Shedendman
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Now i dont want this to get into the they did right or wrong,whats done is done as far as i'm concerned
One thing that has me bugged is,if that concrete was so called re-enforced ie has some rather large lumps of steel(rebar) in it,what core bit did they use?
Now i've use diamond core bits quite a few times in my life times(both dry and wet,but not as big as that i may add) and from those experiences i know that as soon as you start hitting metal they soon lose cutting ie the edges wear out very fast esp if you go on the thickest of what they drilled,400mm thick wasn't it?
Ok lets say they did it dry as in no coolant whatsoever,aren't we looking at some mother of a core bit being used here,even if wet,so the report says was used,at that thickness and with,if any,steel in the way thats some amount of water used,agreed?
Yet you look at the so called photos after the job, place has no signs of flooding,you dont see any signs of steel in the holes that were cut just clean concrete,ok perhaps there was a big clean up afterwards who knows.
So to sum up is there a diamond core bit thats that good you can hire out of the local HSS (cant remember if it was hired or bought) that'll go through concrete and steel?
One thing that has me bugged is,if that concrete was so called re-enforced ie has some rather large lumps of steel(rebar) in it,what core bit did they use?
Now i've use diamond core bits quite a few times in my life times(both dry and wet,but not as big as that i may add) and from those experiences i know that as soon as you start hitting metal they soon lose cutting ie the edges wear out very fast esp if you go on the thickest of what they drilled,400mm thick wasn't it?
Ok lets say they did it dry as in no coolant whatsoever,aren't we looking at some mother of a core bit being used here,even if wet,so the report says was used,at that thickness and with,if any,steel in the way thats some amount of water used,agreed?
Yet you look at the so called photos after the job, place has no signs of flooding,you dont see any signs of steel in the holes that were cut just clean concrete,ok perhaps there was a big clean up afterwards who knows.
So to sum up is there a diamond core bit thats that good you can hire out of the local HSS (cant remember if it was hired or bought) that'll go through concrete and steel?
