A kind of non-metallic reinforcing rib for track slab and preparation method thereof

Abstract

The invention discloses a non-metal reinforcing rib for a track plate and a preparation method thereof. The non-metal reinforcing rib has a concrete solidified structure containing fiber ropes, the fiber ropes have woven structures of fiber strings woven from twisting fiber wires of organic long fibers, AR type glass long fibers and basalt long fibers, and the fiber wires contain thermosetting polymer gel. The non-metal reinforcing rib provided by the invention effectively combines the physical properties of metal materials, has the characteristics of high structural strength, high toughness,high impact strength, high firmness and the like, and can effectively replace a metal material reinforcing rib used in the track plate forming structure; moreover, the track plate manufactured by thereinforcing rib provided by the invention has the characteristics of light weight, low cost and the like, does not generate the problem of electromagnetic induction in the service of a manufactured track plate, is beneficial to reducing the radiation pollution of the electromagnetic induction to the surrounding environment in the operation of the track traffic, further is beneficial to improving the communication safety in the operation of the track traffic, and is economical, reliable and practical.

Description

technical field [0001] The invention relates to a composite material, in particular to a non-metallic fiber composite reinforcing rib for track slabs and a preparation method for the reinforcing rib. Background technique [0002] The track slab is a concrete slab structure used to support and fix rails in rail transit engineering. It is used as an under-rail component to distribute the load transmitted by the train through the rails to the base. Although the track slab is a concrete product, its design strength is high, which is quite different from conventional concrete products, especially in the manufacturing process. [0003] In order to improve the structural strength and firmness of the track slab, a reinforcing rib structure is laid in the forming structure of the track slab. The reinforcing rib structure is a mesh structure in which several reinforcing ribs are densely arranged vertically and horizontally. Usually, the reinforcement mesh in the track slab is formed ...

AI Technical Summary

Problems solved by technology

However, the industry has been suffering from the inability to effectively manufacture fiber materials into compact strip-shaped rib structures with high structural strength, high toughness, and high impact strength, so that it is impossible to produce pure fiber composite structure ribs for track slabs. The prepared reinforcement is usually formed with a composite structure of fiber and steel bar, such as "a kind of FRP prestressed tendon ballastless track slab and its preparation method" disclosed in Chinese patent literature (publication number CN 107443542, published on December 2017 March 8), "A fiber-metal composite rib bed board" (publication number CN 207091833, published on March 13, 2018), "a track board" (publication number CN 207091831, published on March 13, 2018), "Anti-freeze track slab based on carbon fiber concrete" (publication number CN 207435818, published on June 01, 2018) and so on, these composite structural reinforcements with fibers and steel bars as track slabs also have the existence of a single steel bar as a reinforcement The technical problem is that the formed track slab is not only heavy in weight and high in cost, but also the track slab will cause high electromagnetic induction to the reinforcement rib during the service process, which will affect the communication security of the train during operation

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