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.
Shanghai Maglev Train. The Shanghai Maglev Train or Shanghai Transrapid (Chinese: ä¸æµ·ç£æµ®ç¤ºèè¿è¥çº¿) is a magnetic levitation train, or maglev line that operates in Shanghai, China. The line was the third commercially operated magnetic levitation line to open in history. It is the fastest commercial high-speed electric train in the world.