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Need cement for fastening screw into concerte

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Need cement for fastening screw into concerte _ 05-18-2008
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Posted by _ on May 18, 2008, 7:13 pm
Hi
I need to attach a metal bracket to a concrete wall, Ive drilled holes
for the screws, but I dont want to depend on screw tread alone, I'd
like to fill the hole with some type of cement then put the screw in.
Don't know what type is best. Any suggestions?? Thanks

Posted by Lou on May 18, 2008, 8:29 pm
> Hi
> I need to attach a metal bracket to a concrete wall, Ive drilled holes
> for the screws, but I dont want to depend on screw tread alone, I'd
> like to fill the hole with some type of cement then put the screw in.
> Don't know what type is best. Any suggestions?? Thanks

Although I don't know why you don't trust a good concrete screw,
my advice would be and epoxy resin, not concrete.
Lou

Posted by David Nebenzahl on May 18, 2008, 8:50 pm
On 5/18/2008 5:29 PM Lou spake thus:


>> I need to attach a metal bracket to a concrete wall, Ive drilled holes
>> for the screws, but I dont want to depend on screw tread alone, I'd
>> like to fill the hole with some type of cement then put the screw in.
>> Don't know what type is best. Any suggestions?? Thanks
>
> Although I don't know why you don't trust a good concrete screw,
> my advice would be and epoxy resin, not concrete.

Yes; after all, that's how structural anchor bolts are secured to
concrete footings and such.

Wouldn't a good Hilti anchor or equivalent work just fine without any
goop at all?


--
The best argument against democracy is a five-minute
conversation with the average voter.

- Attributed to Winston Churchill

Posted by Jeff Wisnia on May 19, 2008, 3:04 pm
David Nebenzahl wrote:

> On 5/18/2008 5:29 PM Lou spake thus:
>
>
>
>>> I need to attach a metal bracket to a concrete wall, Ive drilled holes
>>> for the screws, but I dont want to depend on screw tread alone, I'd
>>> like to fill the hole with some type of cement then put the screw in.
>>> Don't know what type is best. Any suggestions?? Thanks
>>
>>
>> Although I don't know why you don't trust a good concrete screw,
>> my advice would be and epoxy resin, not concrete.
>
>
> Yes; after all, that's how structural anchor bolts are secured to

> concrete footings and such.

Just make sure you use the correct epoxy...

http://tinyurl.com/4ybkkg

Jeff (Ducking...)


--
Jeffry Wisnia
(W1BSV + Brass Rat '57 EE)
The speed of light is 1.8*10^12 furlongs per fortnight.


Posted by Lou on May 19, 2008, 7:09 am
On May 19, 5:07 am, letter...@invalid.com wrote:
> wrote:
>
> >> Hi
> >> I need to attach a metal bracket to a concrete wall, Ive drilled holes
> >> for the screws, but I dont want to depend on screw tread alone, I'd
> >> like to fill the hole with some type of cement then put the screw in.
> >> Don't know what type is best. Any suggestions?? Thanks
>
> >Although I don't know why you don't trust a good concrete screw,
> >my advice would be and epoxy resin, not concrete.
> > Lou
>
> My elderly mother needed a metal railing on her concrete porch and
> steps. She uses a walker and really hangs on the railing. I
> installed it with the anchors that were provided with the kit. I used
> the recommended drill size, and followed all instructions.
>
> A few days later I am visiting her and notice she is leaning on this
> railing and the bolts are lifting out of the concrete. That's when I
> got some JB Weld and glued them into their holes. That was several
> years ago, and the railing is solid as can be.
>
> Maybe the 50+ year old concrete she has is just too porous, or
> something like that. Either way, it would not have held very long
> without the JB Weld.

What kind of anchors came with the railing?
Lou

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