They’re ok. As everyone says they have there place.
You have to keep an eye on the mix, doesn’t take much for stone hopper to get a bit of a blockage and then your concrete becomes grout.
it’s hollow underneath
This area becomes the driveway and front garden for the house so it had to carry a lot of weight. We’ve concreted roughly the red box
This is called slip form. They do a lot of high rise buildings like this, they’ll move about 300mm an hour
obviously they can move on walls a lot faster.
Most concrete walls down the middle of the motorway use this, a firm called Extrudakerb seem to have the market pretty much sewn up
Theres a few totes for this, the most common is a 25mm water bar. It looks like plasticine but on a 10m roll, you nail it or glue it down in the centre of your wall and if water gets under the concrete to it, it will expand. The other is a 250mm wide water bar and you cast 125mm into the base...
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