Title:
Experimental Investigation of Composite
Ultra-High-Performance Fiber-Reinforced
Concrete and Conventional Concrete Members
Author(s):
Katrin Habel, Emmanuel Denarié, and Eugen Brühwiler
Publication:
Structural Journal
Volume:
104
Issue:
1
Appears on pages(s):
93-101
Keywords:
fiber-reinforced concrete; rehabilitation; stress-strain
DOI:
10.14359/18437
Date:
1/1/2007
Abstract:
Composite ultra-high-performance fiber-reinforced concrete (UHPFRC) and conventional reinforced concrete structural members are investigated to assess the rehabilitation potential for existing concrete structures. The composite structural response is determined by testing 12 full-sized flexural beams, loading the UHPFRC layer in tension. The results demonstrate that the exceptional material properties of UHPFRC significantly improve the composite member structural response, including the ultimate force, stiffness, and cracking behavior. An analytical model is developed to predict the composite UHPFRC and conventional reinforced concrete structural response, and is employed to further analyze the experimental test results.