A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-strength composite fiber expansion anti-cracking agent reinforced concrete as well as preparation method and application thereof
The invention belongs to the technical field of concrete, and particularly relates to high-strength composite fiber expansion anti-cracking agent reinforced concrete as well as a preparation method and application thereof. The concrete is prepared from the following components in parts by weight: 400 to 450 parts of sulphoaluminate cement, 200 to 250 parts of fly ash, 600 to 650 parts of sand, 900 to 950 parts of gravel, 10 to 15 parts of expanding agent, 3 to 7 parts of water reducing agent, 1 to 2 parts of defoaming agent, 200 to 250 parts of water, 6 to 10 parts of sisal fiber, 6 to 10 parts of flat glass fiber and 2 to 4 parts of whisker. The composite fiber expansion anti-cracking agent provided by the invention can improve the anti-cracking capability of concrete from two aspects of physics and chemistry, and provides dual protection for the concrete, on one hand, a large number of organic and inorganic fibers generate fine reinforcement and net-shaped supporting effects, and the cracking process of the concrete is inhibited; on the other hand, the expansion component and the cement hydration product are subjected to chemical reaction and generate moderate expansion, so that the concrete can be prevented from shrinking and cracking, the anti-cracking performance of the concrete is improved, and the compressive strength and the breaking strength of the concrete are improved.
本发明属于混凝土技术领域，具体涉及一种高强度复合纤维膨胀抗裂剂增强混凝土及其制备方法和应用。该混凝土包含如下重量份的组分：400‑450份硫铝酸盐水泥、200‑250份粉煤灰、600‑650份砂子、900‑950份碎石、10‑15份膨胀剂、3‑7份减水剂、1‑2份消泡剂、200‑250份水、6‑10份剑麻纤维、6‑10份扁平玻璃纤维、2‑4份晶须。本发明的复合纤维膨胀抗裂剂可从物理和化学两方面提高混凝土的抗裂能力，为混凝土提供双重保护，一方面，数量众多的有机、无机纤维产生微细配筋及网状承托的作用，抑制了混凝土的开裂进程；另一方面，膨胀组分与水泥水化产物发生化学反应并产生适度膨胀，可防止混凝土收缩开裂，改善混凝土抗裂性能，并提高混凝土的抗压和抗折强度。
High-strength composite fiber expansion anti-cracking agent reinforced concrete as well as preparation method and application thereof
The invention belongs to the technical field of concrete, and particularly relates to high-strength composite fiber expansion anti-cracking agent reinforced concrete as well as a preparation method and application thereof. The concrete is prepared from the following components in parts by weight: 400 to 450 parts of sulphoaluminate cement, 200 to 250 parts of fly ash, 600 to 650 parts of sand, 900 to 950 parts of gravel, 10 to 15 parts of expanding agent, 3 to 7 parts of water reducing agent, 1 to 2 parts of defoaming agent, 200 to 250 parts of water, 6 to 10 parts of sisal fiber, 6 to 10 parts of flat glass fiber and 2 to 4 parts of whisker. The composite fiber expansion anti-cracking agent provided by the invention can improve the anti-cracking capability of concrete from two aspects of physics and chemistry, and provides dual protection for the concrete, on one hand, a large number of organic and inorganic fibers generate fine reinforcement and net-shaped supporting effects, and the cracking process of the concrete is inhibited; on the other hand, the expansion component and the cement hydration product are subjected to chemical reaction and generate moderate expansion, so that the concrete can be prevented from shrinking and cracking, the anti-cracking performance of the concrete is improved, and the compressive strength and the breaking strength of the concrete are improved.
本发明属于混凝土技术领域，具体涉及一种高强度复合纤维膨胀抗裂剂增强混凝土及其制备方法和应用。该混凝土包含如下重量份的组分：400‑450份硫铝酸盐水泥、200‑250份粉煤灰、600‑650份砂子、900‑950份碎石、10‑15份膨胀剂、3‑7份减水剂、1‑2份消泡剂、200‑250份水、6‑10份剑麻纤维、6‑10份扁平玻璃纤维、2‑4份晶须。本发明的复合纤维膨胀抗裂剂可从物理和化学两方面提高混凝土的抗裂能力，为混凝土提供双重保护，一方面，数量众多的有机、无机纤维产生微细配筋及网状承托的作用，抑制了混凝土的开裂进程；另一方面，膨胀组分与水泥水化产物发生化学反应并产生适度膨胀，可防止混凝土收缩开裂，改善混凝土抗裂性能，并提高混凝土的抗压和抗折强度。
High-strength composite fiber expansion anti-cracking agent reinforced concrete as well as preparation method and application thereof
一种高强度复合纤维膨胀抗裂剂增强混凝土及其制备方法和应用
HOU JITAO (author) / ZHANG WEIYU (author) / YAN MENG (author) / AI XINJIE (author) / HAN SHUAI (author) / ZHAI CHONGBO (author) / GAO GUOQIANG (author) / GUO CHAO (author) / SONG HUI (author) / SHENG YANG (author)
2024-10-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
High-strength composite fiber expansion anti-cracking agent and preparation process thereof
| European Patent Office | 2021
Concrete reinforced anti-cracking agent as well as preparation method and use method thereof
| European Patent Office | 2022
Self-curing high-expansion fiber anti-cracking agent and preparation method thereof
| European Patent Office | 2021
| European Patent Office | 2023
| European Patent Office | 2024