LARGE SUPERFLAT POSTENSIONED FLOORS CONSTRUCTION TECHNOLOGY

Abstract

The main objective of this paper is to document the Chilean experience on the application of the postensioned super flat floors construction technology. The advantages of this solution are presented and compared with other types of slabs on grade, highlighting the need of super flat floors in warehouses with high racks for storage. The construction process and the required tools to adequately apply this technology are described, and three cases of actual construction jobs performed in Chile are analyzed. Also problems appearing during the construction process are presented and the adopted solutions are described. Finally, subjects requiring further research on the long term behavior, performance and durability of postensioned superflat floors are recommended.