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A platform for research: civil engineering, architecture and urbanism
Self-compacting basalt fiber ultra-high performance concrete and preparation method thereof
The invention belongs to the technical field of concrete, and particularly relates to self-compacting basalt fiber ultra-high performance concrete and a preparation method thereof. The concrete comprises the following raw materials in parts by weight: 75-85 parts of cement, 20-25 parts of silica fume, 80-95 parts of quartz sand, 1-2 parts of a water reducing agent, 18-22 parts of water and 3-5 parts of basalt fibers. The preparation method comprises the following steps: mixing and stirring the quartz sand and the cement, mixing and stirring with the basalt fiber, mixing and stirring with the silica fume and the water reducing agent, and mixing and stirring with the water. The dispersity of the fibers in the matrix is improved through the process simple and convenient to operate, and the problems that after the fibers are doped into the concrete matrix, the fluidity is poor, and the strength is slightly improved are effectively solved; the components are reasonably proportioned, the porosity of a concrete matrix is reduced, and the matrix is tighter, so that the strength and the flowability of the concrete are improved; the self-compacting concrete not only has super-strong compressive strength and tensile strength, but also has the self-compacting characteristic that the self-compacting concrete can flow through self gravity without vibration and can completely fill a template.
本发明属于混凝土技术领域，具体涉及一种自密实玄武岩纤维超高性能混凝土及其制备方法。混凝土包括以下重量份数原料：水泥75～85份、硅灰20～25份、石英砂80～95份、减水剂1～2份、水18～22份和玄武岩纤维3～5份；将石英砂与水泥混合搅拌后，与玄武岩纤维混合搅拌，再与硅灰、减水剂混合搅拌，然后与水混合搅拌。本发明通过操作简便的工艺改善纤维在基体中的分散性，有效避免纤维掺入混凝土基体后流动性差、强度提升少的问题；利用各组分合理配比，减小混凝土基体孔隙率，使基体更为紧密，从而提高混凝土强度和流动性；不仅具备超强的抗压强度、抗拉强度，还具有无需振捣，通过自身重力即可流动、完全填充模板的自密实特征。
Self-compacting basalt fiber ultra-high performance concrete and preparation method thereof
The invention belongs to the technical field of concrete, and particularly relates to self-compacting basalt fiber ultra-high performance concrete and a preparation method thereof. The concrete comprises the following raw materials in parts by weight: 75-85 parts of cement, 20-25 parts of silica fume, 80-95 parts of quartz sand, 1-2 parts of a water reducing agent, 18-22 parts of water and 3-5 parts of basalt fibers. The preparation method comprises the following steps: mixing and stirring the quartz sand and the cement, mixing and stirring with the basalt fiber, mixing and stirring with the silica fume and the water reducing agent, and mixing and stirring with the water. The dispersity of the fibers in the matrix is improved through the process simple and convenient to operate, and the problems that after the fibers are doped into the concrete matrix, the fluidity is poor, and the strength is slightly improved are effectively solved; the components are reasonably proportioned, the porosity of a concrete matrix is reduced, and the matrix is tighter, so that the strength and the flowability of the concrete are improved; the self-compacting concrete not only has super-strong compressive strength and tensile strength, but also has the self-compacting characteristic that the self-compacting concrete can flow through self gravity without vibration and can completely fill a template.
本发明属于混凝土技术领域，具体涉及一种自密实玄武岩纤维超高性能混凝土及其制备方法。混凝土包括以下重量份数原料：水泥75～85份、硅灰20～25份、石英砂80～95份、减水剂1～2份、水18～22份和玄武岩纤维3～5份；将石英砂与水泥混合搅拌后，与玄武岩纤维混合搅拌，再与硅灰、减水剂混合搅拌，然后与水混合搅拌。本发明通过操作简便的工艺改善纤维在基体中的分散性，有效避免纤维掺入混凝土基体后流动性差、强度提升少的问题；利用各组分合理配比，减小混凝土基体孔隙率，使基体更为紧密，从而提高混凝土强度和流动性；不仅具备超强的抗压强度、抗拉强度，还具有无需振捣，通过自身重力即可流动、完全填充模板的自密实特征。
Self-compacting basalt fiber ultra-high performance concrete and preparation method thereof
一种自密实玄武岩纤维超高性能混凝土及其制备方法
ZHU MINGQIAO (author) / ZHANG YU (author) / WANG LEIJIA (author) / YU MAN (author) / TAN YIPING (author) / LI MAOSEN (author)
2024-11-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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