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Zhang J.-H.,Cheng Mian Le Passenger Dedicated Railway Company Ltd | Yang Y.,Cheng Mian Le Passenger Dedicated Railway Company Ltd | Liu S.-C.,Cheng Mian Le Passenger Dedicated Railway Company Ltd | Sun K.,Cheng Mian Le Passenger Dedicated Railway Company Ltd
Journal of Railway Engineering Society | Year: 2014

Research purposes: This paper analysed the causes of crack of CA mortar of the high-speed railway of CRTS I slab ballastless track. The basic technical requirements of the crack repairing was proposed, the performances of the epoxy resins and the high performance modified resins were compared and studied, such as the construction feasibility, the fill adaptability and the durability. Through the contradistinctive experimental research, the new material of crack repairing of CA mortar was got, which had more construction feasibility, fill adaptability and durability.Research conclusions: (1)Through the comparative analysis, it shows the construction and filling adaptability, RX-SI is suitable for the actual CRTS I CA mortar from the joint construction process. The construction process is simple and feasible.(2)The durability research results show that the elastic modulus, elastic modulus and CA mortar RX-SI perfectly matched, RX-SI can ensure the ballastless track plate repair processing structure safety and durability. (3) The results of the research are specially designed for CRTS I ballastless track CA mortar joints, which can be well widely used in the CRTS I ballastless track CA mortar gap repair. ©, 2014, Journal of Railway Engineering Society. All right reserved.

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