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How To Guarantee A Frost...

Posted by Crofter , 15 January 2016 · 1,283 views

How To Guarantee A Frost... Some concrete progress on my little build. The house will sit on eight piers, on account of the sloping site. These will be poured in two goes- firstly, a footing filled to ground level, then the pier itself will be poured on top using a piece of pipe as the former.

I site-batched the first footing last week and was surprised to wake up to a slight frost, which had not been forecast. No harm done (I think) as the concrete is fairly deep in the ground (I had to dig about a metre down to get good firm ground) and I did cover it up overnight.
The remaining seven I did with a 'volumetric mixing lorry' as this was actually lower cost, not to mention much faster, than site batching. I did have some stress trying to organise the lorry to come on the right day (the quantity of concrete involved, about 2.5m3, was so little that he wanted to piggyback it onto another job) plus rounding up helpers in the middle of a week day when everybody is at work, and finally trying to find enough wheelbarrows without holes in them, just about made me call the whole thing off. Eventually, the planets all came into alignment, several neighbours kindly loaned me the needed barrows, and the whole thing went off without a hitch.

I woke up in the morning to, yep, another unforecast frost. How do I manage to do it?

Edit: forgot to mention my site labourer, Jess, who helped me dig the holes...Attached Image Attached Image



Think yourself lucky. My roofing has ground to a halt due to 2" of snow on the roof and the water in the reservoir of my tile cutter is frozen.

I can't wait for the next storm to bring us some milder weather (even if it is wet)
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I should add that the photo was from two days after the pour, the frost I woke up to was much lighter!
I'd imagine it must be lethal being up on scaffolding where you are, Dave?
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The scaffold is not too bad even when icy, that's what handrails are for!!!!

It's other things like having to defrost the water in tile cutter, finding a stack of tiles are stuck together with ice, and just that it's damn cold on the fingers that make it hard work.

I've been and swept most of the snow off the roof so there's less there to need to thaw when it next warms up.
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A wee update: I decided to built square section formers for the piers as the pipe was going to work out pretty expensive. I also decided to make a short initial pour for form a 'kicker', this being the first 100mm or so of the pier. Te idea behind this is that it is much easier to get the former lined up and plumb by doing it in two stages.

Today was the first decent day of weather for what seems like ages, and I was able to get the kickers poured. I actually spent more time cleaning up the footings than batching the relatively small quantity of concrete. However now I am truly out of the ground so things should get easier from here on.

A few more dry days would help my schedule no end!
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