1996 Volume 34 Issue 8 Pages 21-28
A steel-concrete-steel sandwich structural design is being used for the immersed tube sections of the Kobe port Minatojima Tunnel. The first pouring works of high fluidity concrete in the main assemblies are finished. Various factors affect the quality of high fluidity concrete, and also it is impossible to confirm directly the filling and to repair the failure, pouring concrete into sandwich steel cell. For success of pouring works, we made methods about the accurate quality control and the exact logistics of concrete. This report describes the methods and results of the quality control, the logistics and the non destructive inspection with regard to the first pouring works into the sandwich steel cell.
