Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses refractory reactive powder concrete and a preparation method thereof. The refractory reactive powder concrete comprises Portland cement, nanometer silica powder, mineral powder, quartz sand, steel fibers, a composite water reducing agent, water and organic fibers, the organic fibers are mixtures of polypropylene crude fibers and polypropylene fine fibers, and the mass ratio of the polypropylene crude fibers to the polypropylene fine fibers is (1-3): (1-3). The preparation method comprises the following steps: preparing the composite water reducer; uniformly stirring and mixing the Portland cement, the nano silica powder, the silica fume and the quartz sand, and adding the steel fibers and the organic fibers while stirring; then adding a composite water reducing agent and water, and stirring; and finally, molding the stirred mixture into a prefabricated part. The fire endurance of a building component made of the reactive powder concrete can be improved, so that the fire endurance grade of a whole building is improved, and the safety of the building is ensured.
本发明公开了一种耐火活性粉末混凝土及其制备方法。所述耐火活性粉末混凝土包括硅酸盐水泥、纳米硅微粉、矿粉、石英砂、钢纤维、复合减水剂、水及有机纤维，且所述有机纤维为聚丙烯粗纤维和聚丙烯细纤维的混合物，所述聚丙烯粗纤维和聚丙烯细纤维的质量比为(1‑3)：(1‑3)。制备时，先制备复合减水剂；然后将硅酸盐水泥、纳米硅微粉、硅灰和石英砂搅拌混匀，搅拌的同时加入钢纤维与有机纤维；之后，加入复合减水剂与水搅拌；最后将搅拌好的混合料成型为预制构件即可。本发明能提高活性粉末混凝土制作的建筑构件的耐火极限，进而提高整体建筑物的耐火极限等级，保证建筑物的安全。
The invention discloses refractory reactive powder concrete and a preparation method thereof. The refractory reactive powder concrete comprises Portland cement, nanometer silica powder, mineral powder, quartz sand, steel fibers, a composite water reducing agent, water and organic fibers, the organic fibers are mixtures of polypropylene crude fibers and polypropylene fine fibers, and the mass ratio of the polypropylene crude fibers to the polypropylene fine fibers is (1-3): (1-3). The preparation method comprises the following steps: preparing the composite water reducer; uniformly stirring and mixing the Portland cement, the nano silica powder, the silica fume and the quartz sand, and adding the steel fibers and the organic fibers while stirring; then adding a composite water reducing agent and water, and stirring; and finally, molding the stirred mixture into a prefabricated part. The fire endurance of a building component made of the reactive powder concrete can be improved, so that the fire endurance grade of a whole building is improved, and the safety of the building is ensured.
本发明公开了一种耐火活性粉末混凝土及其制备方法。所述耐火活性粉末混凝土包括硅酸盐水泥、纳米硅微粉、矿粉、石英砂、钢纤维、复合减水剂、水及有机纤维，且所述有机纤维为聚丙烯粗纤维和聚丙烯细纤维的混合物，所述聚丙烯粗纤维和聚丙烯细纤维的质量比为(1‑3)：(1‑3)。制备时，先制备复合减水剂；然后将硅酸盐水泥、纳米硅微粉、硅灰和石英砂搅拌混匀，搅拌的同时加入钢纤维与有机纤维；之后，加入复合减水剂与水搅拌；最后将搅拌好的混合料成型为预制构件即可。本发明能提高活性粉末混凝土制作的建筑构件的耐火极限，进而提高整体建筑物的耐火极限等级，保证建筑物的安全。
Refractory reactive powder concrete and preparation method thereof
一种耐火活性粉末混凝土及其制备方法
27.12.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Reactive powder concrete and preparation method thereof
| Europäisches Patentamt | 2021
Reactive powder concrete product and preparation method thereof
| Europäisches Patentamt | 2024
Copper tailing powder reactive powder concrete and preparation method thereof
| Europäisches Patentamt | 2021
Reactive powder concrete doped with granite powder and preparation method thereof
| Europäisches Patentamt | 2016
Basalt fiber reactive powder concrete and preparation method thereof
| Europäisches Patentamt | 2020