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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: Relationship of Polypropylene Fiber Reinforced Concrete to Permeability
Author(s): G. Vondran and T. Webster
Publication: Special Publication
Appears on pages(s): 85-98
Keywords: corrosion; cracking (fracturing); fiber reinforced concretes; permeability; polypropylene fibers; reinforcing steels; Materials Research
Abstract:Concretes with and without polypropylene fibers were tested to determine their relationship to permeability. This paper focuses on one type of fiber--bundles of fibrillated polypropylene. The bundles open during concrete mixing and separate into millions of multistrand filament fibers. Tests on permeability, cracking, and steel corrosion show reductions in all three when fibrous concretes are compared with conventional concrete at equal water-cement ratios. A new term, "Perm Point," explains the influence of the fibers on permeability. Subsidence cracking over steel reinforcement increases permeability and accelerates corrosion, whereas polypropylene fiber reinforced concrete reduces this phenomenon. Results suggest an interrelationship exists among permeability, cracking, and steel corrosion.
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