A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Green prestressed ultrahigh-ductility self-healing cement-based sleeper and preparation method thereof
The invention provides a green type prestress ultrahigh ductility self-healing cement-based sleeper. The cement-based sleeper is composed of the reinforcement cage and the ultrahigh-ductility self-healing concrete and is integrally formed through overall pouring, the sleeper is uniform in stress and good in integrity and volume stability, the prepared concrete has the multi-seam cracking characteristic, cracks can protect the reinforcement cage formed by connecting prestressed steel wires in a self-healing mode under water invasion, and the self-healing performance of the concrete is improved. And the chloride ion resistance and freeze-thaw resistance of the sleeper can be improved. And the operation requirements of high-speed railways and heavy haul railways in complex environments can be better met.
本发明提供了一种绿色型预应力超高延性自愈合水泥基轨枕。本发明的水泥基轨枕由钢筋笼和超高延性自愈合混凝土组成，采用整体浇筑一体成型，轨枕受力均匀，整体性和体积稳定性好，制备的混凝土具有多缝开裂特性，且裂缝在水的侵入下，能够自愈合保护由预应力钢丝连接而成的钢筋笼，能够提高轨枕的抗氯离子和抗冻融性能。可以更高的适应复杂环境下高速铁路和重载铁路的运营需求。
Green prestressed ultrahigh-ductility self-healing cement-based sleeper and preparation method thereof
The invention provides a green type prestress ultrahigh ductility self-healing cement-based sleeper. The cement-based sleeper is composed of the reinforcement cage and the ultrahigh-ductility self-healing concrete and is integrally formed through overall pouring, the sleeper is uniform in stress and good in integrity and volume stability, the prepared concrete has the multi-seam cracking characteristic, cracks can protect the reinforcement cage formed by connecting prestressed steel wires in a self-healing mode under water invasion, and the self-healing performance of the concrete is improved. And the chloride ion resistance and freeze-thaw resistance of the sleeper can be improved. And the operation requirements of high-speed railways and heavy haul railways in complex environments can be better met.
本发明提供了一种绿色型预应力超高延性自愈合水泥基轨枕。本发明的水泥基轨枕由钢筋笼和超高延性自愈合混凝土组成，采用整体浇筑一体成型，轨枕受力均匀，整体性和体积稳定性好，制备的混凝土具有多缝开裂特性，且裂缝在水的侵入下，能够自愈合保护由预应力钢丝连接而成的钢筋笼，能够提高轨枕的抗氯离子和抗冻融性能。可以更高的适应复杂环境下高速铁路和重载铁路的运营需求。
Green prestressed ultrahigh-ductility self-healing cement-based sleeper and preparation method thereof
一种绿色型预应力超高延性自愈合水泥基轨枕及其制备方法
ZHOU FENGWANG (author) / WANG HAOYU (author) / WANG JUNYI (author) / LUO XU (author) / WAN XUYAO (author) / YANG WEIPING (author) / ZENG KE (author) / ZHAO XIAOPING (author)
2024-05-17
Patent
Electronic Resource
Chinese
| European Patent Office | 2024
New prestressed concrete sleeper
Engineering Index Backfile | 1950
Prestressed concrete filled steel tube sleeper and preparation method thereof
| European Patent Office | 2023
FIBER-REINFORCED PRESTRESSED REINFORCED CONCRETE SLEEPER
| European Patent Office | 2021
Fiber-reinforced prestressed reinforced concrete sleeper
| European Patent Office | 2022