Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Dispersing agent for high-density silica fume, preparation method and silica fume slurry
The invention discloses a dispersing agent for high-density silica fume, a preparation method of the dispersing agent and silica mortar, and belongs to the technical field of concrete admixtures. The dispersing agent for the high-density silica fume comprises the following components in parts by weight: 50-75 parts of a self-made wetting and penetrating agent, 105-150 parts of a self-made functional dispersing agent, 5-10 parts of a self-made anti-settling agent, 2-6 parts of sodium carbonate, 1-3 parts of sodium bicarbonate and 210-260 parts of deionized water. According to the invention, cationic groups are introduced into the dispersing agent and have electrostatic attraction with negative charges on the surfaces of silica fume particles, so that an anchoring effect is achieved; through the interaction with the surfaces of silica fume particles, the stability of the surfaces is improved, and the contact and agglomeration among the particles are reduced; the compressive strength of the concrete is provided; the dispersing agent prepared by the invention can be doped into the high-density silica fume to promote dispersion and stability of the high-density silica fume, plays a positive role in recovery and reutilization of industrial wastes, and has remarkable effects on energy conservation, emission reduction and green sustainable development of the building industry.
本发明公开了一种高密硅灰用分散剂及制备方法和硅灰浆，本发明属于混凝土外加剂技术领域；按重量份计，所述高密硅灰用分散剂包括以下成分：自制润湿渗透剂50‑75份、自制功能分散剂105‑150份、自制防沉剂5‑10份、碳酸钠2‑6份、碳酸氢钠1‑3份、去离子水210‑260份。本发明通过在分散剂中引入阳离子基团，其与硅灰颗粒表面的负电荷有静电引力作用，起到锚固作用；并通过与硅灰颗粒表面的相互作用，来增加表面的稳定性，减少颗粒之间的接触和团聚；提供混凝土的抗压强度；本发明制备得到的分散剂可掺入高密硅灰，促进高密硅灰的分散和稳定，对工业废料的回收、再利用起到积极作用，对建筑行业的节能减排、绿色可持续发展具有显著效果。
Dispersing agent for high-density silica fume, preparation method and silica fume slurry
The invention discloses a dispersing agent for high-density silica fume, a preparation method of the dispersing agent and silica mortar, and belongs to the technical field of concrete admixtures. The dispersing agent for the high-density silica fume comprises the following components in parts by weight: 50-75 parts of a self-made wetting and penetrating agent, 105-150 parts of a self-made functional dispersing agent, 5-10 parts of a self-made anti-settling agent, 2-6 parts of sodium carbonate, 1-3 parts of sodium bicarbonate and 210-260 parts of deionized water. According to the invention, cationic groups are introduced into the dispersing agent and have electrostatic attraction with negative charges on the surfaces of silica fume particles, so that an anchoring effect is achieved; through the interaction with the surfaces of silica fume particles, the stability of the surfaces is improved, and the contact and agglomeration among the particles are reduced; the compressive strength of the concrete is provided; the dispersing agent prepared by the invention can be doped into the high-density silica fume to promote dispersion and stability of the high-density silica fume, plays a positive role in recovery and reutilization of industrial wastes, and has remarkable effects on energy conservation, emission reduction and green sustainable development of the building industry.
本发明公开了一种高密硅灰用分散剂及制备方法和硅灰浆，本发明属于混凝土外加剂技术领域；按重量份计，所述高密硅灰用分散剂包括以下成分：自制润湿渗透剂50‑75份、自制功能分散剂105‑150份、自制防沉剂5‑10份、碳酸钠2‑6份、碳酸氢钠1‑3份、去离子水210‑260份。本发明通过在分散剂中引入阳离子基团，其与硅灰颗粒表面的负电荷有静电引力作用，起到锚固作用；并通过与硅灰颗粒表面的相互作用，来增加表面的稳定性，减少颗粒之间的接触和团聚；提供混凝土的抗压强度；本发明制备得到的分散剂可掺入高密硅灰，促进高密硅灰的分散和稳定，对工业废料的回收、再利用起到积极作用，对建筑行业的节能减排、绿色可持续发展具有显著效果。
Dispersing agent for high-density silica fume, preparation method and silica fume slurry
一种高密硅灰用分散剂及制备方法和硅灰浆
YANG FENGYUAN (Autor:in) / CHEN XU (Autor:in) / JIA BISHENG (Autor:in) / CHEN HONGYU (Autor:in) / WANG CHENGLONG (Autor:in)
05.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
| Springer Verlag | 2017
High-performance pre-dispersed silica fume slurry and preparation method thereof
| Europäisches Patentamt | 2021
| British Library Online Contents | 2010
| Europäisches Patentamt | 2019