On site
12 Oct 2026
Pouring the Cast Court stair in one day
Forty cubic metres, one pour, no joints. How we planned the day.
The stair at Cast Court is forty cubic metres of concrete with no joints. That means one pour, one day, and no second chance.
Why one pour
A joint in a stair shows forever. A cold joint in board-marked concrete shows twice, because the boards do not line up again. So we planned the day for three months.
What the day looked like
Trucks from 5 am, one every twelve minutes. Two pumps, in case one failed. One did. By 6 pm the boards were full and the site was quiet.
We struck the formwork nine days later. The grain of every board is in the wall.
J-700 · Keep reading
