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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: Normal Weight and Total-Lightweight High-Strength Concretes: A Comparative Study
Author(s): M. Berra and G. Ferrerra
Publication: Special Publication
Appears on pages(s): 701-734
Keywords: compressive strength; crushed stone; density (mass/volume); ductility; high-strength concretes; lightweight aggregate concretes; fly ash; lightweight aggregates; modulus of elasticity; permeability; plasticizers; silica fume; tensile strength; thermal pro
Abstract:Reports on high-strength lightweight and normal weight concretes. Sintered fly ash lightweight aggregates, crushed limestones, and two types of cement with different contents were investigated. All the concretes contained silica fume and a high-range water-reducing admixture. To obtain high specific strengths (i.e., ratio of strength to relative density), lightweight concretes were prepared with only lightweight particles (coarse and fine), reaching strengths higher than 60 MPa with density of about 1700 kg/m3. The results of physical (permeability, thermal conductivity, thermal diffusivity, and thermal expansion coefficient) and mechanical (compression, direct tension, direct shear, modulus of elasticity, bond strength, fracture energy, and compression softening behavior) tests, carried out on specimens cured for different ages at two curing conditions (20 C and 95 and 50 percent relative humidity, respectively), are reported and discussed.
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