Here are some shots of this week's concrete work on our new Library/Radio/Art/Fitness wing.
You can see a concrete pump truck (the bright orange beast) extending to reach each of the columns (see all the wood forming?). These columns are formed/braced with wood, but use a SonaTube form for the cylindrical form. Inside is a rebar cage (a rounded ‘skeleton’ made of reinforcing steel) from the concrete slab to the top of the columns. The worker holds the concrete pump hose at the top of the column form and fills the column, in and around the rebar.
When the forms are removed, there will be 12 cylindrical concrete columns standing at the edge of the slab.
