Fiber-reinforced prestressed reinforced concrete sleeper

A method for manufacturing a fiber-reinforced prestressed reinforced concrete sleeper comprising, a sleeper body and two rail bearing regions, wherein the fiber-reinforced prestressed reinforced concrete sleeper is integrally cast;

• a rail clamping base is arranged on a surface of each of the two rail bearing regions;
• the two rail bearing regions are located under rails on both sides of the fiber-reinforced prestressed reinforced concrete sleeper, respectively, and the two rail bearing regions are located above the sleeper body;
• a reinforcing fiber is mixed into the two rail bearing regions, and a reinforcing rib is arranged in the sleeper body;
• the reinforcing fiber is concentrated in a main stress region under the surface of the each rail bearing region, wherein
• the reinforcing fiber is unevenly arranged according to a stress on the fiber-reinforced prestressed reinforced concrete sleeper, and the reinforcing fiber arranged in a region with a large stress is more than the reinforcing fiber arranged in a region with a small stress wherein the method comprising:
• simultaneously pouring a pure concrete and a mixture with a maximum reinforcing fiber ratio to form the two rail bearing regions according to preset reinforcing fiber ratios of different regions, wherein discharging speeds of the pure concrete pouring and the mixture with the maximum reinforcing fiber ratio pouring are each controlled to realize the preset reinforcing fiber ratios of the two rail bearing regions.