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