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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Practical Application Of Vibration
Author(s): C. M. Hathaway
Publication: Journal Proceedings
Appears on pages(s): 420-423
Abstract:The use of mechanical vibrators in Illinois for lacing concrete in the construction of bridges has ad satisfactor f results. Conclusions in regard to requirements 0 internal vibrators il referable prac- tices in their use, precautions in bu ding forms, and permissible changes in the concrete mixes and their slumps are discussed in detail. The use of internal vibrators has cut down the cost of concrete struc- tures by reducing the manpower required for spad- ing concrete 40 to 70 percent and decreasing the required amount of cement 5 or IO percent, al- though it requires an increase of 5 to IO percent in the cost of form building. An experiment in the use of surface vibrators on pavements is mentioned briefly. It was found that a mix could be used and that a drier consistency was necessary. The pavement edges were, at times, honeycombed. Some surface scaling also developed, but it is uncertain whether this was due to the use of the surface vibrator.
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