Title:
Mechanical Properties of Three High-Strength Concretes
Containing Silica Fume
Author(s):
J. Xie, A. E. Elwi, and J. G. MacGregor
Publication:
Materials Journal
Volume:
92
Issue:
2
Appears on pages(s):
135-145
Keywords:
compressive strength; confined concrete; ductility; high-strength
concretes; residual stress; silica fume; triaxial stresses.
DOI:
10.14359/9764
Date:
3/1/1995
Abstract:
Three high-strength concretes containing silica fume were cast and tested at the University of Alberta to study the mechanical properties. The concretes were designed to have compressive cylinder strengths of 60, 90, and 120 MPa. The tests carried out included the compressive cylinder split-cylinder notched-beam, and triaxial compression tests. The objective was to determine the compressive cylinder strength, split-cylinder tensile strength, tensile fracture energy, and maximum and residual triaxial strengths. Based on the test results, some observations were made on the concrete behavior in uniaxial compression, tension, and triaxial compression. The relationship between the conjnement and the maximum and residual strengths of concrete in triaxial compression was studied. The test results have been used to establish expressions of maximum and residual strengths in ajnite element constitutive model for high-strength concrete.