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Title: Early Age Fracture Behavior of Hybrid Fiber-Reinforced Concrete

Author(s): N. W. Kim, T. Horiguchi, and N. Saeki

Publication: Symposium Paper

Volume: 192


Appears on pages(s): 1019-1036

Keywords: age; fiber-reinforced concretes; fracture properties; mass concrete; thermal stresses

DOI: 10.14359/5799

Date: 4/1/2000

Controlling and mitigating cracks in concrete is one of the most serious and inherent problems. In this research, improvement of crack resistance against thermal stress and shrinkage of the mass concrete at an early age were investigated using the hybrid fiber reinforced concrete. The fibers used were steel and polypropylene fibers with the lengths of 6,12, and 30mm. The physical properties as well as crack resistance capabilities of the hybrid fiber-reinforced concrete were evaluated. As for the evaluation of crack resistant property, strain energy release rate, calculated by the fracture mechanics, has been proposed as a result of this research.


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