Application of High Perfomance Concrete on a 85-Story High Rise Building in Taiwan
High Performance Concrete (HPC) has become a potential research topic of construction automation due to its cost effectiveness, laborer reduction, productivity improvement and high quality of concrete pouring on construction fields. HPC not only has the characteristics of traditional high strength concrete, but also high flowability, workability , durability, as well as high resistance to segregation. HPC can be placed in heavily reinforced formwork without applying vibrators and save substantial amount of labor requirement. A 85-story high rise building is currently being built in the Kaohsiung city in south Taiwan. To reduce the steel amount required for column boxes as well as ease the placing and vibrating concrete into these steel column boxes, 16,000 m3 of high performance concrete with compressive strength of 560 kg/cm2 and slump of 25 cm. are designed to be filled in these steel column boxes. The high performance concrete demonstrates excellent workability, flowability, and required compressive strength. The steel column boxes are filled with HPC by a upward filling process without vibrators. The use of HPC in the 85-story high rise building not only solve the filling difficulty and produce a high quality concrete, but also save substantial material cost and labor requirement. This paper presents experience of HPC and its application to a 85-story high rise building. The successfully utilization of HPC in Taiwan encourages more research and utilization of HPC in the future.