of his
driveway, the sort that lay down flat and lock. The problem is his
drve is block paving right up to the tarmac footpath apart from a
drainage channel. I have explained to him that the pavers are only
a few inches thick and that the post will act as a very good lever
if somebody wanted to remove it (and the pavers it will be bolted
to)!! He says it is only really as a visual deterrent. My question
is are pavers hard to drill and will they split under the pressure
from a rawlbolt. The post has come with a tube of No Nonsense
Injection Resin and four 12mm x 100mm self cutting bolts. I
presume the resin will be a waste of time in this application and
that the bolts are too long, would this type of bolt (but shorter) be
better than a
Rawlbolt. How thick are pavers 2 1/2" or so?

The pavers are either 50mm or 60mm and neither are any use at all for
bolting things to - your friend may think it will be OK and act as a
visual deterrent but it won't - it won't last 5 minutes, the first
time someone brushes against it, it will be gone, given that the
pavers are really just bricks sat on a bed of sand.

To install it properly, you'll need to take up a few pavers and
concrete a patch about a foot deep and six inches square, the
easiest way to do this is to cut out the shape of the hole with a
grinder, so that the BP pattern isn't ruined, and concrete the hole
to the top of the pavers, leave for a week or so, then use the resin
and bolts as normal. for added strength, prior to casting the concrete,
knock a few
pieces of steel into the sides of the hole and leave protruding into
the void to be filled.


He's not concreting anything in, he's putting down a block of concrete, to
which a security post is attached, these posts can be easily lifted off by
the owner, via a key, or laid flat for driving over and then erected again,
to prevent their own car from being removed from the drive....if you'd read
the OP you would already know this


--
Phil L
RSRL Tipster Of The Year 2008