Cement-based composite material, preparation method thereof and floating slab

A composite material and cement-based technology, which is applied to tracks, ballast layers, buildings, etc., to achieve the effects of improving durability and comfort, optimizing layout, and improving durability

Pending Publication Date: 2021-11-26
SHANGHAI SHENTONG METRO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is currently no suitable wet-joint material used to join prefabricated panels

Method used

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  • Cement-based composite material, preparation method thereof and floating slab
  • Cement-based composite material, preparation method thereof and floating slab

Examples

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[0019] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar structures in the drawings, and thus their repeated descriptions will be omitted.

[0020] The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the invention. However, those skilled in the art will appreciate that the technical solutions of the present invention may be practiced without one or more of the specific...

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Abstract

The invention discloses a cement-based composite material, a preparation method thereof and a floating slab. The cement-based composite material comprises a base material, wherein the base material comprises Portland cement, silica fume, mineral powder, fly ash, quartz sand, water and a water reducing agent; a shape memory alloy; and a synthetic fiber. The cement-based composite material can improve the strength and toughness of joint areas among a plurality of plates forming the floating slab and greatly reduce the connecting length, so that the long floating slab can be applied to rail traffic engineering, the problems of an existing floating slab rail structure are solved, and the durability and comfort of the floating slab are greatly improved.

Description

technical field [0001] The present invention relates to a cement-based composite material, a preparation method thereof, and a floating slab using the cement-based composite material. Background technique [0002] The floating slab track structure has good vibration reduction effect and is widely used in rail transit construction. Most of the current floating slab track structures are composed of multiple modular short slabs (with a length not greater than 6 meters) that are connected at the construction site by means of hinges or the like. In the long-term operation process, under the influence of the train load and the surrounding environment, this kind of floating slab track structure is not only prone to fatigue damage, but also greatly reduces the service life of the structure, thereby affecting the safe operation of the train. In addition, due to the hinged connection between multiple modular short boards, it often produces a lot of noise under the action of the train...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04E01B1/00C04B111/52
CPCC04B28/04E01B1/002E01B2204/12E01B2204/09C04B2111/52C04B18/146C04B18/08C04B18/141C04B14/06C04B2103/302C04B14/48C04B20/0068
Inventor 刘加华吴迪郑越段桂平鞠丽艳
Owner SHANGHAI SHENTONG METRO
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