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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: Techniques to Improve Strength of Polymer Concrete Made with Wet Aggregate
Author(s): D. W. Fowler, A. H. Meyer,
and D. R. Paul
Publication: Special Publication
Appears on pages(s): 107-122
Keywords: aggregates; bonding; chemical compounds; coatings;
compressive strength; fibers; methyl methacrylate; moisture con-tent;
polymer concrete; repairs; water content.
Abstract:Potential solutions for improving the strength of poly-mer concrete made with wet aggregate have been investigated in re-search performed for the U.S. Air Force to develop rapid repair methods. Chemical additives, aggregate treatment, and addition of fibers have been evaluated." Moisture contents used in the re-search ranged up to 7 percent, with the maximum values usually 4 to 5 percent. No chemical additives for monomer were identified which provide significant strength increases. Aggregate treatments con-sisted of coated aggregate and moisture absorptive additives for wet aggregate. Aggregates coated with a silane coupling agent pro-vided very good strength even when the moisture content was in ex-cess of 4 percent. Several types of fibers were investigated; hooked steel fibers were found to provide the greatest strength. It was found that the addition of approximately 5 weight percent steel fibers provided good strength increases and ductility.
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