| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a precast block and the like, which suppress cracking by reducing the amount of concrete placement and which can secure integration of a concrete structure in itself and integration between the concrete structure and a lower layer.SOLUTION: When pedestal concrete 15 is constructed in water, a precast block 1 is installed within a form 17, and underwater nonseparable concrete 19 is placed within the form 17. The precast block 1 has leg parts 5 provided on the bottom of a cylindrical body 2, and a surface thereof is roughened. Additionally, an upward inclination from an outside to an inside is provided on a bottom surface 7 between leg parts 5 of the body 2.</p> |
