Common rebar is made of unfinished tempered steel, making it susceptible to rusting. Normally the concrete cover is able to provide a pH value higher than 12 avoiding the corrosion reaction. Too little concrete cover can compromise this guard through carbonation from the surface, and salt penetration.
Quick Answer. Maglev trains can reach speeds of up to 361 mph. This was the fastest speed reached by the MLX01, which was measured on December 2, 2003. Executed on the Yamanashi maglev test line in Japan, the test run was administered by the Central Japan Railway Company and the Railway Technical Research Institute. Keep Learning.
The lift and push are provided to the train by the repulsive and attractive forces of magnetism used by this system. The maglev trains that are operating at the present have been designed by the engineers in the preceding decade. A new maglev train has been tested on the Yamanashi Maglev Test Line recently. The most recent maglev train in Japan is known as the LO Series and can run at speeds of up to 311mph (500 km/h). In its first run along the 26.6-miles test track, the train reached its top speed before it touched the 3-mile marker.