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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: Air-Void Parameters Developed by Air-Entraining Admixtures, as Influenced by Soluble Alkalies from Fly Ash and Portland Cement
Author(s): Michael F. Pistilli
Publication: Journal Proceedings
Appears on pages(s): 217-222
Keywords: admixtures; air-entrained concretes; air-entraining agents; air entrainment;alkalies; fly ash; freeze-thaw durability; portland cements; solubility.
Abstract:This investigation concerns performance of two types of air-entraining admixtures in concrete containing higher-than-normal amounts of soluble afkaties. The high available-alkali levels were produced by increasing the amount of a Class C fIy ash, which has a high soluble alkali content. Data are also supplied showing the effect qf alkali content from Portland cement on the air-void system. Air-entraining admixtures were evaluated on the basis of their capacity to produce high-quality air-void parameters to insure better potential freeze-thaw durability of hardened concrete. The products containing neutralized VIIISO~ resin demonstrated a positive correlation between soluble alkali content and increased average chord intercept. Air-void parameters of the concrete containing specific types of suffonated hydrocarbons were considerably less affected by the available alkali contents.
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