Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
All-component micron-sized seawater and sea sand ultra-high-performance concrete as well as preparation method and application thereof
The invention discloses all-component micron-sized seawater and sea sand ultra-high-performance concrete as well as a preparation method and application thereof. According to the invention, a micron-sized cement, fly ash and silica fume ternary composite cementing material system and micron-sized coarse, medium and fine matched sea sand are used to form a concrete matrix with a dense skeleton structure, high chloride ion adsorption capacity and low free chloride ion content; a widely-distributed heat-conducting, reinforcing and toughening network is formed in a concrete matrix by doping molybdenum-chromium stainless steel and stainless steel microwires with micron-sized diameters; the composite use of the stainless steel microwires and the high-activity micron-sized silica fume/fly ash can strengthen an interface and increase the quantity of C-S-H gel in a hydration product so as to continuously reduce the content of free chloride ions, so that the seawater and sea sand ultra-high performance concrete has the advantages of compact microstructure, low free chloride ion content, high strength and high toughness, and can be used for preparing the concrete. And the method can be used for port engineering or maritime engineering concrete structures.
本发明公开了一种全组分微米级海水海砂超高性能混凝土、制备方法及应用。本发明通过使用微米级水泥、粉煤灰、硅灰三元复合胶凝材料体系和微米级粗、中、细搭配海砂形成具有骨架密实结构及高氯离子吸附能力、低自由氯离子含量的混凝土基体，并通过掺入材质为钼铬不锈钢和直径为微米级的不锈钢微丝在混凝土基体内形成广泛分布的导热、增强及增韧网络，不锈钢微丝和高活性微米级的硅灰/粉煤灰复合使用可强化界面并增加水化产物中的C‑S‑H凝胶的数量以持续降低自由氯离子的含量，进而使得海水海砂超高性能混凝土具有密实微观结构、低自由氯离子含量、高强度及高韧性，并可用于港工或海工混凝土构筑物。
All-component micron-sized seawater and sea sand ultra-high-performance concrete as well as preparation method and application thereof
The invention discloses all-component micron-sized seawater and sea sand ultra-high-performance concrete as well as a preparation method and application thereof. According to the invention, a micron-sized cement, fly ash and silica fume ternary composite cementing material system and micron-sized coarse, medium and fine matched sea sand are used to form a concrete matrix with a dense skeleton structure, high chloride ion adsorption capacity and low free chloride ion content; a widely-distributed heat-conducting, reinforcing and toughening network is formed in a concrete matrix by doping molybdenum-chromium stainless steel and stainless steel microwires with micron-sized diameters; the composite use of the stainless steel microwires and the high-activity micron-sized silica fume/fly ash can strengthen an interface and increase the quantity of C-S-H gel in a hydration product so as to continuously reduce the content of free chloride ions, so that the seawater and sea sand ultra-high performance concrete has the advantages of compact microstructure, low free chloride ion content, high strength and high toughness, and can be used for preparing the concrete. And the method can be used for port engineering or maritime engineering concrete structures.
本发明公开了一种全组分微米级海水海砂超高性能混凝土、制备方法及应用。本发明通过使用微米级水泥、粉煤灰、硅灰三元复合胶凝材料体系和微米级粗、中、细搭配海砂形成具有骨架密实结构及高氯离子吸附能力、低自由氯离子含量的混凝土基体，并通过掺入材质为钼铬不锈钢和直径为微米级的不锈钢微丝在混凝土基体内形成广泛分布的导热、增强及增韧网络，不锈钢微丝和高活性微米级的硅灰/粉煤灰复合使用可强化界面并增加水化产物中的C‑S‑H凝胶的数量以持续降低自由氯离子的含量，进而使得海水海砂超高性能混凝土具有密实微观结构、低自由氯离子含量、高强度及高韧性，并可用于港工或海工混凝土构筑物。
All-component micron-sized seawater and sea sand ultra-high-performance concrete as well as preparation method and application thereof
全组分微米级海水海砂超高性能混凝土、制备方法及应用
DONG SUFEN (Autor:in) / YU FENG (Autor:in) / DING SIQI (Autor:in) / HAN BAOGUO (Autor:in) / OU JINPING (Autor:in)
24.02.2023
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2024
Seawater coral sand ultra-high performance concrete and preparation method thereof
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2024
Ultrahigh-performance seawater coral sand concrete and preparation method thereof
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2020