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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: Cement Mortar Reinforced with Natural Fibers
Author(s): Jose Castro and Antoine E. Naaman
Publication: Journal Proceedings
Appears on pages(s): 69-78
Keywords: ferrocement; fiber reinforced concretes; fibers; flexural strength;
mix proportioning; mortars (material); natural fibers; tensile strength.
Abstract:The relatively high cost of man-made fibers and wire meshes used in fiber reinforced concrete and ferrocement, combined with a reduction in the usage of asbestos fibers, make it necessary to evaluate natural fibers as possible substitutes. This is particularly true in some low-cost housing applications, such as those used in Mexico, where the cost of the reinforcement represents a major portion of the total cost. Some natural fibers of the agave family, which are widely available in Mexico, show surprisingly high mechanical properties; yet little effort has been devoted so far to using them efficiently. This paper describes the results of a cooperative research project to study the use of natural agave fibers as possible reinforcement for portland cement-based matrixes. The following questions are answered: I) What are the essential mechanical properties of these fibers? 2) What are the difficulties encountered in mixing them with a mortar matrix.3 3) What are the optimum and practical maximum amounts of fibers that can be mixed? 4) Can a composite showing an elasto-plastic behavior (or better) under loading accompanied by multiple cracking be obtained? 5) Does the composite have a fairly good durability under various environmental exposures? The results so far are very encouraging and necessitate further systematic research in the use of natural fibers.
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