Accession Number : AD0756429
Title : Effect of Vibration on Air Content of Mass Concrete.
Descriptive Note : Technical memo.,
Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS
Personal Author(s) : Spuehler,E. A. ; Mather,K. ; Kennedy,T. B.
Report Date : MAY 1952
Pagination or Media Count : 28
Abstract : Tests were made to observe the effect of high-frequency (13,000 vpm) and moderate-frequency (6800 vpm) vibration on concrete ranging from dry to wet consistency, containing 6-in. coarse aggregate, and having nominal air contents of 3, 6, and 9 per cent in that portion of the mix smaller than 1-1/2 in. Cores drilled from hardened specimens of the concrete with 6-per-cent air content were examined micrometrically for amount and distribution of air and coarse aggregate. (Author)
Descriptors : (*CONCRETE, VIBRATION), AIR, MIXTURES, PETROGRAPHY, SAMPLING, DEFECTS(MATERIALS), NONDESTRUCTIVE TESTING, ULTRASONIC RADIATION
Subject Categories : Construction Equipment, Materials & Supplies
Test Facilities, Equipment and Methods
Distribution Statement : APPROVED FOR PUBLIC RELEASE