Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anti-cracking long-life fiber concrete and preparation process thereof
The invention provides an anti-cracking long-life fiber concrete and a preparation process thereof, relates to the technical field of building materials, and aims to solve the problems that the cost is relatively high when steel fibers are independently used or the steel fibers and polyimide fibers are cooperatively used, the fibers are difficult to uniformly disperse in the concrete, and part of the defects cannot be overcome. According to the present invention, the problems of 176 parts of water, 910 parts of river sand, 726 parts of broken stone, 356 parts of Portland fly ash cement, 4.6 parts of basalt fiber, 23.5 parts of steel fiber, 18 parts of silica fume, 0.347-1.39 parts of a high efficiency water reducing agent, 10.68-21.36 parts of a composite early strength agent, 28.48-42.72 parts of an expanding agent, and 1.78-14.24 parts of an accelerator are solved. The basalt fiber and the steel fiber are matched for use, the advantages of high modulus of the steel fiber and high tensile strength of a single fiber can be played, expansion of cracks is prevented, the defects that the steel fiber is prone to caking, not beneficial to stirring, difficult to construct, prone to rusting, poor in durability and large in dead weight during stirring are overcome, and the basalt fiber and the steel fiber supplement each other.
本发明提供一种防裂长寿命纤维混凝土及其制备工艺，涉及建筑材料技术领域，以解决钢纤维单独使用或者钢纤维与聚酰亚胺纤维配合使用的成本相对都较高，在混凝土中均匀分散这些纤维比较困难，并不能克服钢纤维的部分缺点，同时对人体呼吸系统和皮肤有一定的刺激的问题，水176份、河沙910份、碎石726份、粉煤灰硅酸盐水泥356份、玄武岩纤维4.6份、钢纤维23.5份、微硅粉18份、高效减水剂0.347‑1.39份、复合型早强剂10.68‑21.36份、膨胀剂28.48‑42.72份，速凝剂1.78‑14.24份。本发明中通过玄武岩纤维与钢纤维的配合使用，可以发挥钢纤维的高模量和单根的高抗拉强度的优势，阻止了裂缝的扩展，又克服了钢纤维搅拌时易结团，不利于搅拌，难以施工且易锈蚀、耐久性差，钢纤维自重大的缺点，与钢纤维相辅相成。
Anti-cracking long-life fiber concrete and preparation process thereof
The invention provides an anti-cracking long-life fiber concrete and a preparation process thereof, relates to the technical field of building materials, and aims to solve the problems that the cost is relatively high when steel fibers are independently used or the steel fibers and polyimide fibers are cooperatively used, the fibers are difficult to uniformly disperse in the concrete, and part of the defects cannot be overcome. According to the present invention, the problems of 176 parts of water, 910 parts of river sand, 726 parts of broken stone, 356 parts of Portland fly ash cement, 4.6 parts of basalt fiber, 23.5 parts of steel fiber, 18 parts of silica fume, 0.347-1.39 parts of a high efficiency water reducing agent, 10.68-21.36 parts of a composite early strength agent, 28.48-42.72 parts of an expanding agent, and 1.78-14.24 parts of an accelerator are solved. The basalt fiber and the steel fiber are matched for use, the advantages of high modulus of the steel fiber and high tensile strength of a single fiber can be played, expansion of cracks is prevented, the defects that the steel fiber is prone to caking, not beneficial to stirring, difficult to construct, prone to rusting, poor in durability and large in dead weight during stirring are overcome, and the basalt fiber and the steel fiber supplement each other.
本发明提供一种防裂长寿命纤维混凝土及其制备工艺，涉及建筑材料技术领域，以解决钢纤维单独使用或者钢纤维与聚酰亚胺纤维配合使用的成本相对都较高，在混凝土中均匀分散这些纤维比较困难，并不能克服钢纤维的部分缺点，同时对人体呼吸系统和皮肤有一定的刺激的问题，水176份、河沙910份、碎石726份、粉煤灰硅酸盐水泥356份、玄武岩纤维4.6份、钢纤维23.5份、微硅粉18份、高效减水剂0.347‑1.39份、复合型早强剂10.68‑21.36份、膨胀剂28.48‑42.72份，速凝剂1.78‑14.24份。本发明中通过玄武岩纤维与钢纤维的配合使用，可以发挥钢纤维的高模量和单根的高抗拉强度的优势，阻止了裂缝的扩展，又克服了钢纤维搅拌时易结团，不利于搅拌，难以施工且易锈蚀、耐久性差，钢纤维自重大的缺点，与钢纤维相辅相成。
Anti-cracking long-life fiber concrete and preparation process thereof
一种防裂长寿命纤维混凝土及其制备工艺
XU CHUNLEI (Autor:in) / HU JIA (Autor:in) / XU WENWEN (Autor:in)
30.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Anti-cracking high-toughness long-life special fiber concrete and preparation process thereof
| Europäisches Patentamt | 2021
Anti-cracking concrete and preparation process thereof
| Europäisches Patentamt | 2021
Anti-cracking concrete and preparation process thereof
| Europäisches Patentamt | 2021
Anti-cracking asphalt concrete and preparation process thereof
| Europäisches Patentamt | 2020
Anti-cracking special fiber concrete and preparation method thereof
| Europäisches Patentamt | 2022