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TOPIC: more bolting info

more bolting info 3 years 10 months ago #21353

  • timwatts
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www.upskillclimbing.com/2009/02/how-to-b...-and-how-not-to.html

Incidentally i am investigating a club supply (at preferential rate) of www.gebfissaggi.com/inglese/prodotti.asp...=CHIED&cat=EPOPLUSRE resin and also some 10mmx100mm and some 12mmx120mm Raumer glue in anchors (bulk buy).

Looks like (after reading the above) the earlier advise given to me regarding which resin to use was good because its the same as mentioned right near the end of the above report.
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Tim Watts
Last Edit: 3 years 10 months ago by timwatts.
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more bolting info 3 years 10 months ago #21355

dam you timbo - you are forcing me to think when I should be drinking

1 - resin cartidges - I suggest UCET should use " one tube " resins such as hilti HIT HY - 2 tube systems have poor compatability [ piston size ] - one tube - systems fit all sketeton guns

also - one tube syatems have better ranges of tube size - from 100ml to 450ml - allowing better management - and less waster - ie a small job - use a 100ml tube - it may cost £3 / 100ml - as opposed to only £4 for 30ml - but wasted is redudced = win

2 resin capsules - should be stocked too - for " occasional" and " limited " use - where only a 2 / 3 anchor installation is needed

resins [ of all types ] have both a shelf life and a " open life "

capsules are [ generally ] faster curing - this is not a major concern for ucet - as we would gravitate to slow [ 20 minuote cure ] - that cost only £2 ea , rather than the hi end 5 minuite cure at £7 ea

but an opened tube of 2 pack resin - still has a limited useble life - and if we only need to instal3 anchors - 3 capsules may be cheaper an a tube that COULD set 30 anchors - but ewill be expired before it is next needed


3 - bolt lengths - 120mm ?????? what are we bolting into ????????? - that typically needs a 140mm hole

we should suit anchors to placement - not buy one type sand make them do all our placements

miles moulding is putting 90mm anchors in slate - anf getting them insurance approved

the BCA is putting 80mm anchors in limestone - and certifying them

the 2nd teir links of your own source shows what has been tested in sandstone

why does UCET need 120mm anchors ????????

I am not saying we don't need any - we may need some bigger - but for most installs in sound substrates - everyone else uses smaller anchors

which cost less - need less resin - and allow more drll holes / battery


4 - fook 4 - I need bed
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more bolting info 3 years 10 months ago #21356

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cheers andy - sorry - i did miss type that - 10mm*80mm i meant, but am also thinking of either some 10mmx100 or some 12mm*120 (probably the former) for 'worse' ground. That said, i'd personally rather have 'more' 80mm anchors spread out in less than perfect ground rather than assuming that an extra 20 or 40mm depth is going to make any real difference in say a two anchor system in 'less' than perfect' ground.

So to confirm - a majority of 10x80's and a smaller quantity of (most likely) 10x100's - do you think sounds sensible?

Epoxy is the issue, as you say. I think we'll end up buying a mix of stuff depending on the job in hand - as you say - quantity needed - and type of trip to lug gear to etc.
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more bolting info 3 years 10 months ago #21376

  • madmicks
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Hi Tim
go for the buy you will always need anchors somewere, as regards resin in the tubes that you fit in a gun the art of using it all and lasting longer palce the tube in a bucket of very hot water this makes the 2 components very wet and the mix faster at the nozzle and you can run the tube before it gets chance to go stiff, i have a shed load of hilti sausages from 12mm up to 20mm but these push in the holes and the threaded bar is spun into it witha drill which creates the mixing and the heat from the rotation also makes it go off quicker,the latter is used for securing plates with nuts and washers you can make steel plates folded for 30 degrees with 2 holes, the flat part secured to the bolt the folded outer hole takes the karabiner.
mick
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more bolting info 3 years 10 months ago #21384

  • timwatts
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top stuff murph.

Right - the clubs got a supply of 10mmx80mm and 10mmx100mm raumer resin anchors on order from Tony.

For exploration purposes fair enough we can use expansion bolts but generally speaking if we're putting in ANYTHING permament we're gonna be using proper EPOXY resin and proper Raumer anchors.

Incidentaly, with regards to Epoxy Resin (and it must be Epoxy!!) the science seems to be that pure Epoxy resin is pure epoxy resin irregardless of where it comes from and or who makes it - basically the real stuff is the stuff that says that its pure epoxy. It take at least 30mins to cure. Anything that take less has extra shit in that we probably shouldn't be using.

The hole must be completely clean, dry and blow out of ALL dust (a piece of plastic tube to blow it all out is ideal and the hole MUST then be notched out at the end to accept a slightly 'countersunk' portion of the hanger.

Completely filled with a thoroughly mixed epoxy which includes filling the countersunk portion too.

We've got an initial order of 50 units coming to us which will keep us going for a while.
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Tim Watts
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