CONCRETE PLACING METHOD FOR MULTI-STORY BUILDING AND FEED DIRECTION VARIABLE PIPE FOR UNDRIED CONCRETE

摘要

PROBLEM TO BE SOLVED: To perform easily the post-work concrete placing operation to construct a building, in particular a multi-story, by changing the undried concrete pressure feeding direction safely and with good working effectiveness. ;SOLUTION: When concrete placing is performed to construct a multi-story building 1, vertical pipes are laid for the floor which undergoes the post-work concrete placing operation, wherein the vertical pipes are coupled together and piped around while those vertical pipes 4 to make only the upward feeding of undried concrete and pressure feed direction varying pipes 5 capable of switching the concrete feeding direction from the upward to horizontal or vice versa are combined. Those vertical pipes which correspond to the floor to undergo the post-work concrete placing operation should be pressure feed direction varying pipes 5.;COPYRIGHT: (C)1997,JPO