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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: Micro-Reinforced Cementitious Composites for Thin Repairs
Author(s): Nemkumar Banthia and Sylvie Dubeau
Publication: Special Publication
Appears on pages(s): 307-322
Keywords: bending; carbon; cement pastes; composite materials; metal fibers; mortars (material); repairs; tension tests; Materials Research
Abstract:With the objective of examining the possible use of microreinforced cementitious materials for thin repairs, tensile bond between old concrete and microreinforced cement composites was evaluated. Cement pastes and mortars were reinforced with microfibers of carbon and steel with fiber weight fractions of up to 5 percent. Uniaxial tensile tests were conducted to determine the strength of the tensile bond between an old concrete and the repair composite. Improvements in the tensile bond strength were noticed due to fiber inclusion. In some cases, however, poor composite workability led to inadequate compaction and the tensile bond strength was adversely affected.
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