Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cement quick-setting reinforcing agent as well as preparation method and application thereof
The invention relates to a cement quick-setting reinforcing agent as well as a preparation method and application thereof. The cement quick-setting reinforcing agent comprises the following components in parts by mass: 50 parts of recycled concrete micro powder, 50 parts of water, 10-30 parts of ammonium sulfate, 5 parts of ammonium bicarbonate, 30 parts of acetic acid, 30 parts of ammonia water, 10 parts of triethanolamine, 0.1-2 parts of starch ether and 1-2 parts of triethylamine hydrochloride. Compared with the prior art, the nanoscale organic matter modified C-S-H gel is prepared through the steps of salt ion erosion, grinding, organic matter grafting and the like, the effect of increasing the early hydration depth is achieved, the fluidity of cement paste is not changed, the cement strength can be improved, and the setting time can be adjusted; the problem that in the prior art, early strength and setting time control are difficult to consider at the same time is solved, meanwhile, solid waste can be fully utilized, the preparation process is free of pollution, and good environmental benefits are achieved.
本发明涉及一种水泥速凝增强剂及其制备方法与应用，所述水泥速凝增强剂包括以下质量份的各组分：再生混凝土微粉50份、水50份、硫酸铵10～30份、碳酸氢铵5份、乙酸30份、氨水30份、三乙醇胺10份、淀粉醚0.1～2份、三乙胺盐酸盐1～2份。与现有技术相比，本发明通过盐离子侵蚀、研磨和有机物接枝等步骤，制备纳米尺度的有机物改性C‑S‑H凝胶，达到增加早期水化深度的作用，且不改变水泥浆体的流动性，可以增加水泥强度并调节凝结时间，解决了现有技术难以兼顾早期强度和控制凝结时间的问题，同时还能充分利用固体废物，制备过程无污染、具有良好的环境效益。
Cement quick-setting reinforcing agent as well as preparation method and application thereof
The invention relates to a cement quick-setting reinforcing agent as well as a preparation method and application thereof. The cement quick-setting reinforcing agent comprises the following components in parts by mass: 50 parts of recycled concrete micro powder, 50 parts of water, 10-30 parts of ammonium sulfate, 5 parts of ammonium bicarbonate, 30 parts of acetic acid, 30 parts of ammonia water, 10 parts of triethanolamine, 0.1-2 parts of starch ether and 1-2 parts of triethylamine hydrochloride. Compared with the prior art, the nanoscale organic matter modified C-S-H gel is prepared through the steps of salt ion erosion, grinding, organic matter grafting and the like, the effect of increasing the early hydration depth is achieved, the fluidity of cement paste is not changed, the cement strength can be improved, and the setting time can be adjusted; the problem that in the prior art, early strength and setting time control are difficult to consider at the same time is solved, meanwhile, solid waste can be fully utilized, the preparation process is free of pollution, and good environmental benefits are achieved.
本发明涉及一种水泥速凝增强剂及其制备方法与应用，所述水泥速凝增强剂包括以下质量份的各组分：再生混凝土微粉50份、水50份、硫酸铵10～30份、碳酸氢铵5份、乙酸30份、氨水30份、三乙醇胺10份、淀粉醚0.1～2份、三乙胺盐酸盐1～2份。与现有技术相比，本发明通过盐离子侵蚀、研磨和有机物接枝等步骤，制备纳米尺度的有机物改性C‑S‑H凝胶，达到增加早期水化深度的作用，且不改变水泥浆体的流动性，可以增加水泥强度并调节凝结时间，解决了现有技术难以兼顾早期强度和控制凝结时间的问题，同时还能充分利用固体废物，制备过程无污染、具有良好的环境效益。
Cement quick-setting reinforcing agent as well as preparation method and application thereof
一种水泥速凝增强剂及其制备方法与应用
WU KAI (Autor:in) / CHEN YUTING (Autor:in) / ZHU ZHEYU (Autor:in) / GUO JUNYUAN (Autor:in) / XU LINGLIN (Autor:in) / WANG ZHONGPING (Autor:in) / LONG JIANGFENG (Autor:in) / GUO PUXI (Autor:in)
17.10.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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