Date of Award
Doctor of Philosophy
Industrial Education and Technology
William D. Wolansky
This research was conducted to analyze the flexural and tensile strengths of steel and polypropylene fiber hybrid concrete composite. The concrete used in fabrication of flexural beams and tensile cylinders consisted of type I portland cement, fine aggregate, and 3/4 inch coarse aggregate. The investigation involved 56 beams and 56 cylinders each divided into eight groups. Hooked steel fiber with an aspect ratio of 100 and volume fraction of 1.0% in conjunction with collated and fiberlated polypropylene fiber with volume fractions of 0.1, 0.2, and 0.3 percent was utilized. The center point loading and splitting tensile test methods were used to determine flexural and tensile strengths of concrete composite;The flexural and tensile strengths of hybrid groups were higher than conventional concrete. The maximum flexural and tensile strength was obtained in the case of beams and cylinders with 1.0% steel and 0.2% polypropylene fiber hybrid. The ultimate flexural and tensile strength in concrete beams and cylinders was 49% and 77% higher than conventional concrete.
Digital Repository @ Iowa State University, http://lib.dr.iastate.edu/
Varzavand, Shahram, "Flexural and tensile characteristics of steel and polypropylene fiber hybrid reinforced concrete composite " (1993). Retrospective Theses and Dissertations. 10196.