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Behavior of Plain Concrete Under Various High Triaxial Compression Loading Conditions

James Chinn
Behavior of Plain Concrete Under Various High Triaxial Compression Loading Conditions by James Chinn PDF

Author : James Chinn
Publisher :
Page : 160 pages
File Size : 45,75 MB
Release : 1965
Category : Axial loads
ISBN :

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Triaxial compression tests were performed on 6-inch by 12-inch concrete cylinders. Axial pressures of up to 177,000 psi and lateral pressures of up to 75,000 psi were applied in the triaxial testing machine of the Bureau of Reclamation, Denver. Concrete mixes with average compressive strengths of 5,200 psi, 8,100 psi, and 8,700 psi were tested under four different types of triaxial compression. Type I and Type IV tests were run until the axial stress dropped or until 2 inches of axial deformation were produced. The results of the Type I and Type IV loadings differed little. Considerable bulging occurred, and it appeared that the average normal stress at midheight remained nearly constant during bulging and represented an approximate yield stress. Type II tests were run until the lateral stress had an effect. No drop-off of load occurred in the Type III tests, but the unconfined compressive strength of the concrete cylinders was decreased. The results obtained are in good agreement with those of previous investigators, but much higher stresses were attained in the present tests than in any previous tests. (Author).