Rubber granular concrete sleeper

A technology of rubber granules and concrete, which is applied in the field of rail transit, to achieve the effect of facilitating tension, reducing self-weight, and reducing pollution

Pending Publication Date: 2018-12-07
RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In view of this, the present invention provides a rubber particle concrete sleeper, which improves the toughness of the concrete, improves the impact resistance and fatigue resistance of the concrete sleeper, and at the same time increases the elasticity of the concrete while reducing the strength of the concrete sleeper. The impact damage of the load on the ballast reduces the workload of railway maintenance and repair

Method used

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Embodiment Construction

[0032] The following clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] Such as Figure 1-3 As shown, the embodiment of the present invention discloses a rubber particle concrete sleeper, including a reinforced concrete sleeper 1, the reinforced concrete sleeper 1 is laid on a ballast bed, and rubber particles 2, which are blended in the reinforced concrete sleeper 1 , and the rubber particles 2 are distributed irregularly in the reinforced concrete sleeper 1. The microelastic effect of the rubber particles 2 of the present invention can change the stress redistribution inside the reinforced con...

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Abstract

The invention discloses a rubber particle concrete sleeper, which comprises a reinforced concrete sleeper, wherein the reinforced concrete sleeper is laid on a ballasted track bed, further comprisingrubber particles, the rubber particles are mixed in the reinforced concrete sleeper, and the rubber particles are irregularly distributed in the reinforced concrete sleeper. As a result of the micro-elastic action of the rubber particles, the impact resistance and fatigue resistance of the reinforced concrete sleeper can be remarkably improved, and the reinforced concrete sleeper has good toughness; moreover, the stress redistribution inside the reinforced concrete can be changed by using the rubber particles, the volume stability of the reinforced concrete can be improved, and the service life can be prolonged.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a rubber particle concrete sleeper. Background technique [0002] Concrete sleepers are concrete products used as railway sleepers. Cement, sand, stone, water and admixture are mixed in a certain proportion to form a mixture and injected into the combined model equipped with steel wire or steel bar and sleeper accessories, using vibration forming or loading vibration forming, steam curing, loosening steel wire or steel bar, Concrete sleeper products made by cutting the ends of sleepers, etc., have the advantages of high bearing capacity, strong stability, and good track smoothness. [0003] However, existing common reinforced concrete sleepers have the following disadvantages: [0004] (1) Ordinary reinforced concrete sleepers have high rigidity. In the railway line, during the interaction process of the wheel and rail, the impact energy transmitted to the concrete sleeper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B3/42
CPCE01B3/42
Inventor 尤瑞林王树国井国庆范佳刘伟斌杜运昌杜香刚谭振宇
Owner RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI
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