Raumer 8mm bolt soft rock test
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Uploader Comments (nmonteith)
All Comments (17)
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can you do the same drilling w/ a 18v rotary hamer drill??
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No one is asking you to take responsibility for anyone.
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I have never heard about this story and I am sorry to hear about it!!
but i cannot take responsibility for "czech" climbers as you would probably not take for all "australians"
...to use bolts in soft sandstone is stupid, always use proper ways to built the pitches
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Glue-ins are standard practice in Australian sandstone, although 1 inch dia is a tad excessive.
It sounds as though you are unaware of the history of this video. Travelling Czech climbers, against local advice, bolted a 10 pitch route with half sleeve (friction fit) expansion bolts, in the manner of this video. This bad bolting sadly resulted in the subsequent death of an Australian lad. The Czech bolts have now been removed.
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you have to use "sand stone bolts" with big diameter, like 1 inch !! and glue them
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Do you mean using half sleeve dyna bolts as shown, or glue-ins as they were told to use ?
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wtf?
guys, go to Czech Republic or Germany and check out a proper way of building routes on sandstone :)
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Serious food for thought there, I wouldn't hang my laundry off that!
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Was the smaller hole properly cleaned with a brush and blowing air, prior to inserting the bolt ?
It would be interesting to hear the manufacturer's claimed reason for the failure with the smaller dia. hole.
sydneydoc 3 years ago
Yes, both holes were cleaned with a brush and blower tube.
nmonteith 3 years ago