A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Anti-crack and anti-impact hybrid fiber concrete and preparation method thereof
The invention discloses an anti-crack and anti-impact hybrid fiber concrete and a preparation method thereof, and belongs to the technical field of concrete preparation, by mixing and doping two different scale grades of macroscopic fibers and nanoscale fibers, the synergistic effect of concrete performance can be enhanced on different scales, and the anti-crack and anti-impact hybrid fiber concrete is obtained. The compressive strength, the splitting tensile strength, the wear resistance and the impact resistance are all remarkably improved, and the concrete comprises the following components in parts by weight: 250-300 parts of coarse aggregate, 100-150 parts of fine aggregate, 50-100 parts of cement, 0-30 parts of superfine fly ash, 0.1-0.5 part of carbon nanofibers, 0.1-1.0 part of PVA fibers, 30-40 parts of water, 0.1-0.8 part of a water reducing agent and 0.01-0.1 part of a dispersing agent. The preparation method comprises the following steps: treating CNFs by using a dispersing agent and a water reducing agent, carrying out ultrasonic dispersion on the formed suspension, and stirring all the components in a stirrer to obtain the CNFs and PVA fiber hybrid fiber concrete.
本发明公开了一种抗裂抗冲击混杂纤维混凝土及其制备方法，属于混凝土制备技术领域，通过混合掺入宏观纤维和纳米级纤维两种不同尺度等级的纤维，可以在不同尺度上增强混凝土性能的协同效应，抗压、劈裂抗拉强度、耐磨性和抗冲击性能均得到显著提高，它包括以下重量份的组分：粗骨料250‑300份、细骨料100‑150份、水泥50‑100份、超细粉煤灰0‑30份、碳纳米纤维0.1‑0.5份、PVA纤维0.1‑1.0份、水30‑40份、减水剂0.1‑0.8份、分散剂0.01‑0.1份。先利用分散剂和减水剂对CNFs进行处理，形成的悬浮液用超声波分散，再把所有的组分在搅拌机中搅拌，即得CNFs和PVA纤维混杂纤维混凝土。
Anti-crack and anti-impact hybrid fiber concrete and preparation method thereof
The invention discloses an anti-crack and anti-impact hybrid fiber concrete and a preparation method thereof, and belongs to the technical field of concrete preparation, by mixing and doping two different scale grades of macroscopic fibers and nanoscale fibers, the synergistic effect of concrete performance can be enhanced on different scales, and the anti-crack and anti-impact hybrid fiber concrete is obtained. The compressive strength, the splitting tensile strength, the wear resistance and the impact resistance are all remarkably improved, and the concrete comprises the following components in parts by weight: 250-300 parts of coarse aggregate, 100-150 parts of fine aggregate, 50-100 parts of cement, 0-30 parts of superfine fly ash, 0.1-0.5 part of carbon nanofibers, 0.1-1.0 part of PVA fibers, 30-40 parts of water, 0.1-0.8 part of a water reducing agent and 0.01-0.1 part of a dispersing agent. The preparation method comprises the following steps: treating CNFs by using a dispersing agent and a water reducing agent, carrying out ultrasonic dispersion on the formed suspension, and stirring all the components in a stirrer to obtain the CNFs and PVA fiber hybrid fiber concrete.
本发明公开了一种抗裂抗冲击混杂纤维混凝土及其制备方法，属于混凝土制备技术领域，通过混合掺入宏观纤维和纳米级纤维两种不同尺度等级的纤维，可以在不同尺度上增强混凝土性能的协同效应，抗压、劈裂抗拉强度、耐磨性和抗冲击性能均得到显著提高，它包括以下重量份的组分：粗骨料250‑300份、细骨料100‑150份、水泥50‑100份、超细粉煤灰0‑30份、碳纳米纤维0.1‑0.5份、PVA纤维0.1‑1.0份、水30‑40份、减水剂0.1‑0.8份、分散剂0.01‑0.1份。先利用分散剂和减水剂对CNFs进行处理，形成的悬浮液用超声波分散，再把所有的组分在搅拌机中搅拌，即得CNFs和PVA纤维混杂纤维混凝土。
Anti-crack and anti-impact hybrid fiber concrete and preparation method thereof
一种抗裂抗冲击混杂纤维混凝土及其制备方法
WANG JUN (author) / BAI XUESHI (author) / XUE HE (author) / GAO ZHIGANG (author) / WANG DONGHAO (author) / SHAN SHIJUN (author) / FU RUIZHEN (author) / SONG ZHESHENG (author) / KANG KI-TAE (author) / FENG YOUDE (author)
2024-04-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Anti-crack fiber concrete and preparation method thereof
| European Patent Office | 2020
Anti-crack and anti-impact concrete and preparation method thereof
| European Patent Office | 2022
Expansive anti-crack fiber concrete and preparation method thereof
| European Patent Office | 2021
Expansion fiber anti-crack waterproof concrete and preparation method thereof
| European Patent Office | 2022
| European Patent Office | 2022