- Thread starter God mode restorations
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finyuk2005
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made a pair of handrails, one for a very special customer, my granny, who had a new hip done last week!
Fairly happy how they turned out, should look good once painted,
I am needing some advice though, and that is, whats the best method of fixing the foot to a paving slab securely without cracking the slab?
would a heap of resin and some threaded bar be best?
cheers!
DAPPH
as dyslexik as I'm daft
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They look good .
made a pair of handrails, one for a very special customer, my granny, who had a new hip done last week!
Fairly happy how they turned out, should look good once painted,
I am needing some advice though, and that is, whats the best method of fixing the foot to a paving slab securely without cracking the slab?
would a heap of resin and some threaded bar be best?
cheers!
Fitting in a slab near an edge ..... slow drill with a drill off hammer and use Hilti ( in date " chemical anchors so you get a stress free anchor solidly set in the slab . If it is to be a 10 mm or greater dia fixing close to an edge predrill with a 5 mm masonry bit first then follow on with the correct clearance size masonry bit
Resin anchors and sometimes plastic holed top hat inserts are the way to go . ( Look up the Hilti system on line. )
Depending on how thick the slabs are you can use 6 mm upwards precision high grade stainless steel studding to cut your own anchor studs .
Cut the studding at 45 % . allow at least an inch to be proud of the slab ..it can be ground off if required later on .
Accurately drill all the pilot holes for the whole job then blow out the dust with a puffer ball etc. Once you've put the Hilti glue cartridge in a hole push in a cut stud ....pointy end down in each hole so you have the rail in the right position . Then one hole at a time and spin a stud in the drill to break the capsule and thoroughly mix it . Release the stud push it down do each hole in turn & let it settle down into the hole and cure for the correct time at the given temp ( add an hour or more to be sure ) then put a stainless washer & ny lock nut on the studding . Usually you'll have a decent 15 min or so to play with before the chemical anchors start to set .
You can usually get to within 3/4 inch of an edge in slabs using this method so long as you do not use any form of hammer drilling as that will all too often cause at least one hole to blow out .
The same with all the the expanding anchor bolt types they'll bow the hole once the pressure starts being applied .
If the slabs are really thin hole cut a 4 inch hole in the middle of the place where the plate will sit , vacuum out a bulb shaped hole to a depth of a foot or so & pour in a runny fine concrete mix smooth ot with a trowel then give it a week or two to partially cure and again use the chemical anchor method.
I don't think using screws or coach bolt screws in plastic plugs would be safe to secure the hand rail .... The dividing partition in our garden when we came here was anchored with a mixture of them and the first bit of push from my 4 yr old daughter & golden retriever saw the divider pull out the screws .
Hood
I am obsessed.
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MultiMonti/ThunderBolts or one of the other names they go by are excellent. You drill a hole the correct size and screw them in and they cut a thread so can be removed later if required and then put back in. They don't expand anything so won't crack a slab and can be used close to an edge.
finyuk2005
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thanks for that, i might end up doing the concrete method you described, sounds like that would be the most secure,
although i did pick up a few small 6mm thunderbolt style ones, i could always try that first and see how it holds
cheers dudes!
although i did pick up a few small 6mm thunderbolt style ones, i could always try that first and see how it holds
cheers dudes!
Hood
I am obsessed.
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They hold exceptionally well as long as the hole you initially drill is the correct size. I have heavy transformers, lathe tools, milling tools, welder brackets etc all held up with them.
A couple of pics below.
I also fitted some hand rails I made a while back and used them, some of the fixings were into concrete slabs and the others were into granite setts and I was surprised how well they cut into the granite, I thought I was going to have issues but it was easy.
James1979
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Getting the proper branded Thunderbolt ones is a world apart to the cheap ones
Memmeddu
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Do you mean an A10?
dan.taylor.1
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I much prefer resin in fixings, if they need to be removable just use female anchors rather than studs, then the hole can either be bunged with a big grub screw or just silicone tye stuff. Never had one fail yet if done right. I gave up on other fixings after a broken stone gate stoop due to through bolts, it went a week after I fit the gate, ended up sticking back together with resin in the end.
I still use through bolts in concrete floors and filled block walls, I usually drill the hole deep enough that if I want it removed I can knock the fixing into the hole and cover over.
I still use through bolts in concrete floors and filled block walls, I usually drill the hole deep enough that if I want it removed I can knock the fixing into the hole and cover over.
James1979
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Yeah that’d make a decent hole....
Memmeddu
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And then your ear brrrrrrrr
MattF
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Some poor sod seeing that happen whilst they're atop something supposedly supported by resin anchors wouldn't be thinking: Oh that's good.
Barking Mat
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I'm a great fan of chemical resin.Some poor sod seeing that happen whilst they're atop something supposedly supported by resin anchors wouldn't be thinking: Oh that's good.
Munkul
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Haha, yes but remember that chemical resin anchors aren't tensioned until the resin has already set. So if it hasn't set properly, the anchor just pulls straight through when tightenedSome poor sod seeing that happen whilst they're atop something supposedly supported by resin anchors wouldn't be thinking: Oh that's good.
mtt.tr
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Ive abseiled commercially and been involved in pull testing new installs.Some poor sod seeing that happen whilst they're atop something supposedly supported by resin anchors wouldn't be thinking: Oh that's good.
