Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ductile anti-cracking cement mortar with stable conductivity and preparation method of ductile anti-cracking cement mortar
The invention provides ductile anti-cracking cement mortar with stable conductivity and a preparation method of the ductile anti-cracking cement mortar, and belongs to the technical field of cement mortar. The ductile anti-cracking cement mortar with stable conductivity is prepared from the following raw materials: cement, silica fume, blast furnace slag, quartz sand, water, PE fibers, carbon fibers, a polycarboxylate superplasticizer, a dispersing agent and a fiber modifier. According to the invention, by compounding and doping trace PE and carbon fiber, the ductility and conductivity of the cement mortar are synchronously improved. When the cement mortar disclosed by the invention is cracked under the action of external force, macromolecular particles in the PE fiber can continuously play a role, and the viscosity of the cement mortar can be greatly improved through the added fiber modifier, so that the cement mortar and the carbon fiber form a local integral fiber body, and the fiber body is adsorbed on the surface of a cement matrix to prevent generation and propagation speed of microcracks; and the occurrence time of large cracks is delayed and inhibited, so that the ductility is greatly improved.
本发明提供了一种导电性能稳定的延性抗裂水泥砂浆及其制备方法，属于水泥砂浆技术领域。本发明的导电性能稳定的延性抗裂水泥砂浆，由以下原料构成：水泥、硅灰、高炉矿渣、石英砂、水、PE纤维、碳纤维、聚羧酸减水剂、分散剂、纤维改性剂。本发明通过复合掺入微量的PE和碳纤维，实现水泥砂浆延性和导电性能的同步提升。本发明的水泥砂浆受到外力作用开裂时，PE纤维内部的高分子微粒会不断发挥作用，通过添加的纤维改性剂可以大幅提高本身的粘性，从而和碳纤维形成一个局部的整体纤维体，并吸附在水泥基体表面阻止微裂缝的产生和传播速度，进而延缓并抑制较大裂纹的出现时间，从而大幅提高延性。
Ductile anti-cracking cement mortar with stable conductivity and preparation method of ductile anti-cracking cement mortar
The invention provides ductile anti-cracking cement mortar with stable conductivity and a preparation method of the ductile anti-cracking cement mortar, and belongs to the technical field of cement mortar. The ductile anti-cracking cement mortar with stable conductivity is prepared from the following raw materials: cement, silica fume, blast furnace slag, quartz sand, water, PE fibers, carbon fibers, a polycarboxylate superplasticizer, a dispersing agent and a fiber modifier. According to the invention, by compounding and doping trace PE and carbon fiber, the ductility and conductivity of the cement mortar are synchronously improved. When the cement mortar disclosed by the invention is cracked under the action of external force, macromolecular particles in the PE fiber can continuously play a role, and the viscosity of the cement mortar can be greatly improved through the added fiber modifier, so that the cement mortar and the carbon fiber form a local integral fiber body, and the fiber body is adsorbed on the surface of a cement matrix to prevent generation and propagation speed of microcracks; and the occurrence time of large cracks is delayed and inhibited, so that the ductility is greatly improved.
本发明提供了一种导电性能稳定的延性抗裂水泥砂浆及其制备方法，属于水泥砂浆技术领域。本发明的导电性能稳定的延性抗裂水泥砂浆，由以下原料构成：水泥、硅灰、高炉矿渣、石英砂、水、PE纤维、碳纤维、聚羧酸减水剂、分散剂、纤维改性剂。本发明通过复合掺入微量的PE和碳纤维，实现水泥砂浆延性和导电性能的同步提升。本发明的水泥砂浆受到外力作用开裂时，PE纤维内部的高分子微粒会不断发挥作用，通过添加的纤维改性剂可以大幅提高本身的粘性，从而和碳纤维形成一个局部的整体纤维体，并吸附在水泥基体表面阻止微裂缝的产生和传播速度，进而延缓并抑制较大裂纹的出现时间，从而大幅提高延性。
Ductile anti-cracking cement mortar with stable conductivity and preparation method of ductile anti-cracking cement mortar
一种导电性能稳定的延性抗裂水泥砂浆及其制备方法
KONG WEI (Autor:in) / TIAN BINGYANG (Autor:in) / YI JIE (Autor:in) / ZHOU GUO (Autor:in) / WANG ZHIHAO (Autor:in) / LYU CHAO (Autor:in) / ZHOU RONG (Autor:in) / DONG YUNFAN (Autor:in) / YANG MINGMING (Autor:in)
09.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Anti-cracking and anti-cracking plastering mortar and preparation method thereof
| Europäisches Patentamt | 2023