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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: Chloride Penetration in Standard Concrete, Water-Reduced Concrete, and Superplasticized Concrete
Author(s): Walter Lukas
Publication: Special Publication
Appears on pages(s): 253-268
Keywords: air entrainment; chlorides; concretes; consistency
tests; corrosion resistance; deterioration; freeze-thaw durabil-ity;
plasticizers; portland cements; pozzolan cements; segrega-tion;
water-cement ratio; water-reducing agents.
Abstract:Concretes display a chloride penetration which is dependent on several factors. The water-cement ratio exerts the most influence, the penetrated chloride content decreasing with a decrease in the ratio. High quality concrete with a low water-cement ratio has a considerably smaller chloride content than otherconcretes of the same consistency. Superplasticized concrete has a smaller tendency to absorb chloride than untreated concretes of the same water-cement ratio. Cements with pozzolanic additions show increased resistance to chloride diffusion into the concrete. If concretes are air entrained there is a considerable chloride concentration in the upper-most zone. This is due both to the greater segregation tendency and to the air voids themselves.
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