A multi-fiber composite reinforced concrete and a method of manufacturing the same

By preparing composite reinforced concrete with multiple fibers, the problems of high brittleness and low tensile strength of concrete have been solved. The process of inhibiting microcracks and synergistic reinforcement of the structure have been achieved, which has significantly improved the mechanical properties and durability of concrete.

CN122212593APending Publication Date: 2026-06-16YANTAI GUANGCI DOPE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-13
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing concrete has defects such as high brittleness, low tensile strength, and susceptibility to microcracks. Single fiber reinforcement is difficult to play an effective role in the entire process of microcrack initiation and propagation to macroscopic cracking.

Method used

By using a variety of fibers with different elastic moduli (polymer fibers, glass fibers, basalt fibers, amorphous alloy fibers, and steel fibers) in a specific ratio, combined with optimized cementitious materials and aggregate proportions, and through a preparation method of layered feeding and step-by-step water addition, the fibers are ensured to be uniformly dispersed in concrete and exert a synergistic reinforcing effect.

Benefits of technology

It significantly improves the flexural strength and crack resistance of concrete, extends its service life, and enhances the structural safety and durability of concrete. The flexural strength is increased by 50% to 80%, the crack resistance is increased by 40% to 60%, and the service life is extended by 30% to 50%.

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Abstract

The present application relates to the technical field of concrete, and discloses a kind of multi-fiber composite reinforced concrete, including the following weight parts of components: cementitious material 280~350 parts, aggregate 1200~1500 parts, water 120~160 parts, composite fiber 15~30 parts;Cementitious material is the mixture of Portland cement, fly ash and slag powder, aggregate is the combination of coarse aggregate and fine aggregate, and composite fiber is composed of high molecular fiber, glass fiber, basalt fiber, amorphous alloy fiber and steel fiber.The present application uses five different elastic modulus fibers to form a composite fiber system, effectively inhibits the whole process of concrete micro-crack initiation, expansion to macro-cracking, and has a significant synergistic effect.Compared with ordinary concrete, the flexural strength of the present application is increased by 50%~80%, the crack resistance is increased by 40%~60%, and the service life is extended by 30%~50%.
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