Effect of matrix composition on steel fiber reinforced concrete properties
Thesis/Dissertation
·
OSTI ID:5494749
Since the early 1960's, researchers have conducted experiments to improve the strength and deformation capacity of the concrete matrix by reinforcing it with various types of short cut steel fibers. While such investigations contributed to the understanding of the influence of fibers in improving wide spectrum of concrete mechanical properties, there is insufficient information about the effect of concrete matrix composition in determining the workability and improving the mechanical properties of steel fiber reinforced concrete (SFRC). The primary objectives of this study were to determine the influence of concrete mix composition on SFRC properties in both fresh and hardened state. Also, the percentage air voids and how it influences the strength of SFRC was determined. In addition, rational SFRC design procedure was established. Plain concrete mixes and SFRC mixes containing two types of steel fibers were made. Workability measurement were carried out using the VeBe Consistometer. Entrapped air was measured using the air pressure meter. Flexural strength and flexural toughness measurements were obtained using the third-point loading test. Compressive strength was determined for concrete prisms.
- Research Organization:
- Michigan Univ., Ann Arbor (USA)
- OSTI ID:
- 5494749
- Country of Publication:
- United States
- Language:
- English
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