[TheForge] Drilling angles etc

[Peter Fels & Phoebe Palmer]

There are several brands of expansive cement...containing cement, a 
plastic additive like latex or acrylic some sand and an air entraining 
agent, usually...pf

Peter Hirst wrote:
> Don't know the brand off hand.  Black and white parts in tin cans, True 
> Value carries it.  Not exotic.  More expensive, but way cheaper in pints and 
> quarts, and considering  the importance of the anchor relative small 
> percentage of overall material cost:  also reliably waterproof.
> 
> 
> ----- Original Message ----- 
> From: "Woolley" <wjec1 at verizon.net>
> To: "Blacksmithing List Sponsored by ABANA" <theforge at mailman.qth.net>
> Sent: Wednesday, March 11, 2009 9:08 PM
> Subject: Re: [TheForge] Drilling angles etc
> 
> 
>> Peter Hirst wrote:
>>> Why is it a one-time shot?  When setting iron in concrete, you want to 
>>> set
>>> it in some kind of plastic material anyway:  lead, epoxy, thin-set,
>>> hydraulic cement.  You do *not* want just a friction fit in the concrete.
>>> Collects water and * rusts*.  Drill it way oversize, position the post to
>>> your specs, and pour in whatever goo you like working with best.  I favor
>>> epoxy, or for historic accuracy, lead.
>>>
>>>
>>>
>> I use oversize holes with hydraulic cement to set posts.  You still
>> only  get one shot to drill the hole right.  What kind of epoxy do you
>> use?  Most epoxies would be a lot more expensive than cement I would 
>> think.
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