Concrete level control jig

Abstract

This item is used to control the level of the top surface of concrete when pouring concrete. The item consists of a base that is fixed to the location where the concrete is poured, a vertically extending indicator rod, and a top surface indicator member that is vertically adjustable relative to the indicator rod. The base has a cylindrical support part that accommodates the lower side of the indicator rod, and after the concrete is poured, the indicator rod is removed and only the base remains in the concrete. In the drawing, the lowest plate-shaped part and the cylindrical part erected above it are the base, the spiral part extending upward from the cylindrical part is the indicator rod, and the annular part attached to the indicator rod is the top surface indicator member.

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