| 摘要 |
PURPOSE:To make connections stronger by a method in which a water- permeable sheet is partly held between formworks, and concrete is placed into the formworks to bury a part of the sheet in the concrete. CONSTITUTION:A formwork consists of an outer formwork 2 to construct the outside of a structure and an inner formwork 3 to form a rib on the peripheral edge of the frame face 32. The formworks 2 and 3 are set in a mutually facing manner, and the end of a sheet 4 of a water-permeable and strong thermoplastic fiber such as polyamide fiber is held between the ribs 31 of the formwork 3 through a buffer material 5 and clamped with a bolt 6 and a nut 7. Concrete is placed into the space between the formworks 2 and 3, cured, and removed out of the formworks. Banking and the sheet 4 are alternately laid by extending them from the lowermost sheet 4 to the rear side of the structure orderly to bury the sheet 4.
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