| 摘要 |
Introduction of vibration forces into plastic concrete structures, such as concrete slabs (M), decks and similar or related concrete structures controls the consolidation of the concrete mass. Vibrating apparatus (3) imparts controlled vibrations either onto the surface (1) or beneath the surface of the concrete mass in sequential stages. The number of stages, the amplitude and frequency of the vibrations, the physical orientation of the vibration producing apparatus (3), the time duration in each stage, and the thickness of each stage of vibration is variable depending upon the physical characteristics of the concrete mass, including the physical characteristics of the concrete being used, the thickness of the concrete slab and the specific materials incorporated into the concrete during formation of the concrete mass.
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