We had four 60x60x6cm holes to fill in to support the new charging posts at a HART ambulance station.
Now I expected to be asked if I still had my cement mixer and told to call in at Jewsons get the bits I needed to fill the holes. A 6 to 1 mix should do it.
Instead office boy orders 3 cubic meters of concrete to be delivered to site.
I call at Jewsons and get 200 rubble sacks for the Russian labourer to fill with unused concrete that was dumped in the car park.
LOL!
Perhaps the office boy was questioning your hole being only 6cm deep?
What was wrong with a dry mix?
Even if he thought it was four holes @ 60x60x60cm then 1m^3 would have been overkill ...
A five-fold overkill.
Bill
I made it about 15% too much
You forgot there were 3 holes?
Doesn't 6 to 1 mix mean 6 parts sand to 1 part concrete.
no, there were in fact four holes.
6 bags ballast 1 bag cement.
What's wrong with a cement mixer and a hose pipe?
1m^3 would have been OK.
A bit of excess to take away and job done.
A 0.6m x 0.6m x 0.6m gives a volume of 0.216m^3
4 holes => 0.86m^3A 1m^3 load would be more than sufficient.
I have to admit the extra effort and time of mixing would be small in comparison to the hole digging. Plus only the amount needed used and the unused bags could be returned.
Except it is 0.6m x 0.6m x 0.06m...
Ok, I guess the 3m^3 concrete consisted of both ballast and cement.
I wasn't sure if the office boy had ordered 3m^3 of just cement.
I probably wouldn't make a good office boy either. ;o)
0.06m doesn't sound much good for sticking posts in.
Well thats what the OP said. Who am I to argue?
Did you know that apparently concrete is very expensive in carbon footprint terms? No idea why but it popped up on a science program the other day. Brian
It's the manufacture of the cement that is the problem because of the heat used.
Richard
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