Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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 (Autor:in) / WANG HAOYU (Autor:in) / WANG JUNYI (Autor:in) / LUO XU (Autor:in) / WAN XUYAO (Autor:in) / YANG WEIPING (Autor:in) / ZENG KE (Autor:in) / ZHAO XIAOPING (Autor:in)
17.05.2024
Patent
Elektronische Ressource
Chinesisch
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