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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: Horizontal Cracking in Continuously Reinforced Concrete Pavements
Author(s): Seong-Min Kim and Moon C. Won
Publication: Structural Journal
Appears on pages(s): 784-791
Keywords: cracking; reinforced concrete; stress
Abstract:Severe spalling and half-depth punchout failures associated with horizontal cracks at the mid-depth of concrete slabs were observed in continuously reinforced concrete pavement (CRCP). To identify the causes of those horizontal cracks, field observations, laboratory tests, and numerical analyses were conducted. The extent of horizontal cracking in the concrete slab was investigated with coring. Several variables relative to design, material, and environment were considered in the field and laboratory studies to evaluate possible causes of horizontal cracking. Numerical models of CRCP were developed using the finite element discretization, and the shear and normal tensile stress distributions in CRCP were investigated with the models to verify the results obtained from the field and laboratory studies. Numerical analysis results show that maximum shear and normal tensile stresses develop near the depth of steel bars at transverse cracks. Evaluations of in-place concrete material properties, such as modulus of elasticity and thermal expansion coefficient, from sections with and without horizontal cracks and environmental conditions during construction, all support the results of the numerical analysis.
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