Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-performance fiber-reinforced cement-based composite board based on fiber-matrix interface strength treatment and preparation method of high-performance fiber-reinforced cement-based composite board
The invention provides a high-performance fiber-reinforced cement-based composite board based on fiber-matrix interface strength treatment and a preparation method thereof, the fiber-reinforced cement-based composite board is formed by layered pouring of a strength layer and a ductility layer, and the strength layer and the ductility layer have different cement matrix ratios. The strength layer is made of a carbon fiber woven mesh/steel fiber co-reinforced cement-based material with strong interface bonding, and the surface of the carbon fiber woven mesh is subjected to sand blasting treatment and forms a three-dimensional mesh structure with steel fibers. The ductile layer is a PVA fiber reinforced cement-based material with weak interface combination, and the PVA fiber surface is subjected to oil coating treatment. According to the invention, the characteristics of different fibers are effectively utilized, the problem that the utilization rate of the fibers is reduced due to interaction among hybrid fibers is solved, and the deformability and strength of the fiber composite material are remarkably improved, so that the toughness of the material is improved.
本发明提供了一种基于纤维‑基体界面强弱处理的高性能纤维增强水泥基复合板材及其制备方法，该纤维增强水泥基复合板材由强度层与延性层分层浇筑形成，强度层与延性层具有不同水泥基体配比。强度层为强界面结合的碳纤维编织网/钢纤维共同增强水泥基材料，其中碳纤维编织网表面经过喷砂处理并与钢纤维组成三维网状结构。延性层为弱界面结合的PVA纤维增强水泥基材料，PVA纤维表面经过涂油处理。本发明有效的利用了不同纤维的特性，解决了混杂纤维之间的相互作用造成纤维利用率降低的问题，显著地提高了纤维复合材料的变形能力和强度，从而提高材料的韧性。
High-performance fiber-reinforced cement-based composite board based on fiber-matrix interface strength treatment and preparation method of high-performance fiber-reinforced cement-based composite board
The invention provides a high-performance fiber-reinforced cement-based composite board based on fiber-matrix interface strength treatment and a preparation method thereof, the fiber-reinforced cement-based composite board is formed by layered pouring of a strength layer and a ductility layer, and the strength layer and the ductility layer have different cement matrix ratios. The strength layer is made of a carbon fiber woven mesh/steel fiber co-reinforced cement-based material with strong interface bonding, and the surface of the carbon fiber woven mesh is subjected to sand blasting treatment and forms a three-dimensional mesh structure with steel fibers. The ductile layer is a PVA fiber reinforced cement-based material with weak interface combination, and the PVA fiber surface is subjected to oil coating treatment. According to the invention, the characteristics of different fibers are effectively utilized, the problem that the utilization rate of the fibers is reduced due to interaction among hybrid fibers is solved, and the deformability and strength of the fiber composite material are remarkably improved, so that the toughness of the material is improved.
本发明提供了一种基于纤维‑基体界面强弱处理的高性能纤维增强水泥基复合板材及其制备方法，该纤维增强水泥基复合板材由强度层与延性层分层浇筑形成，强度层与延性层具有不同水泥基体配比。强度层为强界面结合的碳纤维编织网/钢纤维共同增强水泥基材料，其中碳纤维编织网表面经过喷砂处理并与钢纤维组成三维网状结构。延性层为弱界面结合的PVA纤维增强水泥基材料，PVA纤维表面经过涂油处理。本发明有效的利用了不同纤维的特性，解决了混杂纤维之间的相互作用造成纤维利用率降低的问题，显著地提高了纤维复合材料的变形能力和强度，从而提高材料的韧性。
High-performance fiber-reinforced cement-based composite board based on fiber-matrix interface strength treatment and preparation method of high-performance fiber-reinforced cement-based composite board
一种基于纤维-基体界面强弱处理的高性能纤维增强水泥基复合板材及其制备方法
ZHOU FEN (Autor:in) / ZHOU RUI (Autor:in) / DU YUNXING (Autor:in)
11.10.2022
Patent
Elektronische Ressource
Chinesisch
PVA-Fiber Reinforced High Performance Cement Board
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| Europäisches Patentamt | 2020
High-strength fiber cement composite board and preparation method thereof
| Europäisches Patentamt | 2020
| British Library Conference Proceedings | 2002