Two concrete columns hold up a curving concrete roof of this pavilion that architecture firm SOM has built using a method it says could reduce the carbon footprint of high-rise concrete buildings.

The concrete slab can be thought of as the wearing cap for the building pad and base course. A well compacted and smooth subgrade is critical to a successful slab. Slab formwork, jointing details, ...

Rate of placement and screeding method are baseline decisions that must be made prior to start of placement. Placing/finishing concrete is time sensitive and susceptible to environmental conditions.