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Teutsch, Manfred. Fibre concrete in concrete and precasting plants. Revista de Engenharia: Estudo e Pesquisa, Juiz de Fora, v. 2, n. 1, p. 11-2, jan./jun. 1999.
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Abstract

Fibre concrete is currently manufactured with steel, glass, synthetics, cellulose and carbon fibers. For many decades, asbestos fibers were successfully used in factory fabricated concrete products. Due to the dangers to health that exist during processing, asbestos fibers are no longer used. Glass fibers are made of molten glass by special industrial process. For processing with cement, the fibers must be alkali-resistant (e.g. Cemfil fibers). They are used in thin-walled components (e.g. pipes, sewers, containers, cladding panels). Synthetic fibers are mainly made of polypropylene (PP), nylon or aromatic polyamides. The fibers are alkali-resistant. Their manufacture and fields of application are similar to those of glass fibers. Carbon fibers are expensive and are used only in special cases in solid structures. Cellulosic fibers, too, have only a restricted field of application. They consist in general of untreated natural fibers (cotton, hemp, sisal) and must be specially treated to become sufficiently alkali-resistant and acquire low-water absorption properties. They are often used as a substitute for asbestos fibers. Steel fibers are primarily used for manufacturing Fibre concrete. For this reason, the observations that follow will focus on this particular type of Fibre concrete; they can however, also be applied to other types of fiber.
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