Development of Heavy Load Capacity UFC Slab and its Mass Production
By H. Musha, A. Ohtake, K. Yokoi and T. Noguchi
Concrete Journal, Vol.48, No.11, Nov. 2010
- Synopsis
- About 7 000 UFC precast slabs were installed in the area around Runway D and its taxiways at Tokyo International Airport (Haneda). The UFC slabs are required to carry heavy loads, such as a jumbo jet, and must be cost-competitive. Therefore, experiments for mass production, as well as structural tests, were conducted using UFC slabs of various types. A UFC slab with a rib structure and prestressing in two directions was developed along with a system for mass-producing the slabs. A dedicated UFC slab factory incorporating the mass production system was constructed and 7 000 high quality UFC slabs were produced. This is the first time in the world for UFC slabs to be produced on such a large scale.
- Keywords:
- UFC, ultra-high strength, fiber reinforced, precast, slab, pre-tension, mass production
