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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: Shrinkage Behavior of Very Dense Cement Pastes
Author(s): J. Kaufmann and T. Matschei
Publication: Special Publication
Appears on pages(s): 853-870
Keywords: cement paste; curing; fibers; shrinkage; ultrafine cement
Abstract:Shrinkage is one of the most important parameters regarding durability and strength of concrete and cement-based building materials. Length changes may introduce cracks that may serve as path ways for gas (CO2, SO2, NOx, 02) and aggressive water (sulphate, chloride) penetration and hence influence the future of a building structure significantly. Material composition (mixture proportioning) and curing conditions, especially early-age curing, govern the length change behavior of a material. Very dense, low w/c-ratio binder systems were investigated. Early age shrinkage, starting immediately after the end of mixing process, and the shrinkage/swelling of hardened cement pastes were measured. The effect of curing conditions, binder composition (limestone filler, ultrafine cement, fly ash) and the addition of short fibers was studied. Their influence on the mechanical properties was determined. Crack formation was analysed by microscopy (ESEM).
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