To provide a wall concrete placement method for placing unhardened concrete in a framework, capable of mounting protrusions or a resin sheet with protrusions on the inner face of the framework, placing concrete therein and then cleanly separating the resin sheet from a concrete wall face, after it has cured and hardened, when removing the framework and the resin sheet, to prevent resin residuals from remaining on the concrete face.
A flexible sheet having a number of protrusions or a flexible sheet with protrusions 1a on one surface is composed of a resin composition containing 100 pts.wt. aliphatic polyester and 1-100 pts.wt. polyalkylene glycol and/or polyvinyl alcohol having structural units represented by a formula. The flat face thereof is adhered to a concrete placement face of a framework board. In the formula, R1 and R2 independently snow saturated or unsaturated hydrocarbon radicals with the number of hydrogen or carbon atoms being 1-6 and (n) shows a 1-5 integer. A concrete placement sheet is used to place a wall concrete, so that the resin sheet is cleanly separated from the concrete face and the concrete wall having a rough surface is easily and surely formed. This formed concrete wall shows strong adhesive force to a mortar and sufficiently high adhesive strength and so it is extremely suitable as a wall face to be tiled in construction.
KITAHARA YASUHIRO
WATANABE TAKAYUKI
AIHARA HISASHI
NAKADA TOMOYUKI
SUZUKI KAZUHIKO
AJIOKA MASANOBU
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