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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: Long-Term Durability of Silica Fume Structural Concrete, Shotcrete, Grout, and Slab Overlays
Author(s): J. Wolsieffer and K. Clear
Publication: Special Publication
Appears on pages(s): 587-606
Keywords: bonding; chlorides; compressive strength; durability; electrical resistance; field tests; freeze thaw durability; grout; high-strength concretes; lightweight concretes; mix proportioning; permeability; resurfacing; shotcrete; shrinkage compensating cemen
Abstract:Presents the results of laboratory and field tests conducted by the authors over a twelve year period on the long-term durability performance of silica fume based concretes, shotcretes, grouts, and concrete slab overlays. The silica fume mixture proportions varied, from 2 to 22 percent of silica fume by weight of cement, and included normal portland cement, shrinkage compensating cement, normal weight and lightweight aggregates. Laboratory and field specimens were tested for compressive strength, bonding strength, chloride permeability, electrical resistivity, and freezing and thawing durability. The exhibited long-term performance characteristics indicate that silica fume based concretes, shotcretes, and grouts provide excellent protection to embedded reinforcing steel in chloride environments. As the materials age, they become stronger, lower in permeability, and higher in resistivity. Silica fume modified materials produce one of the best cementitious products available for adverse concrete environments.
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