| 摘要 |
PROBLEM TO BE SOLVED: To provide a precast concrete used in construction of an aqueduct and the like and to provide a method for producing the same effectively. SOLUTION: A mold 1 having a predetermined inner shape is moved along a specific pathway while a ready-mixed concrete is introduced in the mold, whereby a concrete structure 7 having the same cross sectional shape with the inner shape of the mold 1 is formed continuously in the moving direction. Partition materials 5 are previously arranged at a specific interval in the moving pathway of the mold 1 having the predetermined shape, and then embedded in the concrete structure 7. The concrete structure 7 is cut and separated at the positions of the partition materials 5, whereby a precast concrete 7A having the predetermined shape is obtained. COPYRIGHT: (C)2004,JPO&NCIPI
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