End anchor type spiral steel fire and manufacturing and processing method thereof

Abstract

The invention discloses an end anchor type spiral steel fire and a manufacturing and processing method thereof. The steel fiber comprises a middle section and anchoring ends arranged at two ends of the middle section, wherein the anchoring ends are connected to the middle section through smooth transitional sections; the middle section, the anchoring ends and the smooth transitional sections are integrally formed through a steel wire; the middle section is spiral and is formed by rolling the steel wire into a sheet body with the waist-shaped cross section and twisting the sheet body spirally.The manufacturing and processing method of the steel fiber comprises the following steps: clamping and fixing the steel wire; rolling the middle section of the steel fiber; twisting the middle sectionof the steel fiber spirally; and cutting the steel fiber. By adopting the steel fiber of the structure, the bonding and anchoring properties of the steel fiber with a concrete base body are excellent, so that the strength of a high-strength steel product can be exerted fully; moreover, in the mixing construction process of the fiber concrete, the concrete cannot be agglomerated easily, the dispersing property is better, and the strengthening and toughening effects of the high-strength steel fiber on the concrete can be improved remarkably.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a novel end-anchored spiral steel fiber and a manufacturing method thereof. Background technique [0002] Steel fiber reinforced concrete is a new type of multiphase composite material formed by mixing random distributed short steel fibers into ordinary concrete. These randomly distributed steel fibers can effectively prevent the expansion of micro-cracks and the formation of macro-cracks in the concrete caused by shrinkage and plastic deformation, and significantly improve the tensile, bending, impact and fatigue properties of concrete. ductility, toughness and durability. Therefore, as an important modified concrete, steel fiber reinforced concrete is playing an increasingly important role in engineering practice. [0003] Fiber spacing theory, composite material theory and a large number of experimental studies have shown that the reinforcement and toughening effect of stee...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a new type of end-anchored helical Type steel fiber and its production and processing method have excellent bonding and anchoring properties with the concrete matrix, can give full play to the strength of high-strength steel, and are not easy to form agglomerates in the process of fiber concrete mixing and construction, and have good dispersion, which can significantly improve the performance of high-strength steel. Strengthening and Toughening Effect of Fiber on Concrete

Images