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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Fracture Toughness of Portland Cement Concretes
Author(s): Dan J. Naus and James L. Lott
Publication: Journal Proceedings
Appears on pages(s): 481-489
Keywords: concretes; cracking (fracturing); crack propagation; elastic properties; fracture
mechanics; research; strain energy methods; strength; stresses.
Abstract:Fracture toughness is a material property determined by evaluating the stress intensity factor at the onset of rapid, unstable crack propagation. The stress intensity factor denotes the elastic stress and displacement fields in the region of the crack tip of a homogeneous material. When concrete is analyzed as a homogeneous material an effective fracture toughness is obtained. An experimental investigation was conducted to determine the effects of several concrete parameters on the fracture toughness of concrete.
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