The Crane Bucket also serves as a concrete placement device in high places,
just like the portable concrete pump we used in the last pour at this
East Crescent Phase V construction. The consistency of the water-cement ratio
is always a critical issue when it comes to hitting the optimum balance between
the workability to provide easier concrete placement and the low slump(water)
requirement to achieve higher material strength.
[Photo by Jeff Manta text by Tomiaki Tamura]