 AVDRespice, Adspice, ProspicePremium
join:2003-02-06
Onion, NJ
kudos:1 | reply to Sc0tt
Re: Drilling into concrete ceiling said by Sc0tt:i have a hilti te-7c. it will drill into anything, including steel water pipes 
Cutting steel is easier than concrete.
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AVDRespice, Adspice, ProspicePremium
join:2003-02-06
Onion, NJ
kudos:1 | reply to MaynardKrebs
said by MaynardKrebs:Watch out for electrical conduit embedded in the concrete (not knowing what the 'ceiling' is the floor of above you).
How thick is the ceiling slab? If it isn't really thick (8"+), don't use expanding anchors - use Tapcons, or threaded rod anchored in epoxy. If using rods, use lock nuts to hold the projector onto the rods.
i would never use chemical anchors in tension.
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* seek help if having trouble coping
--Standard disclaimers apply.-- |
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| said by AVD:said by MaynardKrebs:Watch out for electrical conduit embedded in the concrete (not knowing what the 'ceiling' is the floor of above you).
How thick is the ceiling slab? If it isn't really thick (8"+), don't use expanding anchors - use Tapcons, or threaded rod anchored in epoxy. If using rods, use lock nuts to hold the projector onto the rods.
i would never use chemical anchors in tension. He's talking about installing a 12lb. load with probably 3-6 anchors locating in a relatively small area (almost certainly less than 1 sq. ft., and more likely about 1/2 that area). That many expansion anchors in that small an area is just asking for cracking & spalling of the concrete. |
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 PeeWeePremium
join:2001-10-21
Madera, CA | reply to Subaru
There is a high likelihood of asbestos in that type of ceiling.
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Iphone. Helping computer illiteracy become popular since 2007 |
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 Subaru1-3-2-4Premium
join:2001-05-31
Greenwich, CT | yeah that could be a possibility |
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 Sc0ttKneedraggerPremium
join:2000-11-13
Stockholm, NJ | reply to AVD
said by AVD:said by Sc0tt:i have a hilti te-7c. it will drill into anything, including steel water pipes
Cutting steel is easier than concrete. yes, with the proper tools. I am in construction and work with both daily.
it was a hammer drill bit (sds+ to be exact) that was put through the standpipe LOL. |
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