| 摘要 |
PURPOSE:To facilitate chipping concrete by a method in which when concrete for the foundation of a machinery is placed, a thin steel plate is inserted into the range to be chipped, and after the concrete hardens, the chipping portion is cut off from the sideward direction. CONSTITUTION:When concrete for the foundation 1 of a machinery is placed, a thin steel plate 4 of a width of about 50mm. is inserted in a form of angular frame of a 100mm.X100mm. size for example into the concrete not hardened. After the concrete hardens, the chipping portion 3 is cut off from the sideward direction, whereupon the sideward joints of the concrete become separated from each other by the thin steel plate 4, and concrete blocks of a size such as is divided by the thin steel plate 4 are separated. In virtue of chipping the concrete, the thin steel plate 4 can have a function of promoting separation. |
