Abstract
According to requirements of the mechanical property, durability quality, working performance for patching materials for bridge and tunnel, the new patching material named high-performance tensile composite mortar (HTCM) has been developed. The HTCM is a product of cement-based mortar modified by polymer. The strength test, shrinkage test, chloride resistance test, carbonization resistance test and working performance test for HTCM are introduced in this paper. According to the test results, the components, characteristics, performance and operational principle of HTCM are listed in this paper. At last, the technical characteristics and advantages for HTCM are also discussed in terms of construction feasibility based on construction technology of sprayed mortar. It has been found that the HTCM can be used as an effective patching material for bridge and tunnel.
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