METHOD OF PLACING CONCRETE IN LONG SIZE SPACE

PROBLEM TO BE SOLVED: To form the even hardening concrete while restricting the change with age of the high flow concrete by arranging partitioning plates inside of a long size element to be constructed so as to partition the inside into plural spaces for concrete placement. SOLUTION: Plural partitioning plates 2 are arranged inside of an element to be constructed formed of square steel pipes or the like so as to divide the inside into plural spaces V1-V4 for concrete placement, and concrete pressure feeding pipes P2-P4 formed of a spiral pipe having a low pressure resistance are arranged. A porous plate of punching metal or the like is arranged in the highest part of the partitioning plate 2 so as to form ventilation holes 8. High flow concrete is placed into the space V1 from a supply pipe 10 through an end plate 9, and the supply pipe 10 is connected to pressure-feeding pipes P2-P4 in order so as to place the high flow concrete into the spaces V2-V4. With this structure, filling distance to be required per each time is shortened so as to restrict the change with age of the concrete, and generation of part left as it is not filled with concrete is prevented so as to form the even hardening concrete.