BECO walls

Well, after a bit of head scratching the retaining walls have started to go up.
To hold back the ground and take the weight of the building the walls needed lots of steel bars in to make them strong...but it was a bit of a squeeze to get the concrete in! So we've used some blocks with more space and have been able to have a bit less steel so now it's all go. The walls get built really quick and the concrete is pumped in layers and that's it.
Can you see the nozzle putting the concrete into the wall?






















This is looking down on the concrete inside the BECO sandwich. The retaining wall will be finished soon.
We really must find out how concrete is made and what from...