The ballastless track uses mixed materials such as concrete and asphalt, and the overall foundation replaces the small gravel track structure. It is currently the most advanced track technology in the world. Another name is called ballastless track. Ballastless track avoids Ballast splashing, good smoothness, good stability, long service life, good durability, less maintenance work and other advantages.
The ballastless track slab is made of concrete. We all know that concrete is a volume-sensitive material with poor conductivity. The cement will release a lot of heat during the hydration process. At the initial stage of pouring, the concrete The elasticity and strength of concrete are relatively low, and the strain constraint force generated by the sharp temperature rise in the hydration process is not large, and the temperature strain constraint force is of course relatively small: as the age of concrete increases, its elasticity and strength increase accordingly , the binding force on the temperature change of the concrete is getting stronger and stronger, that is, it will generate a huge temperature and strain force. If the tensile elasticity and strength of the concrete cannot resist the temperature strain force at this time, the temperature will be generated. crack.
Cracks in the concrete have a relatively large impact on the ballastless track slab. In order to strengthen the strength of the concrete, an electric heating steam generator can be used to cure the concrete. The electric heating steam generator can be adjusted according to the temperature of the surrounding environment, which can reduce the size of the concrete. The temperature difference between core temperature and surface temperature, surface temperature and ambient temperature.
Nobeth electric heating steam generator has fast steam production, sufficient steam volume, separation of water and electricity, high safety performance, and one-button operation, which is convenient and quick, and improves the efficiency of production and maintenance.
The ballastless track slab is maintained by an electric heating steam generator, which can reduce and avoid concrete cracks, improve the strength and quality of warm concrete, and has excellent performance in track slab maintenance.