Title: Observations On The Use OF Vibration In The Field
Author(s): T. C. Powers
Publication: Journal Proceedings
Appears on pages(s): 74-79
Field observations indicate that when vibrators prove unsatisfactory, the cause can be found among the following items: (I) poor management, (2) un satisfactory methods of transporting concrete, unwise selection of size or number of vibrators, vibrators operating below normal speed, (5) im-properly proportioned mixes. Improper choice and operation of vibrators are due to lack of experience. A field method for adjusting a mix to the requirements of the vibrator is given.