Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of ultrahigh-performance fiber toughened cement-based composite material
The invention relates to the technical field of ultra-high performance concrete, and provides a preparation method of an ultra-high performance fiber toughened cement-based composite material, the method mainly comprises aggregate modification, fiber modification and scientific calculation proportioning, the scientific calculation proportioning utilizes a close packing theory, and a UHPC proportioning calculation method is autonomously designed. Due to the difference of the particle sizes of all the material particles, the raw materials achieve the best compounding of chemical components and physical properties, the UHPC is endowed with an extremely compact and uniform microstructure, the cementing material achieves a good hydration compaction effect, and an interface transition area between aggregate and a matrix is improved. After the UHPC is condensed and hardened, the generation of hydration products can be promoted, the enrichment and orientation of calcium hydroxide in an interface transition region are solved, and the prepared UHPC has excellent mechanical properties and durability.
本发明涉及超高性能混凝土技术领域，提供一种超高性能纤维增韧水泥基复合材料制备方法，其方法主要包括骨料改性、纤维改性和科学计算配比，其中科学计算配比利用紧密堆积理论，自主设计一种UHPC配比计算方法，解决原材料种类繁多，各材料颗粒粒径差异，使原材料达到最佳的化学成分与物理性能的复合，赋予UHPC极其致密和均匀的微观结构，且胶凝材料实现了良好的水化密实效果，并改善了骨料与基体之间界面过渡区。UHPC凝结硬化后，可促进水化产物的生成，解决界面过渡区氢氧化钙的富集和取向性，使制备出的UHPC具有优异的力学性能及耐久性。
Preparation method of ultrahigh-performance fiber toughened cement-based composite material
The invention relates to the technical field of ultra-high performance concrete, and provides a preparation method of an ultra-high performance fiber toughened cement-based composite material, the method mainly comprises aggregate modification, fiber modification and scientific calculation proportioning, the scientific calculation proportioning utilizes a close packing theory, and a UHPC proportioning calculation method is autonomously designed. Due to the difference of the particle sizes of all the material particles, the raw materials achieve the best compounding of chemical components and physical properties, the UHPC is endowed with an extremely compact and uniform microstructure, the cementing material achieves a good hydration compaction effect, and an interface transition area between aggregate and a matrix is improved. After the UHPC is condensed and hardened, the generation of hydration products can be promoted, the enrichment and orientation of calcium hydroxide in an interface transition region are solved, and the prepared UHPC has excellent mechanical properties and durability.
本发明涉及超高性能混凝土技术领域，提供一种超高性能纤维增韧水泥基复合材料制备方法，其方法主要包括骨料改性、纤维改性和科学计算配比，其中科学计算配比利用紧密堆积理论，自主设计一种UHPC配比计算方法，解决原材料种类繁多，各材料颗粒粒径差异，使原材料达到最佳的化学成分与物理性能的复合，赋予UHPC极其致密和均匀的微观结构，且胶凝材料实现了良好的水化密实效果，并改善了骨料与基体之间界面过渡区。UHPC凝结硬化后，可促进水化产物的生成，解决界面过渡区氢氧化钙的富集和取向性，使制备出的UHPC具有优异的力学性能及耐久性。
Preparation method of ultrahigh-performance fiber toughened cement-based composite material
一种超高性能纤维增韧水泥基复合材料制备方法
SUN YUEFENG (Autor:in) / HUANG SHUAI (Autor:in) / ZU GUOJIA (Autor:in) / LIU CHENGJING (Autor:in) / RUAN YANG (Autor:in) / LANG ZHAOBIN (Autor:in)
02.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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