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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: Studies of Polymer Cement Mortar for use as Permanent Forms
Author(s): K. Horii, T. Tsutsuzaki and K. Kohno
Publication: Special Publication
Appears on pages(s): 747-764
Keywords: curing; colors (materials); durability; polymers, mortars (materials);
plastics and resins; precast concrete; slags; sands
Abstract:The purpose of this paper is to develop pre-casting permanent forms which are effective in improving the durability and appearance of concrete structure, conserving wood and modernizing cast-in-place concrete work. The influences of various materials used and accelerated curing methods on the properties of PCM(polymer cement mortar) applied to the forms were investigated. In these experiments, polymer dispersions composed of SA(styrene-acryl), PAE(polyacrylic ester), EVA(ethylene-vinyl acetate) and SBR(styrene-butadiene rubber) were used. Mixtures contained aggregate ; crushed silica and ferro-nickel slag sand, cement ; normal Portland, high-early strength portland and white portland cement, and color pigment ; red, green, yellow and black color pigment, were used. Steam curing and oven-dry curing were carried out. The fluidity, compressive strength, flexural strength, resistance to abrasion, chloride ion penetration, carbonation and sulfate, and surface color of PCM were examined. From these investigations, the following conclusions can be obtained. The use of SA type polymer, ferro-nickel slag sand, high-early strength portland cement and color pigments were effective in getting PCM with high fluidity, mechanical strength, durability and tinting strength. Additionally, steam curing and oven-dry curing are practical for the early-age strength development of PCM.
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