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Old August 2nd 11, 11:25 AM posted to rec.radio.amateur.antenna
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Default Rawbolt size for standdoff bracketts + ali pole

On 2 Aug,
"Dave" wrote:

Anyway back on topic the T+K bracketts are just the shape T at the top and
K shape at the bottom. One thing I forgot to add was the wall type it's a
'breeze block' construction or cemet block I think that's a cinder block in
the US, and the wall has a filled cavity.


I used 10mm resin anchors for a similar installation into brick, they have
the advantage of being less likely to crack the brick as compared to
expanding/rawl bolts. Breeze block is a dubious material, depending on it's
strength it may or may not be ok. If it is a dense concrete block you should
be ok, but I'd recommend resin type anchors anyway. I got mine from screwfix.
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BD
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Old August 2nd 11, 05:57 PM posted to rec.radio.amateur.antenna
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First recorded activity by RadioBanter: Mar 2011
Posts: 7
Default Rawbolt size for standdoff bracketts + ali pole



wrote in message ...
On 2 Aug,
"Dave" wrote:

Anyway back on topic the T+K bracketts are just the shape T at the top
and
K shape at the bottom. One thing I forgot to add was the wall type it's
a
'breeze block' construction or cemet block I think that's a cinder block
in
the US, and the wall has a filled cavity.


I used 10mm resin anchors for a similar installation into brick, they have
the advantage of being less likely to crack the brick as compared to
expanding/rawl bolts. Breeze block is a dubious material, depending on
it's
strength it may or may not be ok. If it is a dense concrete block you
should
be ok, but I'd recommend resin type anchors anyway. I got mine from
screwfix.
--
BD
Change lycos to yahoo to reply


Funnily enough I was just looking into chemical (resin) fixings - do you
have a link for the screwfix anchors you used ?

I have in the past used rawbolt's and indeed split the wall, well the ones
near the top, a low thump as I tightened them up. They seemed ok with no
problem afterwards with a 2m 10XY and a 88ele 70cm beams (this was my mum &
dads house!)

Dave



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Old August 2nd 11, 09:42 PM posted to rec.radio.amateur.antenna
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Default Rawbolt size for standdoff bracketts + ali pole

On 2 Aug,
"Dave" wrote:

Funnily enough I was just looking into chemical (resin) fixings - do you
have a link for the screwfix anchors you used ?

Looks like it was from Toolstation rathr than Screwfix (local branches are
next door to each other):
http://www.toolstation.com/shop/Screws+Fixings/Chemical+Fixings/Resin+Bolt+Stud+Fix+300ml/d90/sd1960/p11337

--
BD
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Old August 3rd 11, 10:17 AM posted to rec.radio.amateur.antenna
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First recorded activity by RadioBanter: Mar 2011
Posts: 7
Default Rawbolt size for standdoff bracketts + ali pole



wrote in message ...
On 2 Aug,
"Dave" wrote:

Funnily enough I was just looking into chemical (resin) fixings - do you
have a link for the screwfix anchors you used ?

Looks like it was from Toolstation rathr than Screwfix (local branches are
next door to each other):
http://www.toolstation.com/shop/Screws+Fixings/Chemical+Fixings/Resin+Bolt+Stud+Fix+300ml/d90/sd1960/p11337

--
BD
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Thanks, looks cheaper than Screwfix. Did you use a normal 'frame' with the
resin, I think some of them need a stronger frame because of the viscous
nature of the resin. Looking at the spec this resin is really strong stuff I
didn't realise how strong it was - about 2800Kg tensile strength on a 10mm
bolt !....

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