China is the land of the “fast track” on longer routes. With the ever expanding high-speed rail network, the country intends to link large cities together, increase traffic capacity and strengthen the domestic economy by establishing connections to neglected regions. Despite the focus on “faster” and “further”, safety should not be overlooked.

Eight high-speed rail networks which connect the North and South as well as the East and West have been operated for several years. These tracks are currently in a state that requires maintenance and repair. The fischer epoxy mortar FIS EM 390 S is used for the preventative reinforcement of carriageway slabs, as well as for the foundations of track switch and base plates. The work affects the main routes of the railway network with high-speed tracks between Shanghai and Hangzhou, Nanjing and Hangzhou, Peking and Shanghai, Hangzhou and Ningbo and Hangzhou and Changsha.

The project is lead by the China Railway Shanghai Bureau. “Those responsible are placing extremely strict requirements on the performance of products in order to ensure the effectiveness of anchoring components, even in the event of cracks in the carriageway slabs or base plates”, says Jiang Zong, Managing Director of fischer China, describes the challenges. “Our FIS EM 390 S meets these high demands with its various properties, such as its strong retaining forces and its resistance to water, heat and humidity, whether in frosty or warm temperatures.” This is of high importance due to the sub-zero temperatures that prevail in the North and in the North-Eastern provinces of China, and the extremely hot and humid climate experienced in the South and in the Eastern regions on the coast. This must be taken into consideration during the planning, maintenance and inspection of both infrastructure and vehicles.
 
The fischer injection mortar FIS EM 390 S reaches particularly high load capacities in concrete and can withstand extreme conditions, such as the case in China. It is processed with reinforced bars and suitable system components, such as the fischer threaded rod FIS A or the fischer internal threaded anchor RG M I. The epoxy mortar can also be used in water-filled drill holes and in seismic areas. In addition, it has a very high level of resistance to corrosion and fire. Overall, therefore, it is a safe choice for the maintenance of tracks in China, but also, for example, for the fixing of new tracks or for underwater assembly.

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