Conductive asphalt concrete for healthy self-diagnosis on ballastless track and preparation method

Abstract

The invention discloses conductive asphalt concrete for healthy self-diagnosis on a ballastless track and a preparation method, relating to the technical field of ballastless tracks of high speed railways. The conductive asphalt concrete for the healthy self-diagnosis on the ballastless track is prepared from aggregate, asphalt, graphite, carbon fiber and mineral powder. The preparation method ofthe conductive asphalt concrete for the healthy self-diagnosis on the ballastless track comprises the following steps: drying the aggregate firstly, afterwards, adding carbon fiber, adding the asphaltinto a mixture, stirring, then adding the mineral powder to stir the graphite, carrying out molding on an obtained mixture and molding a test piece. According to the conductive asphalt concrete for the healthy self-diagnosis on the ballastless track and the preparation method provided by the invention, warning can be performed timely when a roadbed body generates local distortion, the roadbed body can be timely renovated, the train running safety is guaranteed, and the service life of the roadbed is prolonged.

Description

technical field [0001] The invention belongs to the technical field of ballastless tracks of high-speed railways, and relates to conductive asphalt concrete for performing health self-diagnosis on ballastless tracks and a preparation method thereof. Background technique [0002] In July 2016, the National Development and Reform Commission issued the "Medium and Long-Term Railway Network Plan", which stated that in the next 15 years, the total mileage of high-speed railways will double that of 2015. High-speed railway construction technology is also an advanced construction frontier technology that is clearly prioritized in the "National Medium and Long-Term Science and Technology Development Plan (2006-2020)". The vitality of high-speed railway is reflected in its high speed, high density, high comfort and high safety. To achieve fast, comfortable and safe, you need a smooth and stable line, which requires strict control of the settlement and deformation of the structure bel...

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Problems solved by technology

[0005] In order to achieve the above purpose, the present invention provides a conductive asphalt concrete and a preparation method for self-diagnosing the health of the ballastless track, which solves the unsafe, time-consuming and labor-intensive health monitoring of the under-rail foundation in the operation phase of the high-speed railway in the prior art, and cannot Timely detection of the settlement deformation of the foundation structure under the rail, the problem can only be discovered when the settlement deformation reacts to the track slab

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