| 摘要 |
PROBLEM TO BE SOLVED: To provide an after-bond method which is easy in execution control and inexpensive. SOLUTION: In an after-bond method, a concrete is placed in a pre-stressed concrete structure, and then, the pre-stress is introduced at a specified age of the material to demonstrate the adhesion to the concrete. A cement grout to be filled between a PC steel 2 and a sheath 1 is a cement grout 3 to which a setting retarder is added.
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